CN102928943A - Double-light-path aperture diaphragm and optical viewer applied to same - Google Patents
Double-light-path aperture diaphragm and optical viewer applied to same Download PDFInfo
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- CN102928943A CN102928943A CN2012104990393A CN201210499039A CN102928943A CN 102928943 A CN102928943 A CN 102928943A CN 2012104990393 A CN2012104990393 A CN 2012104990393A CN 201210499039 A CN201210499039 A CN 201210499039A CN 102928943 A CN102928943 A CN 102928943A
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- light path
- aperture diaphragm
- light
- path aperture
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Abstract
The invention discloses a double-light-path aperture diaphragm comprising a base and two driven rings which comprise diaphragm sheet groups of a plurality of diaphragm sheets and can drive the diaphragm sheets to rotate around the hinged points of the diaphragm sheets and the base. The double-light-path aperture diaphragm further comprises a driving ring with a rotary center which is located on the vertical equal division line of a rotary central connecting line of the two driven rings; the driving ring is provided with a light-transmitting ring; and one of the driving ring and the driven ring is internally provided with a first rotary slide groove and the other one is provided with a rotary shaft which is placed in the first rotary slide groove. Therefore, the distances from the rotary center of the driving ring to the rotary centers of the two driven rings are the same; the driving ring drives the two driven rings to rotate synchronously; the two driven rings drive the diaphragm sheets to rotate around the respective rotary center, so that the synchronous adjustment of two light path apertures is realized; and meanwhile, a double-light-path can obtain a greater field depth.
Description
Technical field
The present invention relates to the optical instrument technical field, particularly a kind of double light path aperture diaphragm.The invention still further relates to a kind of optical observation instrument that comprises above-mentioned double light path aperture diaphragm.
Background technology
Optical instrument is can produce light wave and show image, or accepts light wave and analyze, determine a quasi-instrument of some character.Optical instrument is the important tool of observation, test, analysis, control, record and transmission of information as very important composition classification in the instrument and meter industry.Optical instrument is indispensable in industrial and agricultural production, resources survey, scientific observation and various fields of recent life, especially is applied in the optical observation instrument of visible light technical field.
The optical observation instrument mainly is comprised of optical system, lens barrel and precision optical machinery parts etc., and wherein optical system mainly comprises object lens, image transferring lens, graduation mirror, eyepiece and aperture diaphragm etc.
The double light path aperture diaphragm cooperates double light path optical observation instrument to use, it is applied in the double beam system, although two light path apertures of this double light path aperture diaphragm are all variable, but because the adjusting in two light path apertures and asynchronous, need to progressively come to regulate respectively the light hurdle sheet group in two light path apertures, finally obtain needed light path aperture.Because two light path apertures of aperture diaphragm need progressively to regulate respectively, can not adjusted in concert, easily cause the not of uniform size of two light path apertures after the adjusting, affect imaging effect.
Therefore, how to realize the adjusted in concert in two light path apertures, make simultaneously double beam system obtain the larger depth of field, become the technical matters that those skilled in the art need to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of double light path aperture diaphragm, can realize the adjusted in concert in two light path apertures, make simultaneously double beam system obtain the larger depth of field.Another purpose of the present invention provides a kind of optical observation instrument that comprises above-mentioned double light path aperture diaphragm.
For achieving the above object, the invention provides a kind of double light path aperture diaphragm, comprise that pedestal, two include the light hurdle sheet group of a plurality of smooth hurdles sheet and can drive the driven torus that described smooth hurdle sheet rotates around the pin joint of described smooth hurdle sheet and described pedestal, comprise that also center of rotation is positioned at the active ring on the perpendicular bisector of center of rotation line of two described driven torus, described active ring is provided with light hole, one of them is provided with the first rotation chute described active ring and described driven torus, and another is provided with and is placed on the described first rotation axis that rotates in the chute.
Preferably, also comprise the driving lever that is fixed on the described active ring lateral surface.
Preferably, also comprise the spacing ring that fixes with described pedestal, described spacing ring is provided with the driving lever limit opening.
Preferably, also comprise change on the lateral surface that is fixed on described active ring.
Preferably, be provided with ridge design in the described change.
Preferably, the center of rotation of described active ring is vertical with the lower surface of described driven torus with the central plane that the center of rotation of two described driven torus forms.
Preferably, described light hole is two, and two described light holes lay respectively at the top of two described driven torus.
Preferably, be provided with the limited impression that the lateral surface with two described driven torus fits on the described pedestal.
