CN1319367C - Photographic equipment and view finder - Google Patents
Photographic equipment and view finder Download PDFInfo
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- CN1319367C CN1319367C CNB2003101015218A CN200310101521A CN1319367C CN 1319367 C CN1319367 C CN 1319367C CN B2003101015218 A CNB2003101015218 A CN B2003101015218A CN 200310101521 A CN200310101521 A CN 200310101521A CN 1319367 C CN1319367 C CN 1319367C
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- deformable mirror
- diopter
- view finder
- finder
- optical system
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Abstract
Provided is imaging equipment and a finder such that diopter adjustment of the finder equipped with a variable shape mirror reduced in power consumption is made more efficiently. The equipment is equipped with a photography part 1 comprising a photography optical system 3 comprising 1st and 2nd variable shape mirrors A and B which are arranged opposite a free curved-surface lens 2, an imaging element 4, and 1st and 2nd mirror drivers 5 and 6 driving the variable shape mirrors A and B, a finder optical system 16 comprising an objective 12, 3rd and 4th variable shape mirrors C and D, a roof prism 14, and an ocular 15, and a finder part 1 comprising 3rd and 4th mirror drivers 16 and 17 driving the variable shape mirrors C and D; and the diopter adjustment of the finder part is performed by changing the shape of the variable shape mirror C, a diopter adjustment value is stored in a flash memory 23, and the shape of the variable shape mirror C is controlled according to the stored diopter adjustment value to make the diopter adjustment.
Description
Technical field
The present invention relates to a kind of picture pick-up device and view finder, but this picture pick-up device can more effectively be controlled the diopter adjustment of the view finder of the deformable mirror that extending battery life is installed.
Background technology
Patent documentation 1: the spy opens flat 8-328085 communique
Patent documentation 2: the spy opens flat 11-317894 communique
Patent documentation 3: the spy opens the 2002-122784 communique
Generally, camera heads such as roll film camera (silver halide photography machine) and digital camera have the view finder (viewfinder) that is used for confirming the optical finder of image when photography and is built-in with LCD mostly.These view finders have the diopter adjusting mechanism, are used to proofread and correct cameraman individual's weak-eyed, so that can observe distinct image.The diopter adjusting mechanism has two kinds of the power types that manual mobile diopter adjustment moves with the type hand of lens with motor.
About above-mentioned power type, the spy opens the disclosed content of flat 8-328085 communique (patent documentation 1) and is: a plurality of dioptric optical value are stored in advance in the memory of camera, and then it is just accessed can adjust diopter simply.Even this mode has many people when using an equipment, also can reproduce the dioptric advantage that conforms to separately eyesight easily.
On the other hand, as the scheme of the power consumption of the optical system that reduces camera chain or optical finder, this case applicant opens flat 11-317894 communique (patent documentation 2) the spy and has proposed in waiting a kind ofly to adopt replacement existing with the new mode of motor-driven lens, promptly use the optical system of deformable mirror.Below, according to an example of the deformable mirror that proposes in Figure 27 (A), the above-mentioned communique of (B) simple declaration etc.Figure 27 (A) is a plane graph, and Figure 27 (B) is the profile along the X-X ' direction of Figure 27 (A).Shown in Figure 27 (A), (B), deformable mirror 101 constitutes in the following way: a side extending projection at collar plate shape substrate 102 is provided with ring-type supporting walls 103, in by these ring-type supporting walls 103 area surrounded, setting is by three peripheral electrode 104A, 104B, 104C and the fixed electrode that central electrode 104D constitutes, at the openend joint of ring-type supporting walls 103 and the peripheral part of stationary mirror main body 105.
Three peripheral electrode 104A, 104B, 104C are made of the circular-arc battery lead plate by the setting of about hexagonal angle scope respectively.Central electrode 104D is made of the discoideus battery lead plate that is set in place in the border circular areas in described three peripheral electrode 104A, 104B, 104C centre.The pattern of fixed electrode is not limited to the diagram figure, can adopt various forms of patterns.Speculum main body 105 for example, constitutes at the lateral surface lining double as movable electrode of the discoid dish that is formed by polyimide resin and the aluminium of reflection part (mirror surface).
The deformable mirror 101 of Gou Chenging like this is in that (104A～104D) and when applying assigned voltage between the movable electrode (speculum main body 105) by this electrostatic force, controls the curved shape of reflecting surface (speculum main body 105) changeably to described fixed electrode.Thereby, carry out voltage control from the outside, make reflecting surface reach suitable curvature.
Below, another that deformable mirror is described according to Figure 28 (A), (B) constitutes example.This formation example is the deformable mirror of electromagnetic drive type, and Figure 28 (A) is a side cross-sectional views, and Figure 28 (B) is the inside figure of speculum main body.This electromagnetic drive type deformable mirror 201 is provided with ring-type supporting walls 203 at a side upper process of substrate 202, in by these ring-type supporting walls 203 area surrounded, a plurality of permanent magnets 204 are set, and the peripheral part of speculum main body 205 is engaged the openend that is fixed on ring-type supporting walls 203.Speculum main body 205 for example, is by deformable discoid dishes such as polyimide resins, and side (the inside) forms a plurality of coils 206 within it, forms the reflectance coating 207 that is coated with aluminium at its lateral surface.By lead, supply with Control current to each coil 206 respectively from external drive circuit 208.
By supplying with the suitably electric current of control to the coil 206 of the speculum main body 205 of the deformable mirror 201 of such formation from external drive circuit 208, attraction or repulsive force that the electromagnetic force that utilization produces between the magnetic field of electric current that flows to coil 206 and permanent magnet 204 forms, the warpage that makes speculum main body 205 is concavity or convex.
The coil 206 that is located on the speculum main body 205 is formed by film, makes easily, and can reduce the coil self rigidity, and institute is so that speculum main body 205 easy deformation.In addition, also can form permanent magnet is located at the speculum main body side, coil is located at structure on the substrate.In addition,, also have the speculum main body to use piezoelectric, the speculum that utilizes piezoelectric effect to realize being out of shape etc. as deformable mirror.
The deformable mirror that constitutes like this is configured in the optical system of camera,, can changes the curvature of speculum main body, focus and become doubly and operate by applying voltage or Current Control.The shape of speculum main body is not limited to circle, also can be oval.The deformable mirror of Gou Chenging has two big features like this, be that power consumption ratio motor-driven lens optical system in the past is low, in addition, the motor sound of motor-driven lens optical system in the past and the noise of drive system are big, and deformable mirror does not have sound substantially.
In addition, open in the 2002-122784 communique (patent documentation 3) the spy, this case applicant is photographic optical system optical texture and the optical finder optical texture to deformable mirror is installed also, has proposed various motions.
; as described in above-mentioned communique; although the power type diopter adjustment unit of view finder has memory cell; the advantage that has the many people of easy realization to use; but; need be used for mobile diopter and adjust the motor special of lens, so the volume of view finder is big, exist the camera head volume to become problem big and that power consumption increases.
In addition, deformable mirror has been brought into play the effect that can reduce power consumption with the picture pick-up device of optical system as optical finder, can extending battery life, but, need carry out new control for the diopter adjustment function of corresponding view finder.But, in the disclosed existing motion of above-mentioned communique, the relevant suitably control of the diopter adjustment of view finder that deformable mirror is installed is not considered.
