CN101441305B - Glasses lens drive unit and lens module - Google Patents

Glasses lens drive unit and lens module Download PDF

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Publication number
CN101441305B
CN101441305B CN2007102025906A CN200710202590A CN101441305B CN 101441305 B CN101441305 B CN 101441305B CN 2007102025906 A CN2007102025906 A CN 2007102025906A CN 200710202590 A CN200710202590 A CN 200710202590A CN 101441305 B CN101441305 B CN 101441305B
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CN
China
Prior art keywords
bearing seat
load bearing
holder
fixed
camera lens
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Expired - Fee Related
Application number
CN2007102025906A
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Chinese (zh)
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CN101441305A (en
Inventor
张仁淙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Publication date
Application filed by Hongfujin Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Shenzhen Co Ltd
Priority to CN2007102025906A priority Critical patent/CN101441305B/en
Publication of CN101441305A publication Critical patent/CN101441305A/en
Application granted granted Critical
Publication of CN101441305B publication Critical patent/CN101441305B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a lens module, including a lens cone, a lens, a bearing seat, a fixing seat arranged oppositely to the bearing seat, a plurality of shape memory alloy wires and a plurality of elastic elements. The lens is fixed in the bearing seat. The fixing seat and the bearing seat are oppositely arranged and fixed in the lens cone. One end of each shape memory alloy wire is fixed on the bearing seat and thermally coupled with the resistor and the other end is fixed on the fixing seat. The resistor is connected with the external power source apparatus. One end of each elastic element is connected with the bearing seat and the other end is connected with the fixing seat. The lens driving unit has small volume and simple structure. The invention also relates to a lens driving unit.

