CN101303446A - Optimized zoom lens gear wheel drive module and zoom lens using the module - Google Patents
Optimized zoom lens gear wheel drive module and zoom lens using the module Download PDFInfo
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- CN101303446A CN101303446A CNA2007101017457A CN200710101745A CN101303446A CN 101303446 A CN101303446 A CN 101303446A CN A2007101017457 A CNA2007101017457 A CN A2007101017457A CN 200710101745 A CN200710101745 A CN 200710101745A CN 101303446 A CN101303446 A CN 101303446A
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- zoom lens
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Abstract
The invention provides a gear driving module for a zoom lens, which is used for driving the lens barrel of the zoom lens. The gear driving model comprises a power module, a driving gear and a driven differential gear set, wherein, the power module is provided with a power output end; the driving gear is pivoted on the power output end; the driven differential gear set comprises less than 3 differential gears and is arranged between the driving gear and the lens barrel; the driven differential gear set and the driving gear are rotatably embedded with each other and are rotatably connected with the lens barrel of the zoom lens by a connecting gear; when the driven differential gear set is driven by the driving gear to rotate the connecting gear, the lens barrel rotates together with the rotating of the lens barrel at the same time.
Description
Technical field
The present invention relates to a kind of zoom lens gear wheel drive module; Particularly, the present invention relates to a kind of optimized zoom lens gear wheel drive module and use the zoom lens of this module, use minimum gear mesh to reach high reduction gear ratio, so that camera lens stretching speed faster to be provided.
Background technology
The gear part of pulley teeth wheels is made up of gear wheel and pinion wheel, except that transmitting strength, the chimeric each other gear ratio of forming of gear of different sizes is with the relation that makes that stroke distances that is input into pulley and the protruding axle rotational travel of exporting at last become a multiple to reduce; And the size of each wheel of suitable adjustment and protruding shaft diameter can obtain a suitable reduction gear ratio.Generally under identical reduction gear ratio required, the gear set of use was few more, can reach the fast demand of reaction velocity more.Along with electronic digit product now gradually towards compact design concept development, use few more drive gear set to reach the requirement of equal or higher reduction gear ratio, will help to implement this design concept, and can suit consumer's use needs.
The general employed drive gear set of zoom lens, its gear logarithm all surpasses 6 groups.Drive gear set as shown in Figure 1a, it comprises PTO 20 and 7 groups of gear mesh, and chimeric each other institute forms by gear on worm 30, first gear 41, second gear 42, the 3rd gear 43, the 4th gear 44, the 5th gear 45, connection gear 50 and ring-type tooth bar 61.Drive gear set shown in Fig. 1 b, it comprises PTO 20 and 6 groups of gear mesh, chimeric each other institute forms by gear on worm 30, first gear 41, second gear 42, the 3rd gear 43, the 4th gear 44, connection gear 50 and ring-type tooth bar 61.Aforesaid drive gear set is used more gear, and the flexible speed of camera lens still has the space of further improvement.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of optimized zoom lens gear wheel drive module, and it uses less gear mesh so that camera lens stretching speed faster to be provided.
Another object of the present invention is to provide a kind of zoom lens gear wheel drive module, comprise 3, under similar reduction gear ratio, provide camera lens stretching speed faster with interior differential gear.
Another object of the present invention is to provide a kind of zoom lens, the use of the optimized gear wheel drive module of arranging in pairs or groups has stretching speed faster.
Zoom lens gear wheel drive module of the present invention is used to drive the lens barrel of zoom lens, comprises power plant module, driven wheel and driven differential gear set.Wherein power plant module has clutch end, driven wheel then is articulated on the clutch end, driven differential gear set comprises 3 with interior differential gear, it is arranged between driven wheel and the lens barrel, driven differential gear set and driven wheel are embedding mutually rotationally each other, and link to each other rotationally with Zoom lens barrel by connection gear.When driven differential gear set is subjected to the driving of driven wheel and the gear that is rotatably connected, lens barrel is subjected to the interlock of connection gear and rotates simultaneously.