Summary of the invention
The present invention is in order to solve the picture pick-up device that uses the view finder with power type diopter adjustment unit in the past or to use the problems referred to above of the picture pick-up device of the deformable mirror that above-mentioned communique proposes to propose, purpose provides a kind of picture pick-up device and view finder, can more effectively control the diopter adjustment of the view finder that the deformable mirror that can reduce power consumption is installed.
In order to address the above problem, invention 1 is a kind of picture pick-up device, have and be used for the camera unit that image is photographed and be used to observe the view finder of confirming photographs, it is characterized in that, have: deformable mirror, it has the reflecting surface that is caused distortion by energising, can adjust the diopter of described view finder by the change of shape of this reflecting surface; Memory cell is used to store the shape relevant information of adjusting corresponding described deformable mirror with described diopter; And control unit, according to described canned data, described deformable mirror is controlled to be the regulation shape.
The picture pick-up device of Gou Chenging is according to memory cell institute canned data like this, the dioptric deformable mirror that is used to adjust view finder is carried out shape control, so can realize having the picture pick-up device that the band diopter is adjusted the view finder of function, this view finder can reliably be adjusted diopter effectively according to institute's canned data, and volume is little, little power consumption.
Invention is as inventing 1 described picture pick-up device, it is characterized in that, the relevant information of the multiple shape of described cell stores is as the shape relevant information of described deformable mirror.
The picture pick-up device of Gou Chenging can be stored the relevant information of the multiple shape of deformable mirror like this, so the diopter adjustment that can make view finder is corresponding to a plurality of cameramans.
Invention 3 is as inventing 1 or 2 described picture pick-up devices, it is characterized in that, described control unit responds the connection of this picture pick-up device power supply, according to institute's canned data described deformable mirror is controlled to be the regulation shape.
The picture pick-up device of Gou Chenging carries out the diopter adjustment of view finder by energized according to institute's canned data like this, so behind power connection, can enter the photography action at once.Wherein institute's canned data also comprises the default value of the diopter adjusted value when dispatching from the factory.
Invention 4 is as inventing 1 or 2 described picture pick-up devices, it is characterized in that, when described control unit is photographic pattern at this picture pick-up device, according to institute's canned data described deformable mirror being controlled to be the regulation shape.
Only can observe and confirm that viewfinder image get final product,, can reach effective power savings thus so when above-mentioned photographic pattern, control by the shape of deformable mirror and to carry out the diopter adjustment in when action photography.
The picture pick-up device of Gou Chenging at non-power status, utilizes deformable mirror that diopter is adjusted into standard diopter state like this, confirms unclear viewfinder image so also can observe when non-power status.The reflector shape of the deformable mirror under the non-power status is generally flat shape, but also can anticipate into molded non-planar.The standard diopter refers to cameraman's mean vision (eyesight after the people with glasses corrects by glasses), for example be about-1diop～-4diop.Therefore, the aim of the content of foregoing invention 5 is that finder optical systems such as the reflector shape of the deformable mirror during non-power status and other lenses make up, with reach-1diop～-standard diopter about 4diop.
Invention 6 is as inventing each described picture pick-up device in 1～5, it is characterized in that described view finder is an optical finder.
The view finder of each described picture pick-up device is not only optical finder in the foregoing invention 1～5, also can use the view finder that is built-in with LCD, but the present invention 6 can reduce cost when using optical finders, can further reduce power consumption.
Invention 7 is as inventing 6 described picture pick-up devices, it is characterized in that, described deformable mirror carries out the diopter adjustment, and responds the focus adjustment of the photographic optical system that described camera unit has, and adjusts the focus of described view finder.
In the picture pick-up device of Gou Chenging, be used to adjust the focus that the dioptric deformable mirror of view finder also can be adjusted view finder like this, so, can observe and confirm more distinct image by adjusting the focus of view finder.
Invention 8 is as inventing 6 or 7 described picture pick-up devices, it is characterized in that, described view finder has a plurality of deformable mirrors, and the change that responds the photographic optical system that described camera unit has is doubly adjusted, and carries out the change of described view finder and doubly adjusts.
In the picture pick-up device of Gou Chenging, view finder has a plurality of deformable mirrors like this, can carry out doubly adjusting corresponding change with the change of camera chain and doubly adjust, and can observe the consistent change times image of the angle of visual field of confirming the angle of visual field and photographs with view finder.
Invention 9 is as inventing 8 described picture pick-up devices, it is characterized in that, the shape of described a plurality of deformable mirrors is adjusted to opposite concavo-convex of direction respectively.
Like this in the picture pick-up device of Gou Chenging, the shape that constitutes a plurality of deformable mirrors of view finder is adjusted to opposite concavo-convex of direction respectively, so when can enlarge the change multiple proportions of change times image of view finder, can observe and confirm the little change times image of aberration.
Invention 10 is a kind of being used to observe the view finder of confirming image, it is characterized in that having: deformable mirror, and it has the reflecting surface that is caused distortion by energising, can adjust the diopter of described view finder by the change of shape of this reflecting surface; Memory cell, it is used to store the shape relevant information of adjusting corresponding described deformable mirror with described diopter; And control unit, according to described canned data, described deformable mirror is controlled to be the regulation shape.
The view finder of Gou Chenging like this, according to information by cell stores, carry out shape control to being used to adjust dioptric deformable mirror, thus can realize according to institute's canned data adjust effectively reliably that diopter and volume are little, little power consumption possess the view finder that diopter is adjusted function.
Invention 11 is a kind of image viewing view finders, it is characterized in that, have: deformable mirror, it has the reflecting surface that is caused distortion by energising, can adjust the diopter of described view finder by the change of shape of this reflecting surface, described view finder utilizes the reflector shape of the described deformable mirror under the non-power status, and making the diopter state is standard diopter state.
The view finder of Gou Chenging at non-power status, utilizes deformable mirror that diopter is adjusted into standard diopter state like this, so also can observe the view finder of confirming unclear image can be implemented in non-power status the time.
Invention 12 is a kind of picture pick-up devices, have and be used for the camera unit that image is photographed and be used to observe the view finder of confirming photographs, it is characterized in that, have: deformable mirror, it has the reflecting surface that is caused distortion by energising, can adjust the diopter of described view finder by the change of shape of this reflecting surface; With make this deformable mirror Deformation Control unit, this control unit is controlled described deformable mirror, makes that the diopter of described view finder is the dioptric inappropriate diopter that is different from when using view finder when not using described view finder.
The picture pick-up device of Gou Chenging like this, control described deformable mirror, make that the diopter of described view finder is the dioptric inappropriate diopter that is different from when using view finder, so can provide the warning of inappropriate use view finder when not using described view finder.
The picture pick-up device of Gou Chenging like this, photo distance is controlled to be inappropriate diopter to view finder in short-term after setting macro mode or behind the AF, so can effectively prevent to produce the photography of parallax.
Invention 14 is as inventing 12 described picture pick-up devices, it is characterized in that, described control unit is controlled, and makes when using the electronic zoom unit to photograph, and the diopter of described view finder is described inappropriate diopter.
In the picture pick-up device of Gou Chenging, when using the electronic zoom unit to photograph, view finder is controlled to be inappropriate diopter like this, so can effectively prevent the photography of generation difference between the view finder angle of visual field and the photography angle of visual field.
Description of drawings
Fig. 1 is that the integral body of digital camera of having used the 1st execution mode of picture pick-up device of the present invention constitutes block diagram.