Description

Glasses lens drive unit and camera lens module
Technical field
The present invention relates to a kind of glasses lens drive unit, especially relate to a kind of volume mirror glasses lens drive unit little, simple in structure and camera lens module.
Background technology
Along with the development of camera technique, the camera lens module is widely used in the camera head of various uses, and combining of camera lens module and various portable electron devices such as mobile phone, video camera, computer etc. obtains consumer's favor especially.
For taking the image of different amplification; The camera lens module requires to have zoom function usually and (sees also Zoom Lens Systems with Aspherical Plastic Lens; Consumer Electronics; IEEETransactions on Volume CE-33, Issue 3, Aug.1987 Page (s): 256-266).Thereby desire realizes that zoom function need drive in the camera lens module eyeglass and move so that the distance between the eyeglass changes the focal length of eyeglass combination is changed.
It generally is to realize the motion of eyeglass through drive motor gear set mechanism that the driving eyeglass is subjected to displacement.But adopt motor, gear to make the eyeglass driving mechanism high, thereby make the big and complex structure of camera lens module volume than complicacy and manufacture difficulty.
Summary of the invention
In view of this, provide a kind of volume glasses lens drive unit little, simple in structure and camera lens module real for necessary.
A kind of camera lens module; It comprises lens barrel, eyeglass, is contained in load bearing seat, holder, some shape memory allow wires and several flexible members in the lens barrel; Said load bearing seat is arranged in the said lens barrel versatilely, and said eyeglass is fixed in the said load bearing seat, and said holder and said load bearing seat are oppositely arranged and are fixed in the lens barrel; Said some shape memory allow wires and said several flexible members are distributed on the same circumference and are evenly spaced apart each other; One end of said each root shape memory allow wires is fixed on the said load bearing seat and with a resistance heat and is coupled, and the other end is fixed on the said holder, and said resistance links to each other with the external power source device; One end of said each flexible member links to each other with said load bearing seat, and the other end links to each other with said holder.
A kind of glasses lens drive unit; The holder, some shape memory allow wires and several flexible members that comprise load bearing seat, be oppositely arranged with said load bearing seat; Said some shape memory allow wires and said several flexible members are distributed on the same circumference and are evenly spaced apart each other; One end of said each root shape memory allow wires is fixed on the said load bearing seat and with a resistance heat and is coupled, and the other end is fixed on the said holder, and said resistance links to each other with the external power source device; One end of said each flexible member links to each other with said load bearing seat, and the other end links to each other with said holder.
Compared with prior art; Said glasses lens drive unit through shape memory allow wires alteration of form when the temperature variation performance and combine flexible member; Load bearing seat is applied certain function power; Be subjected to displacement thereby make load bearing seat be subjected to displacement the eyeglass of drive fixing on it, make that the volume of glasses lens drive unit is less, simple in structure, adopt the camera lens module volume of said glasses lens drive unit less.
Description of drawings
Fig. 1 is the synoptic diagram of first embodiment of the invention camera lens module, and this camera lens module comprises glasses lens drive unit.
Fig. 2 is the synoptic diagram of glasses lens drive unit among Fig. 1, and this driver element comprises load bearing seat and holder.
Fig. 3 is the floor map of load bearing seat among Fig. 2.
Fig. 4 is the floor map of holder among Fig. 2.
Fig. 5 is the synoptic diagram of second embodiment of the invention glasses lens drive unit.
Fig. 6 is the synoptic diagram of third embodiment of the invention glasses lens drive unit.
Fig. 7 is the synoptic diagram of fourth embodiment of the invention glasses lens drive unit.
Embodiment
A kind of camera lens module 100 as shown in Figure 1, that it provides for first embodiment of the invention.This camera lens module 100 comprises glasses lens drive unit 10, lens barrel 110, first eyeglass 120, retaining piece 130, microscope base 140 and CIS 150.
Driver element 10, first eyeglass 120, retaining piece 130 all are contained in the lens barrel 110, and CIS 150 is fixed in the microscope base 140.Subject is imaged on the CIS 150 through first eyeglass 120.
Lens barrel 110 has external thread, and microscope base 140 has the internal thread that matches with external thread, and lens barrel 110 moves up and down through being engaged in the microscope base 140 of internal and external screw thread.
Retaining piece 130 is a toroidal, and radial depressions is formed with groove 132.First eyeglass 120 glues together through a glue mode and is embedded in the groove 132, and retaining piece 130 glues together through a glue mode and is fixed on lens barrel 110 inwalls.
Please together consult Fig. 2 to Fig. 4; This lens driving unit 10 comprise second eyeglass 11, load bearing seat 12, spring 13, with load bearing seat 12 be relatively fixed seat 14, resistance 15 and shape memory allow wires 16 (shape memory alloys wire is hereinafter to be referred as the SMA line).
Load bearing seat 12 is a toroidal, its external diameter less than the internal diameter of lens barrel 110 so that its be arranged on versatilely in the lens barrel 110.Load bearing seat 12 radial depressions are formed with groove 121, the second eyeglasses 11 and glue together through a glue mode and be embedded in the groove 121.Load bearing seat 12 is provided with three first containing holes 122 that are used for holding resistance 15 and three towards the lower surface equal intervals of holder 14, and to be used for holding the 3rd containing hole 124, the three containing holes 124 and first containing hole 122 of spring 13 spaced apart.
Holder 14 is a toroidal, and it glues together through a glue mode and is fixed on lens barrel 110 inwalls.Holder 14 corresponding first containing hole 122, the 3rd containing hole 124 on the upper surface of load bearing seat 12 are respectively arranged with second containing hole 142, the 4th containing hole 144.
Have the space that ammunition feed spring 23 stretches between load bearing seat 12 and the holder 14, the distance between load bearing seat 12 and the holder 14 is preferably 0.1 millimeter (mm).