In a preferred embodiment, described driven wheel is a gear on worm.
In a preferred embodiment, the number of teeth of described gear on worm is not less than 2 teeth.
In a preferred embodiment, driven differential gear set comprises first gear, second gear and the 3rd gear.Wherein, first gear is chimeric with driven wheel rotationally, and further radially extends to form coaxial first stud gear, and the ratio of the number of teeth of first stud gear and the first gear number of teeth is not less than 0.38; Second gear is chimeric with first stud gear rotationally, and further radially extends to form coaxial second stud gear, and the ratio of the number of teeth of second stud gear and the second gear number of teeth is not less than 0.391; The 3rd gear is chimeric with second stud gear rotationally, and further radially extends to form the 3rd coaxial speed gear, and chimeric rotationally with connection gear, the ratio of the number of teeth of the 3rd speed gear and the 3rd gear number of teeth is not less than 0.275; By the suitable deceleration ratio that driven differential gear set can provide, zoom lens gear wheel drive module of the present invention can provide camera lens stretching speed faster under similar reduction gear ratio demand.
In a preferred embodiment, the number of teeth of described first stud gear is selected between 7 tooth to 12 teeth.
In a preferred embodiment, the number of teeth of described second gear is selected between 20 tooth to 30 teeth.
In a preferred embodiment, the number of teeth of described second stud gear is selected between 7 tooth to 12 teeth.
In a preferred embodiment, the number of teeth of described the 3rd gear is selected between 20 tooth to 35 teeth.
In a preferred embodiment, the number of teeth of described the 3rd speed gear is selected between 7 tooth to 12 teeth.
In a preferred embodiment, the number of teeth of described connection gear is selected between 10 tooth to 20 teeth.
In a preferred embodiment, the ratio of the described driven wheel and the described first gear number of teeth is not less than 0.095.
In a preferred embodiment, the ratio of the described first stud gear and the described second gear number of teeth is not less than 0.348.
In a preferred embodiment, the ratio of the described second stud gear and described the 3rd gear number of teeth is not less than 0.31.
In a preferred embodiment, the ratio of described the 3rd speed gear and the described connection gear number of teeth is not less than 0.571.
In a preferred embodiment, the ratio of the described connection gear and the described ring-type tooth bar number of teeth is not less than 0.152.
The invention provides a kind of zoom lens, comprise: lens barrel, have the ring-type tooth bar, it is formed at the outside surface of described lens barrel; PTO has transmission shaft, is connected with gear on worm; First driven wheel, has first stud gear, itself and the coaxial setting of described first driven wheel, wherein said first driven wheel and the embedding mutually rotationally of described gear on worm, the ratio of the number of teeth of described gear on worm and the described first driven wheel number of teeth is not less than 0.095; Second driven wheel, has second stud gear, itself and the coaxial setting of described second driven wheel, wherein said second driven wheel and the embedding mutually rotationally of described first stud gear, the ratio of the number of teeth of described first stud gear and the described second driven wheel number of teeth is not less than 0.348; The 3rd driven wheel, has the 3rd speed gear, itself and the coaxial setting of described the 3rd driven wheel, wherein said the 3rd driven wheel and the embedding mutually rotationally of described second stud gear, the ratio of the number of teeth of described second stud gear and described the 3rd driven wheel number of teeth is not less than 0.31; And connection gear, linking to each other rotationally each other with described the 3rd speed gear and described ring-type tooth bar, the ratio of the number of teeth of wherein said the 3rd speed gear and the described connection gear number of teeth is not less than 0.571; Wherein, when the user started described PTO, described lens barrel was subjected to the common driving of described gear on worm, described first driven wheel, described second driven wheel, the 3rd driven wheel and described connection gear and opens.
In a preferred embodiment, described first driven wheel is a cross helical gear.