Fig. 2 is when carrying out the zoom ratio adjustment of photographic optical system in expression the 1st execution mode, the example of shape figure of the electrostatic the 1st during each zoom ratio and the 2nd deformable mirror A, B.
Fig. 3 carries out focus from the near point to the far point when adjusting in photographic optical system in expression the 1st execution mode, the example of shape figure of electrostatic the 1st deformable mirror A.
Fig. 4 is that expression is carried out the zoom ratio adjustment of photographic optical system and focus in the 1st execution mode when adjusting, and imposes on the voltage characteristic curve of electrostatic the 1st and the 2nd deformable mirror A, B.
Fig. 5 is when carrying out the zoom ratio adjustment of finder optical system in expression the 1st execution mode, the example of shape figure of the electromagnetic drive type the 3rd during each zoom ratio and the 4th deformable mirror C, D.
Fig. 6 carries out focus from the near point to the far point when adjusting at finder optical system in expression the 1st execution mode, the example of shape figure of electromagnetic drive type the 3rd deformable mirror C.
Fig. 7 is when carrying out the diopter adjustment of finder optical system in expression the 1st execution mode, the example of shape figure of electromagnetic drive type the 3rd deformable mirror C.
Fig. 8 is that expression is carried out the zoom ratio adjustment of finder optical system and focus in the 1st execution mode when adjusting, and imposes on the voltage characteristic curve of electromagnetic drive type the 3rd and the 4th deformable mirror C, D.
Fig. 9 is when carrying out the zoom ratio adjustment of finder optical system in expression the 1st execution mode, the example of shape figure of electrostatic the 3rd and the 4th deformable mirror C, D during each zoom ratio.
Figure 10 is the focus from the near point to the far point that finder optical system is carried out in expression in the 1st execution mode when adjusting, the example of shape figure of electrostatic the 3rd deformable mirror C.
Figure 11 is when carrying out the diopter adjustment of finder optical system in expression the 1st execution mode, the example of shape figure of electrostatic the 3rd deformable mirror C.
Figure 12 is that expression is carried out the zoom ratio adjustment of finder optical system and focus in the 1st execution mode when adjusting, and imposes on the voltage characteristic curve of electrostatic the 3rd and the 4th deformable mirror C, D.
Figure 13 is that the expression explanation is with the zoom ratio adjustment of the digital camera of the 1st execution mode shown in Figure 1 and the flow chart that focus is adjusted into the main program of main action.
Figure 14 is the flow chart of the subprogram action of the 1st speculum control 1 in the expression flow chart shown in Figure 13.
Figure 15 is when carrying out zoom operation in expression the 1st speculum control 1, to photographic optical system with and finder optical system with the sequential chart of the state of deformable mirror (electrostatic) energising.
Figure 16 is the flow chart of the subprogram action of the 2nd speculum control 2 in the expression flow chart shown in Figure 13.
Figure 17 is illustrated in photographic optical system usefulness and the finder optical system sequential chart of the maintenance of deformable mirror (electrostatic) with "on" position in the control 2 of the 2nd speculum.
Figure 18 be illustrated in photographic optical system in the 2nd speculum control 2 with and finder optical system with the maintenance of deformable mirror (electrostatic) sequential chart with another state of energising.
Figure 19 is the flow chart of the subprogram action of the AF control in the expression flow chart shown in Figure 13.
Figure 20 is used to illustrate that the diopter with the digital camera of the 1st execution mode shown in Figure 1 is adjusted into the flow chart of main action.
Figure 21 is the block diagram of view finder unit of the digital camera of expression the 2nd execution mode of the present invention.
Figure 22 is when using electrostatic deformable mirror C in expression the 2nd execution mode, the focus adjusted value corresponding with deformed shape and the corresponding relation figure of diopter adjusted value.
Figure 23 is the block diagram of view finder of the digital camera of expression the 3rd execution mode of the present invention.
Figure 24 is when using electrostatic deformable mirror C in expression the 3rd execution mode, the focus adjusted value corresponding with deformed shape and the corresponding relation figure of diopter adjusted value.
Figure 25 is the block diagram of view finder of the digital camera of expression the 4th execution mode of the present invention.
Figure 26 is when using electrostatic deformable mirror C in expression the 4th execution mode, the corresponding relation figure of deformed shape and diopter adjusted value.
Figure 27 represents the topology example figure of deformable mirror.
Figure 28 represents another topology example figure of deformable mirror.
Embodiment
Below, embodiments of the present invention are described.Fig. 1 has used the general block diagram that the integral body of digital camera of the 1st execution mode of picture pick-up device of the present invention constitutes.Among Fig. 11 represents camera unit, and this camera unit 1 is by constituting with the lower part: free curved surface prism 2; Photographic optical system 3, its by with the 1st deformable mirror A of the relative configuration of upper rear portion lens face of this free curved surface prism 2 and with the front lower lens face of this free curved surface prism 2 relatively the 2nd deformable mirror B of configuration constitute; Imaging apparatus 4 with the relative configuration of lower backside lens face of this free curved surface prism 2; With the 1st mirror drive device 5 and the 2nd mirror drive device 6 that are respectively applied for driving the 1st and the 2nd deformable mirror A, B.Herein, what constitute that the 1st and the 2nd deformable mirror A, the B of above-mentioned photographic optical system use is to control the electrostatic speculum of deformed shape by applying voltage, but also can use the electromagnetic drive type speculum.
Among Fig. 1,11 expression view finder unit, it has: finder optical system 16, be used to drive the 3rd and the 4th deformable mirror C, the 3rd mirror drive device 17 of D and the 4th mirror drive device 18, wherein, finder optical system 16 is by object lens 12, the 3rd deformable mirror C with these object lens 12 relative configurations, catoptrical the 4th deformable mirror D of incident the 3rd deformable mirror C, ridge prism (ダ Ha プ リ ズ system) 14, constitute with the eyepiece 15 of the ejaculation light of incident ridge prism 14, object lens 12 are made of concavees lens and convex lens, ridge prism 14 has field stop 13, is used for the reverberation of incident the 4th deformable mirror D, acquisition is the erect image of 90 ° of sight line turnings.The the 3rd and the 4th deformable mirror C, the D that constitute above-mentioned finder optical system 16 can use by applying electric current and control the electromagnetic drive type speculum of deformed shape or control the electrostatic speculum of deformed shape by applying voltage.
The image pickup signal of the digital camera of above-mentioned execution mode is handled and operation control system has: the CPU21 of each unit action of control camera, power switch button, release-push, zoom button (optics/electronics interlock) etc., in addition, also comprise with the lower part: operating unit 22, it carries out the input of diopter adjusted value, the switching of diopter adjusted value, the switch of microspur, the switching manipulation of electronic zoom etc.; Flash memory 23, the associative search table (LUT:lookup table) of the control data of its storage camera program and each deformable mirror etc.; Imaging circuit 24, it generates view data to handling from the image pickup signal of imaging apparatus 4; AF circuit 25, it uses view data degree of comparing AF to handle; The DRAM26 of temporarily storing image data; View data is carried out the graphics processing unit circuit 27 of various image processing; The image-display units 28 of display image data; With storage card 29 of recording image data etc.
Below, the general action of diagrammatic illustration camera unit 1 and view finder unit 11.Incide the axial incident ray of front upper lens face of the free curved surface prism 2 of photographic optical system 3, incide the 1st deformable mirror A and be reflected by the upper rear portion lens face, this reverberation incides the upper rear portion lens face once more, incide the 2nd deformable mirror B and be reflected by the front lower lens face, this reverberation incides the front lower lens face once more, incides imaging apparatus 4 by the lower backside lens face.