Resistance 15 is hollow structure, and it is contained in first containing hole 122 and with external power source (figure does not show) and links to each other.One end of SMA line 16 passes resistance 15 and is fixed on the load bearing seat 12, and the other end stretches into second containing hole 142 and is fixed on the holder 14.During original state (room temperature), spring 13 is elongated condition with SMA line 16, and at this moment, the combination of first eyeglass 120 and second eyeglass 11 has first focal length.
One end of spring 13 stretches into the 3rd containing hole 124 and glues together through a glue mode and be bonded on the load bearing seat 12, and the other end stretches into the 4th containing hole 144 and glues together through a glue mode and be bonded on the holder 14.
The material of SMA line 16 can be selected from the Ti-Ni alloy; Copper-base shape memory body alloy (like Cu-Zn-Al alloy, Cu-Zn-Ca alloy, Cu-Al-Ni alloy, Cu-Al-Be alloy, Cu-Al-Be alloy, Cu-Al-Mu alloy, Cu-Zn-Si alloy, Cu-Al-Te alloy etc.); Or iron-base shape memory body alloy (like Fe-Pt alloy, Fe-Pd alloy, Fe-Cr-Ni alloy, Fe-Ni-C alloy, Fe-Mn alloy, Fe-33Ni-10Co-4Ti alloy, Fe-32Mn-6Si alloy, Fe-28Mn-6Si-5Cr alloy, Fe-Cr-Ni-Co-Mn-Si alloy, Fe-Cr-Ni-Mn-Si alloy) etc., diameter is preferably 0.1 millimeter to 0.5 millimeter.
Before SMA line 16 is fixed, at first SMA line 16 is trained to make it carry out certain plastic yield (being elongated under the room temperature), when SMA line 16 was heated to uniform temperature, SMA line 16 can return to original form (parent phase), i.e. natural length like this; When temperature is reduced to room temperature, the shape when SMA line 16 can return to room temperature, i.e. elongated condition, the object that links to each other with SMA line 16 just can receive the effect of power.
When needs drove second eyeglass 11, external power source was to resistance 15 energisings, and the resistance 15 of energising produces heat; The heat that resistance 15 produces can make the temperature of SMA line 16 raise, and when temperature reached the deformation temperature of SMA line 16, SMA line 16 returned to natural length; Just can spur load bearing seat 12 drives second eyeglass 11 moves to the direction near holder 14; Spring 13 is compressed, and under the situation of the pulling force balance of the elastic force of the spring 13 that load bearing seat 12 receives and SMA line 16, load bearing seat 12 keeps motionless; At this moment, the combination of first eyeglass 120 and second eyeglass 11 has second focal length.
External power source stops resistance 15 energisings; The temperature of SMA line 16 reduces, and SMA line 16 returns to elongated condition, and spring 13 is stretched out and is state of nature; Load bearing seat 12 under the effect of elastic force away from holder 14, thereby make second eyeglass 11 move to direction away from holder 14.
The performance that load bearing seat 12 and second eyeglass 11 change by SMA line 16 temperature variation shapes also combines the effect of spring 13 to be subjected to displacement, thus make glasses lens drive unit 10 simple in structure, volume is little.Second eyeglass 11 changing between the effect of spring 13 and SMA line 16 and first eyeglass 120, thus make camera lens module 100 have the zoom purpose.
Certainly, spring 13 also can adopt imbed ejection formation (insert molding) mode and load bearing seat 12 or holder 14 one-body molded, then, glue together through a glue mode and to be bonded on holder 14 or the load bearing seat 12.
Glasses lens drive unit 20 as shown in Figure 5, that it provides for second embodiment of the invention.This glasses lens drive unit 20 comprises second eyeglass 11, load bearing seat 22, spring 13, holder 24, resistance 15 and SMA line 16.
The distribution situation of spring 13, SMA line 16 is identical with first embodiment, and three springs 13 and three SMA lines 16 are even, spaced apart.
Glasses lens drive unit 20 is with glasses lens drive unit 10 differences: an end of spring 13 directly is fixed on the load bearing seat 22, and the other end directly is fixed on the holder 24;
Resistance 15 is fixed on the load bearing seat 22, and an end of SMA line 16 passes resistance 15 and is fixed on the load bearing seat 22, and the other end directly is fixed on the holder 24.
Glasses lens drive unit 30 as shown in Figure 6, that it provides for third embodiment of the invention.This glasses lens drive unit 20 comprises second eyeglass 11, load bearing seat 32, spring 13, holder 34, resistance 15 and SMA line 16.
The distribution situation of spring 13, SMA line 16 is identical with first embodiment, and three springs 13 and three SMA lines 16 are even, spaced apart.
Glasses lens drive unit 30 is with glasses lens drive unit 20 differences:
Load bearing seat 32 equal intervals are provided with three first containing holes 322; Resistance 15 is fixed in first containing hole 322; Corresponding first containing hole 322 is provided with three second containing holes 342 on the holder 34; One end of SMA line 16 passes resistance 15 and is fixed on the load bearing seat 32, and the other end stretches into second containing hole 342 and directly is fixed on the holder 24;
One end of spring 13 directly is fixed on the load bearing seat 32, and the other end directly is fixed on the holder 34.
Glasses lens drive unit 40 as shown in Figure 7, that it provides for fourth embodiment of the invention.This glasses lens drive unit 40 comprises second eyeglass 11, load bearing seat 42, elastic sheet metal 43, holder 44, resistance 15 and SMA line 16.
The distribution situation of elastic sheet metal 43, SMA line 16 is identical with first embodiment, and three elastic sheet metals 43 and three SMA lines 16 are even, spaced apart.
Glasses lens drive unit 40 is with glasses lens drive unit 20 differences:
Load bearing seat 42 equidistantly is provided with three the 3rd containing holes 424; Corresponding the 3rd containing hole 424 is provided with three the 4th containing holes 444 on the holder 44; One end of elastic sheet metal 43 stretches into the 3rd containing hole 424 and glues together through a glue mode and be bonded on the load bearing seat 42, and the other end stretches into the 4th containing hole 444 and glues together through a glue mode and be bonded on the holder 44;
Resistance 15 directly is fixed on the load bearing seat 42, and an end of SMA line 16 passes resistance 15 and is fixed on the load bearing seat 42, and the other end directly is fixed on the holder 44.
Certainly, elastic sheet metal 43 also can adopt imbed injection molding method and load bearing seat 42 or holder 44 one-body molded, then, glue together through a glue mode and to be bonded on holder 44 or the load bearing seat 42.
It is understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion, and all these changes and distortion all should belong to the protection domain of claim of the present invention according to technical scheme of the present invention and technical conceive.