Preferably, the number of the light hurdle sheet in the described smooth hurdle sheet group is ten.
A kind of optical observation instrument comprises the light path lens barrel and is fixed on double light path aperture diaphragm on the described light path lens barrel that described double light path aperture diaphragm is above-mentioned each described double light path aperture diaphragm.
In technique scheme, double light path aperture diaphragm provided by the invention, comprise pedestal, two light hurdle sheet group, driven torus and active rings that formed by a plurality of smooth hurdles sheet, initiatively ring is provided with light hole, driven torus can drive light hurdle sheet around the pin joint rotation of light hurdle sheet and pedestal, initiatively the center of rotation of ring is positioned on the perpendicular bisector of center of rotation line of two driven torus, and one is provided with the first rotation chute in active ring and the driven torus, and another is provided with and is placed on the first rotation axis that rotates in the chute.When needs were regulated light path aperture big or small, the moving driven torus of endless belt rotated by rotating initiatively, and driven torus drives light hurdle sheet and rotates, and finally obtains needed light path aperture, and the light in the light path hole that surrounds by light hurdle sheet all can pass through light hole.
By foregoing description as can be known, with respect to the above-mentioned background technology, in double light path aperture diaphragm provided by the invention, because initiatively the center of rotation of ring is positioned on the perpendicular bisector of two driven torus center of rotation lines, so initiatively the center of rotation of ring divides the distance of the center of rotation that is clipped to two driven torus to equate.When rotation initiatively encircled, the active ring can drive two driven torus and rotate synchronously, and two driven torus all drive light hurdle sheet and rotate around center of rotation separately, have realized the adjusted in concert in two light path apertures, can make the larger depth of field of double beam system acquisition simultaneously.
Description of drawings
The structural representation of the double light path aperture diaphragm that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the vertical view of double light path aperture diaphragm shown in Figure 1;
The perspective view of the double light path aperture diaphragm that Fig. 3 provides for the embodiment of the invention.
Wherein among Fig. 1-3:
1-change, 2-threaded fastener, 3-pedestal, 4-bearing pin, 5-light hurdle sheet, 6-initiatively encircle, 7-axle nail, 8-driven torus, 9-driving lever, 10-spacing ring.
Embodiment
Core of the present invention provides a kind of double light path aperture diaphragm, can realize the adjusted in concert in two light path apertures, makes simultaneously double beam system obtain the larger depth of field.Another core of the present invention provides a kind of optical observation instrument that comprises above-mentioned double light path aperture diaphragm.
In order to make those skilled in the art understand better technical scheme of the present invention, the present invention is described in further detail below in conjunction with drawings and embodiments.
Please refer to Fig. 1-3, in a kind of embodiment, double light path aperture diaphragm provided by the invention, comprise pedestal 3, two light hurdle sheet groups by a plurality of smooth hurdles sheet 5 compositions, driven torus 8 and initiatively encircle 6, initiatively encircle 6 and be provided with light hole, this light hole can be one, the light that passes the light path hole that is comprised of light hurdle sheet 5 all can pass light hole, pedestal 3 is fixed by screws on the light path lens barrel, the number of light hurdle sheet 5 can be eight in each light hurdle sheet group, nine, ten etc., the number of light hurdle sheet 5 is ten in preferred each the light hurdle sheet group of the present invention, light hurdle sheet 5 in two light hurdle sheet groups is respectively around the rounded even distribution of center of rotation separately, one end and the pedestal 3 of light hurdle sheet 5 are hinged, the other end is connected with bearing pin 4, wherein, bearing pin 4 one ends and light hurdle sheet 5 are rotationally connected, and the other end is arranged on second on the driven torus 8 and rotates in the chute.Pedestal 3 is provided with the annulus projection, and driven torus 8 is provided with the ring groove that matches with the annulus projection, initiatively encircles on the perpendicular bisector of line of center of rotation that 6 center of rotation is positioned at two driven torus 8.Initiatively encircle 6 and be provided with the first rotation chute, be provided with on the driven torus 8 simultaneously and be placed on the first rotation axis that rotates in the chute, or driven torus 8 is provided with first and rotates chute, initiatively encircles to be provided with on 6 to be placed on first and to rotate the interior rotation axis of chute, and rotation axis can follow closely 7 for axle, pin etc.
When needs are regulated light path aperture big or small, operating personnel rotate and initiatively encircle 6, initiatively encircling two driven torus 8 of 6 drives rotates synchronously, two driven torus 8 that rotate synchronously drive respectively two light hurdle sheets 5 in the light hurdle sheet group and rotate, the size in the light path aperture that is formed by light hurdle sheet 5 changes thereupon, thereby obtains the light path aperture that needs.