It is the input indication of basis from operating unit 22 that the zoom ratio of photographic optical system (becoming doubly) is adjusted, by adjust CPU control, impose on from the 1st and the 2nd mirror drive device 5,6 that the voltage of each deformable mirror A, B carries out, the focus adjustment is according to from the AF signal of AF circuit 25, by adjust CPU control, impose on from the 1st mirror drive device 5 that the voltage of each deformable mirror A carries out.
When the zoom ratio of photographic optical system is adjusted in Fig. 2 (A)～(C) expression, the 1st and the 2nd deformable mirror A during each zoom ratio, the example of shape figure of B.Fig. 2 (A) expression is in order to be made as zoom ratio wide-angle (wide) value W, and applies wide-angle zoom voltage A to the 1st and the 2nd deformable mirror A, B respectively
w, B
w, the state when making the speculum bulk deformation to wide-angle position, Fig. 2 (B) expression is in order to be made as zoom ratio median M, and zoom voltage A in the middle of the 1st and the 2nd deformable mirror A, B apply respectively
M, B
M, the state when making it be deformed to the centre position.Fig. 2 (C) expression is in order to be made as zoom ratio the value of looking in the distance T, and applies the zoom of looking in the distance voltage A to the 1st and the 2nd deformable mirror A, B respectively
T, B
T, make it be deformed to state when looking in the distance the position.
Fig. 3 (A)～(C) expression photographic optical system is carried out focus from the near point to the far point when adjusting, the example of shape figure of the 1st deformable mirror A.Fig. 3 (A) expression is in order to be made as near point (20cm) to focus when zoom ratio is median M, and applies voltage A to the 1st deformable mirror A
M2, the state when making the speculum bulk deformation to the near point position, Fig. 3 (B) expression is in order to be made as focus intermediate distance (2m), and applies voltage A to the 1st deformable mirror A
M1, the state when making it be deformed to the centre position, Fig. 3 (C) expression is in order to be made as focus the far point infinity, and applies voltage A to the 1st deformable mirror A
M3, the state when making it be deformed to the far point position.
Fig. 4 is that expression is carried out the zoom ratio adjustment of above-mentioned photographic optical system and focus when adjusting, and imposes on the voltage characteristic curve of the 1st and the 2nd deformable mirror A, B respectively.Solid line among Fig. 4 represents to impose on the voltage curve of the 1st deformable mirror A, and dotted line represents to impose on the voltage curve of the 2nd deformable mirror B.These each magnitudes of voltage (voltage data) that apply voltage response are stored in the flash memory 23 with the form of look-up table.As the magnitude of voltage in the look-up table (voltage data), the whole correspondences of each magnitude of voltage of all zoom ratios or all focal positions can be stored, but for the conserve memory capacity, also can only store the zoom ratio of corresponding main point and the magnitude of voltage of focal position, calculate main some each point corresponding voltage value in addition by interpolation.Above-mentioned magnitude of voltage, can be by each fixed electrode (for example 4) difference storage voltage value of each deformable mirror, but for the conserve memory capacity, when the deviation that applies voltage between each fixed electrode is constant, for example, also can only store the magnitude of voltage that imposes on the electrode that is configured in middle section, calculate the magnitude of voltage that imposes on other electrodes (for example 3) by computing.
Below, the action of diagrammatic illustration view finder unit.The action of the summary of view finder unit 11 is as follows: the axial incident ray that incides object lens 12 incides the 3rd deformable mirror C and is reflected, this reverberation incides the 4th deformable mirror D and is reflected, this reverberation incides ridge prism 14 by field stop 13, turn 90 ° as the erect image ejaculation, and incide user's pupil 19 by eyepiece 15.
Wherein, the zoom ratio adjustment of finder optical system 16 and the zoom ratio of photographic optical system are adjusted identical, be according to from the input of operating unit 22 indication, by adjust CPU control, impose on from the 3rd and the 4th mirror drive device 17,18 that the curtage of the 3rd and the 4th deformable mirror C, D carries out.That is, when the 3rd and the 4th deformable mirror C, D used the electromagnetic drive type speculum, the electric current that is applied on it by adjustment carried out the zoom ratio adjustment, and when using the electrostatic speculum, the voltage that is applied on it by adjustment carries out the zoom ratio adjustment.Focus is adjusted and is adjusted identical with the focus of photographic optical system, be according to from the AF signal of AF circuit 25, by adjust CPU21 control, impose on from the 3rd mirror drive device 17 that the electric current (during electromagnetic drive type) of the 3rd deformable mirror C or voltage (during electrostatic) adjusts.The diopter adjustment of finder optical system 16 is: by the curtage that imposes on deformable mirror C is adjusted, utilize with the combination of deformable mirror C other optical systems in addition and adjust diopter, making diopter is the regulation diopter adjusted value corresponding with each cameraman's eyesight.
When Fig. 5 (A), (B) are deformable mirror C, the D use electromagnetic drive type speculum of expression finder optical system 16, the 3rd and the 4th deformable mirror C, the example of shape figure of D at the zoom ratio two ends when carrying out the zoom ratio adjustment.Fig. 5 (A) expression makes the 3rd and the 4th deformable mirror C, D flow through wide-angle zoom electric current C respectively for zoom ratio being made as wide-angle value W
WI, D
WIState when making the speculum bulk deformation to wide-angle position, Fig. 5 (B) expression be in order to be made as zoom ratio the value of looking in the distance T, and apply the zoom of looking in the distance electric current C to the 3rd and the 4th deformable mirror C, D respectively
TI, D
TI, make it be deformed to state when looking in the distance the position.When adjusting zoom ratio like this,, zoom ratio can be enlarged, the little change of aberration times image can also be confirmed by the speculum body shape of the 3rd and the 4th deformable mirror C, D is adjusted into the opposite concaveconvex shape of direction respectively.
Fig. 6 (A)～(C) is illustrated in finder optical system and carries out focus from the near point to the far point when adjusting, the example of shape figure of the 3rd deformable mirror C (electromagnetic drive type).Fig. 6 (A) expression is in order to be made as near point (20cm) to focus when zoom ratio is median M, and makes the 3rd deformable mirror C flow through electric current C
MI2, the state when making it be deformed to the near point position, Fig. 6 (B) expression is in order to be made as focus intermediate distance (2m), and makes the 3rd deformable mirror C flow through electric current C
MI1, the state when making it be deformed to the centre position, Fig. 6 (C) expression is in order to be made as focus far point (infinity), and makes the 3rd deformable mirror C flow through electric current C
MI3, the state when making it be deformed to the far point position.
Fig. 7 (A), (B) are the example of shape figure of diopter that finder optical system is carried out in expression the 3rd deformable mirror C (electromagnetic drive type) when adjusting.When Fig. 7 (A) expression is made as median M to zoom ratio, in order to make up, be diopter correction+1diop to make the 3rd deformable mirror C flow through electric current C with other optical systems
DI1And producing the state of distortion, Fig. 7 (B) expression is in order to be diopter correction-6diop to make the 3rd deformable mirror C flow through electric current C
DI2And the state of generation distortion.