Claims (11)

1. camera lens module; It comprises lens barrel, eyeglass, it is characterized in that: further comprise the load bearing seat, holder, some shape memory allow wires and several flexible members that are contained in the lens barrel, said load bearing seat is arranged in the said lens barrel versatilely; Said eyeglass is fixed in the said load bearing seat; Said holder and said load bearing seat are oppositely arranged and are fixed in the lens barrel, and said if be distributed on the same circumference and evenly spaced apart each other in root shape memory allow wires and said several flexible members, an end of said each root shape memory allow wires is fixed on the said load bearing seat and with a resistance heat and is coupled; The other end is fixed on the said holder; Said resistance links to each other with the external power source device, and an end of said each flexible member links to each other with said load bearing seat, and the other end links to each other with said holder.
2. camera lens module as claimed in claim 1 is characterized in that: said resistance is hollow structure, and said shape memory allow wires is passed resistance and is fixed on the said load bearing seat.
3. camera lens module as claimed in claim 2 is characterized in that: said load bearing seat is provided with first containing hole, and said resistance is arranged in said first containing hole.
4. camera lens module as claimed in claim 3 is characterized in that: said holder is provided with second containing hole, and the other end of said shape memory allow wires stretches into second containing hole and is fixed on the said holder.
5. like claim 3 or 4 described camera lens modules, it is characterized in that: said load bearing seat is provided with the 3rd containing hole, and an end of said flexible member stretches into said the 3rd containing hole and is fixed on the said load bearing seat.
6. camera lens module as claimed in claim 5 is characterized in that: said holder is provided with the 4th containing hole, and the other end of said flexible member stretches into said the 4th containing hole and is fixed on the said holder.
7. camera lens module as claimed in claim 1 is characterized in that: said flexible member is spring or elastic sheet metal.
8. camera lens module as claimed in claim 1 is characterized in that: the maximum spacing between said load bearing seat and the holder be 0.1 millimeter so that the activity space of said flexible member to be provided.
9. camera lens module as claimed in claim 1 is characterized in that: flexible member and said load bearing seat or holder are that the flush type ejaculation is made of one piece.
10. camera lens module as claimed in claim 1 is characterized in that: further comprise microscope base, said lens barrel is contained in the said microscope base through threaded engagement.
11. glasses lens drive unit; It is characterized in that: the holder, some shape memory allow wires and several flexible members that comprise load bearing seat, be oppositely arranged with said load bearing seat; Said some shape memory allow wires and said several flexible members are distributed on the same circumference and are evenly spaced apart each other; One end of said each root shape memory allow wires is fixed on the said load bearing seat and with a resistance heat and is coupled, and the other end is fixed on the said holder, and said resistance links to each other with the external power source device; One end of said each flexible member links to each other with said load bearing seat, and the other end links to each other with said holder.
CN2007102025906A 2007-11-19 2007-11-19 Glasses lens drive unit and lens module Expired - Fee Related CN101441305B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2007102025906A CN101441305B (en) 2007-11-19 2007-11-19 Glasses lens drive unit and lens module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007102025906A CN101441305B (en) 2007-11-19 2007-11-19 Glasses lens drive unit and lens module

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CN101441305A CN101441305A (en) 2009-05-27
CN101441305B true CN101441305B (en) 2012-05-16

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KR101044219B1 (en) * 2009-10-19 2011-06-29 삼성전기주식회사 Lens actuating module
CN108333709B (en) * 2018-03-27 2020-10-23 瑞声光学解决方案私人有限公司 Lens driving device
CN108508566B (en) * 2018-03-27 2021-07-30 瑞声光学解决方案私人有限公司 Lens driving device
CN108737708B (en) * 2018-08-07 2024-03-05 宁波舜宇光电信息有限公司 Camera module and power line arrangement method thereof
WO2020258233A1 (en) * 2019-06-28 2020-12-30 瑞声光学解决方案私人有限公司 Lens module and electronic device
CN110913099B (en) * 2019-10-28 2021-09-07 华为技术有限公司 Camera module and terminal
CN114666461B (en) * 2020-12-22 2023-08-29 宁波舜宇光电信息有限公司 Telescopic camera module and electronic equipment
CN112748508B (en) * 2021-01-20 2023-08-08 南昌欧菲光电技术有限公司 Lens driving device, imaging device, and electronic apparatus
CN113114880B (en) * 2021-03-19 2022-12-27 维沃移动通信有限公司 Camera module and electronic equipment
CN113484969B (en) * 2021-06-23 2022-05-20 广东海德亚科技有限公司 SMA wire drive structure, closed-loop control method thereof and electronic equipment
CN113568131B (en) * 2021-07-29 2022-05-13 上海信迈电子科技有限公司 Lens driving device, camera device and mobile terminal

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