By foregoing description as can be known, initiatively encircle on the perpendicular bisector of line of center of rotation that 6 center of rotation is positioned at two driven torus 8, therefore, the distance of initiatively encircling the center of rotation of center of rotation to two driven torus 8 of 6 equates, initiatively encircling 6 drives simultaneously two driven torus 8 and rotates synchronously, driven torus 8 drives light hurdle sheet 5 and rotates synchronously, having solved needs operating personnel to regulate respectively two light path apertures, two problems that the light path pore size differs that cause, realized the adjusted in concert in two light path apertures, can make double beam system obtain the larger depth of field, imaging effect is better, and easy to operate.
On the other hand, according to the arrangement position of light hurdle sheet 5, when the number of light hurdle sheet 5 was ten, imaging effect was better.
Further, initiatively encircle on 6 the lateral surface and be provided with driving lever 9, when operating personnel need to regulate light path aperture big or small, direct rotating lever 9, driving lever 9 drives large rotating ring 6 and rotates, and finally drives light hurdle sheet 5 and rotates, and obtains the light path aperture of required size.Because being positioned at, driving lever 9 initiatively encircles on 6 the lateral surface, driving lever 9 apart from the distance of initiatively encircling 6 center of rotation than initiatively encircle 6 lateral surface apart from the center of rotation of initiatively encircling 6 apart from far away, therefore, stir the size that driving lever 9 can be regulated the light path aperture more accurately, and convenient operation.
Further, also be fixed with spacing ring 10 on the pedestal 3, spacing ring 10 can by bonding, rivet or be threaded etc. mode and pedestal 3 are fixing.And spacing ring 10 is provided with the driving lever limit opening, and driving lever 9 is positioned at the driving lever limit opening, and the position of driving lever limit opening is the position of light hurdle sheet 5 corresponding driving lever 9 when being rocked to two extreme positions.By the spacing ring 10 that is fixed with the driving lever limit opening, define the angle that light hurdle sheet 5 rotates, effectively solved light hurdle sheet 5 and turned to extreme position, and operating personnel cause the problem of light hurdle sheet 5 damages also at rotating lever 9.
In addition, be fixed with change 1 at the lateral surface that initiatively encircles 6, change 1 can by bonding or riveted joint with initiatively encircle 6 and fix, change 1 also can and initiatively encircle 6 and fix by threaded fastener 2, such as bolt, screw etc. makes things convenient for the dismounting of instrument, and operating personnel only need rotate change 1, just can realize the variation of light path pore size, thereby obtain needed light path aperture.
Preferably, the outside surface of change 1 is provided with ridge design, and ridge design can be vertically decorative pattern or oblique decorative pattern etc., between the two friction force when having increased by ridge design is set that the operator acts in the change 1, and the convenient operation personnel rotate change 1 more.
More preferably, be used for the recessed decorative pattern place that fixedly change 1 and the threaded fastener 2 that initiatively encircles 6 are positioned at ridge design, operating personnel avoid being subject to the impact of threaded fastener 2, more convenient operation when rotation change 1.
In addition, be provided with two limited impressions of placing respectively two driven torus 8 on the pedestal 3.Certainly in the case, the lateral surface of driven torus 8 is circular, and the inwall of the lateral surface of driven torus 8 and pedestal 3 upper limit grooves is fitted.The one-piece construction of double light path aperture diaphragm is comparatively compact, saves the space, has indirectly reduced production cost.
On the basis of the above, initiatively encircle 6 center of rotation vertical with the lower surface of driven torus 8 with the central plane that the center of rotation of two driven torus 8 forms.The mid point of the line of the center of rotation of two driven torus 8 and the line that initiatively encircles 6 center of rotation, move towards parallel with the integral body of light, initiatively encircle the close together of the center of rotation of two driven torus 8 of distance of rotate center of 6, further reduced the operating space, structure is compacter, simultaneously can guarantee that most of light enters operator's the visual field, improve observing effect.
Do not interfere with each other in order to make by the light in two light hurdle sheet groups, initiatively encircle 6 and be provided with two light holes, two light holes can lay respectively at the top of two driven torus 8, certainly, position relationship according to each parts, two light holes also can lay respectively at the below of two driven torus 8, and the size of light hole be for can make light hurdle sheet 5 when any position, and the light by the light path hole all can pass through light hole.