The shape of the speculum main body of the 3rd deformable mirror C of non-power status by making up with other finder optical systems, becomes standard diopter state, so that also can observe the unclear viewfinder image of affirmation at non-power status.The shape of the speculum main body of the deformable mirror of non-power status is generally flat shape, but also in advance forming processes be molded non-planar.The standard diopter is cameraman's a mean vision, for example be about-1diop～-4diop.
Fig. 8 is that expression is carried out the zoom ratio adjustment of above-mentioned finder optical system and focus when adjusting, and imposes on current characteristics curve chart and the diopter adjusted value scope of the 3rd and the 4th deformable mirror C, D respectively.Solid line among Fig. 8 represents to impose on the current curve of the 3rd deformable mirror C, and dotted line represents to impose on the current curve of the 4th deformable mirror D.These apply each current value (current data) of current characteristics curve and impose on the magnitude of voltage of the 1st and the 2nd deformable mirror A, B of photographic optical system same, are stored in the flash memory 23 with the form of look-up table.In addition, about the diopter adjustment, the actual point of adjusting has and get final product about 5～6, can store diopter adjustment electric current correction data with other form of look, the corrected value of the current data when being used to proofread and correct above-mentioned zoom ratio adjustment and focus adjustment.
Below, when the 3rd and the 4th deformable mirror C, the D use electrostatic speculum of finder optical system 16 is described, the deformed shape example at the zoom ratio two ends when carrying out the zoom ratio adjustment.Fig. 9 (A) expression applies wide-angle zoom voltage C to the 3rd and the 4th deformable mirror C, D respectively for zoom ratio being made as wide-angle value W
WV, D
WV, the state when making the speculum bulk deformation to wide-angle position, Fig. 9 (B) expression is in order to be made as zoom ratio the value of looking in the distance T, and applies the zoom of looking in the distance voltage C to the 3rd and the 4th deformable mirror C, D respectively
TV, D
TV, make it be deformed to state when looking in the distance the position.
Figure 10 (A)～(C) is illustrated in finder optical system and carries out focus from the near point to the far point when adjusting, the deformed shape exemplary plot of electrostatic the 3rd deformable mirror C.Figure 10 (A) expression is in order to be made as near point (20cm) to focus when zoom ratio is median M, and applies voltage C to the 3rd deformable mirror C
MV2, the state when making it be deformed to the near point position, Figure 10 (B) expression is in order to be made as focus intermediate distance (2m), and applies voltage C to the 3rd deformable mirror C
MV1, the state when making it be deformed to the centre position, Figure 10 (C) expression is in order to be made as focus far point (infinity), and applies voltage C to the 3rd deformable mirror C
MV3, the state when making it be deformed to the far point position.
Figure 11 (A), (B) are diopters that finder optical system is carried out in expression when adjusting, the example of shape figure of the 3rd deformable mirror C (electrostatic).When Figure 11 (A) expression is made as median M to zoom ratio,, is the diopter correction+1diop, and applies voltage C to the 3rd deformable mirror C in order to make up with other optical systems
DV1The back produces the state of distortion, and Figure 11 (B) expression is-6diop for diopter is proofreaied and correct, and applies voltage C to the 3rd deformable mirror C
DV2The back produces the state of distortion.
When Figure 12 is the above-mentioned finder optical system use electrostatic the 3rd of expression and the 4th deformable mirror C, D, when carrying out the adjustment of zoom ratio adjustment and focus, impose on voltage characteristic curve and the diopter adjusted value scope of each speculum C, D respectively.Solid line among Figure 12 represents to impose on the voltage curve of the 3rd deformable mirror C, and dotted line represents to impose on the voltage curve of the 4th deformable mirror D.These apply each magnitude of voltage (voltage data) of voltage response and impose on the magnitude of voltage of the 1st and the 2nd deformable mirror A, B of photographic optical system same, are stored in the flash memory 23 with the form of look-up table.In addition, identical about the diopter adjustment with electromagnetic drive type, can be with other form of look storage diopter adjustment voltage correction data, the corrected value of the voltage data when being used to proofread and correct above-mentioned zoom ratio adjustment and focus adjustment.
Below, the molar behavior of the digital camera that comprises camera unit 1 and view finder unit 11 is described.At first, according to flow chart shown in Figure 13, illustrate that zoom adjustment and the AF till the operation of recording controls.The flowcharting main program of Figure 13, when the pattern of digital camera is not photograph mode but playback (regeneration) pattern, do not use the optical system 3 of camera unit 1 and the optical system 16 of view finder unit 11, so power supply one is connected, at first whether the acts of determination pattern is photograph mode (step S1).When pattern was photograph mode, the 1st～the 4th deformable mirror A～D that photographic optical system 3 and finder optical system 16 used carried out initial setting (step S2), when pattern is not photograph mode, carried out playback process (step S3).
When photographic optical system 3 and finder optical system 16 are carried out initial setting, the digital camera of band zoom function, usually wish at first the visual field to be made as wide as far as possible, so zoom is made as wide-angle, object distance (focus) is automatically made centre position 2m (default setting) for the time being, then correspondingly respectively to the 1st of photographic optical system and finder optical system～the 4th deformable mirror A～D control of switching on.
After each deformable mirror of photographic optical system 3 and finder optical system 16 carried out initial setting, then, judge whether carry out zoom operation (step S4), when carrying out zoom operation, enter the subprogram (step S5) of the 1st speculum control 1.The subprogram action of the 1st speculum control 1, shown in the flow chart of Figure 14, by the LCD of image-display units 28 during just at display image, can utilize this display image to confirm photographs, can not use finder optical system thereby be envisioned for, whether close (step S5-1) so at first judge image-display units 28 usefulness LCD.
Be judged to be image-display units 28 usefulness LCD when closing at this determination step, photographic optical system with deformable mirror A, B and finder optical system deformable mirror C, D, is carried out the zoom adjustment corresponding with the zoom ratio that sets energising (step S5-2).On the other hand, be judged to be image-display units 28 usefulness LCD when opening, need not make finder optical system with deformable mirror C, D action, so only photographic optical system is carried out the zoom adjustment with energising (step S5-3) with deformable mirror A, B.Finish the subprogram action of the 1st speculum control 1 after these actions, return main program once more.
Carrying out above-mentioned zoom when adjusting, when photographic optical system is all used the electrostatic speculum with deformable mirror A, B and finder optical system with deformable mirror C, D, is following carrying out to the energising of each deformable mirror A～D.That is, shown in the sequential chart of Figure 15, when utilizing zoom lever or zoom button to carry out zoom operation, according to the zoom ratio corresponding with its operation, to photographic optical system and finder optical system with each deformable mirror switch on (applying voltage).At this moment, each deformable mirror A～D staggered in proper order switch on, so that do not repeat conduction time, from wide-angle to looking in the distance, the energising amount that makes each deformable mirror A～D according to each zoom ratio obtains and the corresponding net shape of setting zoom ratio by energising amount Ean, Ebn, Ecn, Edn as becoming big from Ea1, Eb1, Ec1, Ed1 to order shown in Ea2, Eb2, Ec2, the Ed2.To the energising (applying voltage) of each deformable mirror, can prevent the increase of peak current when adjusting zoom ratio by such control.
The division driving mode that staggers the conduction time of above-mentioned each deformable mirror is only implemented under the situation of using the electrostatic deformable mirror.Therefore, when photographic optical system and finder optical system use the electromagnetic drive type speculum with each deformable mirror A～D, apply continuously and the corresponding electric current of setting with zoom lever etc. of zoom ratio simultaneously to each deformable mirror A～D, up to through below AF control finish photography and move.
Return main program flow chart shown in Figure 13 once more, subsequent action is described.The action one of the subroutine procedure S5 of the 1st speculum control 1 finishes, and when each deformable mirror used the electrostatic speculum, the zoom operation in the subprogram action of the 1st speculum control 1 was judged and whether passed through the stipulated time (step S6) after finishing with energising.Carry out the determination step S4 of above-mentioned zoom operation whether,, omit the action step S5 of i.e. the 1st speculum control of subroutine procedure 1, also whether pass through the judgement of afore mentioned rules time this moment if when not carrying out zoom operation.That is, judge carry out photographic optical system with and finder optical system whether pass through the stipulated time after switching on the initial setting of deformable mirror.
Pass through the reasons are as follows of judgement of this stipulated time.Promptly, during the electrostatic deformable mirror, applied be used to be deformed into the voltage of regulation shape after, one stops to apply this voltage, along with leaking of time through producing electric charge, the regulation deformed shape that can not keep the speculum main body is so for the deformed shape that makes regulation remains in the permissible value scope, need apply voltage repeatedly with specific time interval.
At the step S6 that judges through the afore mentioned rules time, after stopping energising, during through the stipulated time (this example is 5 seconds), enter the subprogram action (step S7) of the 2nd speculum control 2.The subprogram of the 2nd speculum control 2, identical with the subprogram action of above-mentioned the 1st speculum control 1 shown in the flow chart of Figure 16, at first, judge whether the LCD of image-display units 28 closes (step S7-1).At this determination step S7-1, close if be judged to be the LCD of image-display units 28, photographic optical system is carried out speculum with deformable mirror A, B and finder optical system with deformable mirror C, D keep with energising (step S7-2).On the other hand, when the LCD that is judged to be image-display units 28 opens, finder optical system is failure to actuate with deformable mirror C, D, keeps with energising (step S7-3) so only photographic optical system is carried out speculum with deformable mirror A, B.Move by the subprogram that the 2nd speculum control 2 is finished in these action backs, return main program flow once more.
(applying voltage) is following carries out with switching in the shape maintenance of each deformable mirror A～D of above-mentioned electrostatic.Promptly, as shown in figure 17, each deformable mirror A～D is applied separately final deformed shape with voltage Ean, Ebn, Ecn, Edn with staggering in proper order, so that do not repeat the conduction time of each deformable mirror A～D, the energising fixed time interval T1 (this example is 5 seconds) with regulation applies voltage to each deformable mirror A～D repeatedly under this state simultaneously.Like this, even keep using when switching on, can prevent that also peak current from increasing.
Make finder optical system remain the importance of regulation deformed shape with deformable mirror, lower than making photographic optical system with the importance that deformable mirror remains the regulation deformed shape, its allowed band is envisioned for greater than the photographic optical system deformable mirror, so as shown in figure 18, for example, can be made as 2 times (this example are 10 second) of photographic optical system to energising fixed time interval (energising frequency), can further reduce power consumption like this with deformable mirror.
Above-mentioned judgement is through the step S6 of stipulated time and the subprogram action step S7 of the 2nd speculum control 2, as mentioned above, only photographic optical system with and finder optical system implement during with deformable mirror A～D use electrostatic speculum.Therefore, when these deformable mirrors A～D uses the electromagnetic drive type speculum, can omit these and judge through the step S6 of stipulated time and the subprogram action step S7 of the 2nd speculum control 2.
Return main program flow chart shown in Figure 13 once more, subsequent action is described.After the action of the subprogram action step S7 that has carried out the 2nd speculum control 2, judge whether carried out releasing operation (step S8) for the first time.In front judgement if be judged to be when not passing through the stipulated time, is also skipped the subprogram action step S7 of the 2nd speculum control 2 through the step S6 of stipulated time, changes the determination step S8 of above-mentioned first time of releasing operation over to.In addition, use the electromagnetic drive type speculum, and when omitting the subprogram action step S7 that judges through the step S6 of stipulated time and the 2nd speculum control 2, also change the determination step S8 of releasing operation for the first time at deformable mirror A～D.
After carrying out the releasing operation first time, the photography that promptly begins camera is prepared, the subprogram action (step S9) of beginning AF control.Do not carry out the first time during releasing operation, return step S4, carry out action repeatedly, up to carrying out the releasing operation first time from step S4 to step S8.
AF control has gradient (り is stepped on the mountain) AF mode and range finding AF mode, when using gradient mode AF control, shown in Figure 19 (A), AF control is only directly controlled image pickup optical system and is got final product, so utilize photographic optical system to carry out AF control (step S9-11) with deformable mirror A.Therefore, in gradient mode AF control procedure, in the testing process of promptly focusing, finder optical system is not switched on deformable mirror.This gradient mode AF control gradually changes from the infinity position towards extremely near direction in order to make object distance, and change photographic optical system with the shape of deformable mirror (use with shown in Figure 4 apply voltage curve corresponding apply voltage), the contrast value of the image that will photograph in each object distance stores, object distance when contrast is peak value is judged as focusing position, makes photographic optical system be the shape in described object distance focusing with deformable mirror A.Then, to finder optical system with deformable mirror C apply with described gradient mode AF control in be judged as the corresponding voltage or the electric current (corresponding Figure 12 or voltage curve or current curve shown in Figure 8) of object distance of focusing, carry out the AF control (step S9-12) of finder optical system with deformable mirror C.
On the other hand, when using distance measuring method AF control, shown in Figure 19 (B), utilize the output of the distance measuring sensor (not shown) that picture pick-up device (digital camera) has, inspected object distance (step S9-21) imposes on photographic optical system to the voltage corresponding to the object distance that is detected and carries out AF control (step S9-22) with deformable mirror A.Then, carry out AF control (step 9-23) imposing on finder optical system with deformable mirror C corresponding to the voltage of the object distance that is detected or electric current.Corresponding to the AF of the object distance that is detected control, concerning photographic optical system and finder optical system with deformable mirror in no particular order.
In the above-mentioned AF control, when the LCD of image-display units 28 is showing preview image, also need not use optical finder, so do not carry out the AF control action of finder optical system with deformable mirror.In addition, in the above-mentioned AF control, also can follow the correction of the focal shift of zoom adjustment with the AF control of deformable mirror C with finder optical system.
Above-mentioned AF control action one finishes, and returns main program once more, judges and whether has carried out releasing operation (step S10) for the second time, does not carry out the second time during releasing operation if be judged to be, and standby is up to carrying out this operation.If be judged to be when having carried out for the second time releasing operation, the record (step S12) of photographs is carried out in the action (step S11) of photographing.
Below, according to the flow chart of Figure 20, the diopter adjustment action of carrying out in the lump with zoom adjustment shown in Figure 13 and AF control is described.In the explanation that diopter is adjusted, front zoom adjustment and AF control action part shown in Figure 13 when having omitted power connection, but whether the operate condition of each unit such as inspection CPU is normal, carries out each unit is set at the initial treatment (step S21) of initial condition.Then, when not being photograph mode but playback mode, do not need to adjust diopter, so identical when adjusting with zoom, whether the acts of determination pattern is photograph mode (step S22), when being not photograph mode, changes playback process action (step S23) over to.