Certainly, two driven torus 8 are on the basis of the adjusted in concert that can finish two light path apertures, and its profile can be different.
Optical observation instrument provided by the present invention comprises above-mentioned a kind of double light path aperture diaphragm at least, and the structure of other parts can be with reference to prior art, and this paper repeats no more.
Above a kind of double light path aperture diaphragm provided by the present invention and applied optical observation instrument thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. double light path aperture diaphragm, comprise pedestal (3), two include the light hurdle sheet group of a plurality of smooth hurdle sheets (5) and can drive described smooth hurdle sheet (5) around the driven torus (8) of described smooth hurdle sheet (5) with the pin joint rotation of described pedestal (3), it is characterized in that, comprise that also center of rotation is positioned at the active ring (6) on the perpendicular bisector of center of rotation line of two described driven torus (8), described active ring (6) is provided with light hole, one of them is provided with the first rotation chute described active ring (6) and described driven torus (8), and another is provided with and is placed on the described first rotation axis that rotates in the chute.
2. double light path aperture diaphragm as claimed in claim 1 is characterized in that, also comprises the driving lever (9) that is fixed on described active ring (6) lateral surface.
3. double light path aperture diaphragm as claimed in claim 2 is characterized in that, also comprises the spacing ring (10) that fixes with described pedestal (3), and described spacing ring (10) is provided with the driving lever limit opening.
4. double light path aperture diaphragm as claimed in claim 1 is characterized in that, also comprises the change (1) on the lateral surface that is fixed on described active ring (6).
5. double light path aperture diaphragm as claimed in claim 4 is characterized in that, described change is provided with ridge design on (1).
6. double light path aperture diaphragm as claimed in claim 1 is characterized in that, the center of rotation of described active ring (6) is vertical with the lower surface of described driven torus (8) with the central plane that the center of rotation of two described driven torus (8) forms.
7. double light path aperture diaphragm as claimed in claim 1 is characterized in that, described light hole is two, and two described light holes lay respectively at the top of two described driven torus (8).
8. double light path aperture diaphragm as claimed in claim 1 is characterized in that, is provided with the limited impression that the lateral surface with two described driven torus (8) fits on the described pedestal (3).
9. such as each described double light path aperture diaphragm among the claim 1-8, it is characterized in that, the number of the light hurdle sheet (5) in the described smooth hurdle sheet group is ten.
10. optical observation instrument comprises the light path lens barrel and is fixed on double light path aperture diaphragm on the described light path lens barrel that it is characterized in that, described double light path aperture diaphragm is each described double light path aperture diaphragm among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499039.3A CN102928943B (en) | 2012-11-29 | 2012-11-29 | A kind of double light path aperture diaphragm and the optical viewing instrument applied thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499039.3A CN102928943B (en) | 2012-11-29 | 2012-11-29 | A kind of double light path aperture diaphragm and the optical viewing instrument applied thereof |
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| Publication Number | Publication Date |
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| CN102928943A true CN102928943A (en) | 2013-02-13 |
| CN102928943B CN102928943B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210499039.3A Active CN102928943B (en) | 2012-11-29 | 2012-11-29 | A kind of double light path aperture diaphragm and the optical viewing instrument applied thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190307664A (en) * | 1903-04-02 | 1904-02-04 | James Aitchison | Improvements relating to Binocular and like Glasses. |
| CN2067570U (en) * | 1989-09-13 | 1990-12-19 | 黄光智 | Aperture for case type ultraviolet sterilizer |
| US20060164731A1 (en) * | 2005-01-21 | 2006-07-27 | Shin-Tson Wu | Variable focus liquid lens |
| CN201013968Y (en) * | 2006-10-16 | 2008-01-30 | 彭江 | Wing-air linkage controlling valve |
-
2012
- 2012-11-29 CN CN201210499039.3A patent/CN102928943B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190307664A (en) * | 1903-04-02 | 1904-02-04 | James Aitchison | Improvements relating to Binocular and like Glasses. |
| CN2067570U (en) * | 1989-09-13 | 1990-12-19 | 黄光智 | Aperture for case type ultraviolet sterilizer |
| US20060164731A1 (en) * | 2005-01-21 | 2006-07-27 | Shin-Tson Wu | Variable focus liquid lens |
| CN201013968Y (en) * | 2006-10-16 | 2008-01-30 | 彭江 | Wing-air linkage controlling valve |
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| Publication number | Publication date |
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| CN102928943B (en) | 2015-10-21 |
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