When pattern is photograph mode, because of the diopter adjusted value is the intrinsic value of each cameraman, so have or not the judgement (step S24) of diopter adjusted value last time, there is not last time during the diopter adjusted value, being envisioned for is when dispatching from the factory, so read in this case as the default value (for example-1diop) (step S25) shown in the No.1 of the table 1 of look-up table stores.Arranged during the diopter adjusted value last time, read diopter adjusted value last time (for example+1diop) (step S26) from No.2 as the table 1 of look-up table stores.Then, the initial setting (step S27) that comprises the deformable mirror C that the diopter corresponding with the above-mentioned diopter adjusted value of reading adjusted.In this initial setting zoom is made as wide-angle, object distance is made as 2m.
Table 1
| The storing value of diopter adjusted value (diop) | |
| NO.1 (default value) | -1 |
| NO.2 (last time) | +1 |
| NO.3 (value of depositing) | -3 |
| NO.4 (new value) | -1 |
Then, judge that the diopter adjusted value of reading when whether carrying out initial setting switches to the operation (step S28) of the diopter adjusted value (value of depositing of user's appointment) of other storages.When carrying out this handover operation, diopter is adjusted into the switching value (for example-3diop) (step S29) of the regulation shown in the No.3 of table 1.Then, judge the operation (step S30) of whether importing new diopter adjusted value.At the determination step S28 of described diopter adjusted value handover operation, when not carrying out the handover operation of diopter adjusted value, also carry out the acts of determination of input operation determination step S30.When importing the operation of new diopter adjusted value, utilize from the new input value of operating unit input and adjust diopter (step S31), new diopter adjusted value (for example-1diop) is stored among the No.4 of table 1 (step S32).Do not carry out the handover operation of diopter adjusted value, when not carrying out new input operation, keep initial set value yet.
Afterwards, change the right side flow chart over to from the left side flow chart, under photograph mode, when using electronic zoom and macroshot, be not suitable for using optical finder, so judge whether photograph mode is electronic zoom pattern (step S33), is judged to be when not being the electronic zoom pattern, takes a decision as to whether macroshot pattern (step S34).Be judged to be when being electronic zoom pattern and macroshot pattern, carry out the warning of inappropriate use optical finder,, deliberately be made as the state (step S35) that is difficult for watching so diopter is set at the abnormality that extremely departs from.The unusual diopter state of this moment, for example, relative standard diopter-1diop is about the 4diop that increases behind the 5diop (extreme long sight state), or-10diop about (extreme near-sighted state).In addition, also can utilize the step that takes a decision as to whether short distance (for example in the 1m) by range cells, replace above-mentioned macroshot mode decision step S34.
At above-mentioned electronic zoom mode decision step S33 and macroshot mode decision step S34, be judged to be the situation that is not electronic zoom pattern and macroshot pattern, comprise that having passed through unusual diopter sets step S35, the situation that these patterns have been disengaged, in this case, need revert to original state to diopter, so when the abnormality that diopter extremely departs from, revert to the action (step S36) of original setting diopter adjusted value.
Then, judge whether carried out releasing operation (step S37), when not carrying out releasing operation, return step S28, carry out action repeatedly, up to carrying out releasing operation from step S28 to step S36.After carrying out releasing operation, (step S38) photographs.Afterwards, judge whether carried out power-off operation (step S39), when not carrying out the power-off operation, return step S28, carry out action repeatedly, up to carrying out the power-off operation from step S28 to step S38.After carrying out the power-off operation, the diopter adjusted value of current (finally) is stored among the No.2 of table 1, finishes diopter adjustment action (step S40).
Like this, diopter adjusted value last time during power-off is stored, so during next energized, the diopter of view finder is set to the diopter adjusted value of being stored last time, can use at once.In the above-mentioned table 1, express diopter adjusted value of storage, but, also can store the diopter adjusted value that a plurality of cameramans use, diopter adjustment that like this can corresponding a plurality of cameramans as the value of depositing as the situation of the value of depositing.
Below, the 2nd execution mode is described.This execution mode replaces two deformable mirrors and uses a deformable mirror to constitute view finder shown in Figure 21 (A), (B), and other structures and the 1st execution mode shown in Figure 1 are basic identical.Figure 21 (A) is the front elevation of view finder, and Figure 21 (B) is its side view, gives same numeral to or corresponding components identical with the 1st execution mode shown in Figure 1.
The view finder unit 31 of this execution mode is by constituting with the lower part: object lens the 12, the 1st prism 32, field stop the 13, the 2nd prism 33, deformable mirror C, eyepiece 15 and by CPU control, drive the mirror drive device 17 of deformable mirror C.The incident light that passes through from object lens 12 incides the 1st prism 32, and reflection downwards, this reverberation incides the 2nd prism 33 by field stop 13 and is reflected, and this reverberation incides deformable mirror C, and this reverberation incides cameraman's pupil 19 by eyepiece 15.
This execution mode only uses a deformable mirror C, thus can not carry out zoom operation, but, can carry out focus adjustment (focus correction) and diopter adjustment by adjusting the deformed shape of deformable mirror C.As Fig. 8 or shown in Figure 12, the focus adjustment is to impose on the electric current (electromagnetic drive type) of deformable mirror C or shape that voltage (electrostatic) is adjusted the speculum main body realizes by adjustment.It is identical with the focus adjustment that diopter is adjusted, and is to adjust its shape by the curtage that adjustment imposes on deformable mirror C to realize.When Figure 22 (A), (B) expression use electrostatic deformable mirror, the focus adjusted value corresponding and the corresponding relation figure of diopter adjusted value with the deformed shape of deformable mirror C.State when Figure 22 (A) expression focus is near point position (20cm), the diopter+1diop after corresponding and other optical systems make up, the state when Figure 22 (B) expression focus is far point position (infinity), corresponding diopter-6diop.
Below, according to Figure 23 the 3rd execution mode is described.This execution mode uses a deformable mirror to constitute view finder, and can carry out zoom operation, other structures and shown in Figure 1 basic identical.Figure 23 represents the side view of view finder, gives same numeral to or corresponding components identical with the 1st execution mode shown in Figure 1.
The view finder 41 of this execution mode is by constituting with the lower part: the objective lens 44 that constitutes by incident concavees lens 42 and mobile lens group 43 and deformable mirror C, field stop the 13, the 3rd prism the 45, the 4th prism 46, eyepiece 15, by CPU control, be used to drive the lens driving unit 47 of mobile lens group 43 and by CPU mirror drive device 17 control, that be used to drive deformable mirror C.Incident light from incident concavees lens 42 pass through incides deformable mirror C by mobile lens group 43, and this reverberation is by field stop 13, and incides cameraman's pupil 19 by the 3rd prism 45 and the 4th prism 46 and eyepiece 15.
In this execution mode, utilize mobile lens group 43 to carry out the zoom ratio adjustment, and can utilize deformable mirror C, carry out focus correction and diopter adjustment by focus adjustment, zoom adjustment.As Fig. 8 or shown in Figure 12, with the focus correction that focus adjustment that utilizes deformable mirror C to carry out or zoom adjustment are accompanied, be to impose on the electric current (electromagnetic drive type) of deformable mirror C or shape that voltage (electrostatic) is adjusted the speculum main body realizes by adjustment.It is identical with the focus adjustment that diopter is adjusted, and is to adjust its shape by the curtage that adjustment imposes on deformable mirror C to realize.When Figure 24 (A), (B) expression use electrostatic deformable mirror C, the focus adjusted value corresponding and the corresponding relation figure of diopter adjusted value with the deformed shape of deformable mirror C.State when Figure 24 (A) expression focus is near point position (20cm), the diopter+1diop after corresponding and other optical systems make up, the state when Figure 24 (B) expression focus is far point position (infinity), corresponding diopter-6diop.
In above-mentioned the 3rd execution mode, when using the electrostatic speculum as deformable mirror A, the B of photographic optical system, from the time stagger the type of drive at intermittence when each deformable mirror applies the division driving of voltage and maintenance deformed shape can use the mode identical with the 1st execution mode.
Below, according to Figure 25 the 4th execution mode is described.This execution mode uses the view finder unit that is built-in with LCD to constitute the view finder unit, and other structures are identical with the 1st execution mode shown in Figure 1.Figure 25 represents the side view of view finder unit, gives same numeral to or corresponding components identical with the 1st execution mode shown in Figure 1.The view finder unit 51 of this execution mode is by constituting with the lower part: single the 52, the 3rd deformable mirror C of demonstration that is made of the LCD of the preview image that is used to show subject etc., eyepiece 15 and by the 3rd mirror drive device 17 CPU control, that drive deformable mirror C.
Like this in the view finder 51 of Gou Chenging, the preview image of the subject that is shown by display unit 52 incides deformable mirror C, and its reverberation incides cameraman's pupil 19 by eyepiece 15.The diopter adjustment of this view finder 51 is to realize by using the mirror drive device of being controlled by CPU 17 to adjust the curtage that imposes on deformable mirror C, when Figure 26 (A), (B) expression use electrostatic deformable mirror C, the corresponding relation figure of the deformed shape of deformable mirror C and diopter adjusted value.The shape of the deformable mirror C that Figure 26 (A) expression is corresponding with diopter+1diop after eyepiece 15 combinations, Figure 26 (B) expression and diopter-6diop corresponding shape.
As described in above execution mode, according to invention 1, according to memory cell institute canned data, carry out shape control to being used to adjust the dioptric deformable mirror of view finder, so can realize having the picture pick-up device that the band diopter is adjusted the view finder of function, this view finder can reliably be adjusted diopter effectively according to institute's canned data, and volume is little, little power consumption.According to the invention 2, can store the relevant information of the multiple shape of deformable mirror, thus can control make view finder the diopter adjustment corresponding to a plurality of cameramans.According to invention 3, by energized, carry out the diopter adjustment of view finder, so behind power connection, can enter the photography action at once according to institute's canned data.According to invention 4, when photographic pattern, carry out the diopter adjustment by the shape of control deformable mirror, so can reach effective power savings.According to invention 5, at non-power status, utilize deformable mirror that diopter is adjusted into standard diopter state, confirm unclear viewfinder image so when non-power status, also can observe.According to invention 6, use optical finder as view finder, can further reduce power consumption with low cost.According to invention 7, be used to adjust the focus that the dioptric deformable mirror of view finder also can be adjusted view finder, so, can observe and confirm more distinct image by adjusting the focus of view finder.
According to invention 8, view finder has a plurality of deformable mirrors, can carry out doubly adjusting corresponding change with the change of camera chain and doubly adjust, and confirms the angle of visual field change times image consistent with the angle of visual field of photographs so can observe with view finder.According to invention 9, the shape that constitutes a plurality of deformable mirrors of view finder is adjusted to opposite concavo-convex of direction respectively, so can enlarge the change multiple proportions of the change times image of view finder, can observe simultaneously and confirm the little change times image of aberration.According to invention 10, according to information by cell stores, the shape that is used to adjust dioptric deformable mirror is controlled, thus can realize according to institute's canned data adjust effectively reliably that diopter and volume are little, little power consumption possess the view finder that diopter is adjusted function.According to invention 11, at non-power status, utilize deformable mirror that diopter is adjusted into standard diopter state, so also can observe the view finder of confirming unclear image can realize non-power status the time.According to invention 12, the control deformable mirror, making the diopter when not using described view finder is the dioptric inappropriate diopter that is different from when using view finder, so can provide the warning of inappropriate use view finder.According to invention 13, after setting macro mode, photo distance is controlled to be inappropriate diopter to view finder in short-term behind the AF, so can effectively prevent to produce the photography of parallax.According to invention 14, when using the electronic zoom unit to photograph, view finder is controlled to be inappropriate diopter, so can effectively prevent the photography of generation difference between the view finder angle of visual field and the photography angle of visual field.
Claims (4)
1. one kind is used to observe the view finder of confirming image, it is characterized in that, have: deformable mirror, it has the reflecting surface that is caused distortion by energising, can adjust the diopter of described view finder by the change of shape of this reflecting surface, described view finder utilizes the reflector shape of the described deformable mirror under the non-power status, and making the diopter state is standard diopter state.
2. picture pick-up device, have and be used for the camera unit that image is photographed and be used to observe the view finder of confirming photographs, it is characterized in that, have: deformable mirror, it has the reflecting surface that is caused distortion by energising, can adjust the diopter of described view finder by the change of shape of this reflecting surface; With make this deformable mirror Deformation Control unit, this control unit is controlled described deformable mirror, when using described view finder, the diopter of described view finder is the dioptric inappropriate diopter that is different from when using view finder.
3. picture pick-up device as claimed in claim 2 is characterized in that described control unit is controlled, and when making photo distance short, the diopter of described view finder is described inappropriate diopter.
4. picture pick-up device as claimed in claim 2 is characterized in that described control unit is controlled, and makes when using the electronic zoom unit to photograph, and the diopter of described view finder is described inappropriate diopter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP288472/2002 | 2002-10-01 | ||
| JP2002288472A JP2004126101A (en) | 2002-10-01 | 2002-10-01 | Imaging equipment and finder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1497947A CN1497947A (en) | 2004-05-19 |
| CN1319367C true CN1319367C (en) | 2007-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101015218A Expired - Fee Related CN1319367C (en) | 2002-10-01 | 2003-10-01 | Photographic equipment and view finder |
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| Country | Link |
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| JP (1) | JP2004126101A (en) |
| CN (1) | CN1319367C (en) |
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| CN104931011A (en) * | 2015-06-11 | 2015-09-23 | 山东神戎电子股份有限公司 | Passive distance measuring method of infrared thermal imager |
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| US5694628A (en) * | 1995-05-31 | 1997-12-02 | Fuji Photo Film Co., Ltd. | View finder for camera |
| CN1166616A (en) * | 1995-05-30 | 1997-12-03 | 三星航空产业株式会社 | Variable magnification finder |
| US6437925B1 (en) * | 1998-06-30 | 2002-08-20 | Olympus Optical Co., Ltd. | Optical apparatus |
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2002
- 2002-10-01 JP JP2002288472A patent/JP2004126101A/en not_active Withdrawn
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2003
- 2003-10-01 CN CNB2003101015218A patent/CN1319367C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166616A (en) * | 1995-05-30 | 1997-12-03 | 三星航空产业株式会社 | Variable magnification finder |
| US5694628A (en) * | 1995-05-31 | 1997-12-02 | Fuji Photo Film Co., Ltd. | View finder for camera |
| US6437925B1 (en) * | 1998-06-30 | 2002-08-20 | Olympus Optical Co., Ltd. | Optical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004126101A (en) | 2004-04-22 |
| CN1497947A (en) | 2004-05-19 |
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