Description of drawings
Fig. 1 a is depicted as existing zoom lens gear wheel drive module;
Fig. 1 b is depicted as existing zoom lens gear wheel drive module;
Figure 2 shows that the combination stereogram of zoom lens gear wheel drive module of the present invention;
Figure 3 shows that the front view of zoom lens gear wheel drive module of the present invention;
Figure 4 shows that the vertical view of zoom lens gear wheel drive module of the present invention;
Figure 5 shows that the assembly exploded view of zoom lens gear wheel drive module of the present invention and zoom lens;
Figure 6 shows that the assembly decomposition side view of zoom lens gear wheel drive module of the present invention and zoom lens.
Embodiment
The invention provides a kind of optimized zoom lens gear wheel drive module, use less gear mesh so that camera lens stretching speed faster to be provided.Zoom lens gear wheel drive module of the present invention preferably by reducing the gear number of differential gear set, reaching zoom lens stretching speed faster, and helps to implement the compact design concept of Modern Electronic digital product.Zoom lens gear wheel drive module of the present invention preferably includes 3 with interior differential gear, under similar reduction gear ratio, provides camera lens stretching speed faster.Zoom lens gear wheel drive module of the present invention is preferred for being mounted with the camera that drives lens barrel, as digital camera or traditional optical camera etc.Yet in different embodiment, zoom lens gear wheel drive module of the present invention also is used applicable to eyes structure camera or with other device to be driven such as view finder unit etc. in the camera.
Figure 2 shows that zoom lens gear wheel drive module of the present invention and use a preferred embodiment of the zoom lens of this module.As shown in Figure 2, zoom lens gear wheel drive module of the present invention preferably is used with lens barrel 600, comprises power plant module 200, driven wheel 300, driven differential gear set 400 and connection gear 500.Shown in the preferred embodiment of Fig. 2 and Fig. 3, lens barrel 600 has outside surface 620 and ring-type tooth bar 610, and ring-type tooth bar 610 is around the part outside surface 620 that is arranged at lens barrel 600, and links to each other rotationally with connection gear 500.Said herein part outside surface 620 is meant the ring-type tooth bar 610 of a side that is formed at lens barrel 600 outside surfaces 620, and is provided with at the part circumferential surface of this side ring around lens barrel 600.
As shown in Figures 2 and 3, ring-type tooth bar 610 preferably forms the crown of projection at outside surface 620, and around 1/2 circumferential surface that is arranged on lens barrel 600 between the quarter turn surface, make lens barrel 600 be subjected to the drive of gear wheel drive module and rotate, and the track (indicating) that cooperates lens barrel 600 inner edges is to open camera lens.Yet in different embodiment, ring-type tooth bar 610 also can be at 1/2 circumferential surface of lens barrel 600 to the teeth groove that forms indent between the quarter turn surface, and links to each other rotationally with connection gear 500.In addition, in other different embodiment, no matter the form of ring-type tooth bar 610 is the crown of projection or the teeth groove of indent, all can be around the whole outside surfaces 620 that are arranged at lens barrel 600.As shown in Figures 2 and 3, connection gear 500 preferably links to each other rotationally with the ring-type tooth bar 610 that is formed at lens barrel 600 outside surfaces 620, the number of teeth of ring-type tooth bar 610 is selected between 20 tooth to 100 teeth, and the number of teeth of connection gear 500 is selected between 10 tooth to 20 teeth, and connection gear 500 is not less than 0.152 with the ratio of the number of teeth of ring-type tooth bar 610.
Shown in the preferred embodiment of Fig. 3, zoom lens gear wheel drive module of the present invention comprises power plant module 200, has clutch end 210.Said herein power plant module 200 is meant the PTO as motor etc., 210 transmission shafts that refer to PTO of clutch end.As shown in Figure 3, power plant module 200 preferably includes the small-sized or micro motor that possesses high torsion, for example part direct current (DC) motor or ultrasonic (USM) motor, however in different embodiment, power plant module 200 also can comprise and uses arc (AFD) motor or other that motor of high torsion can be provided.As shown in Figure 3, in the preferred embodiment, driven wheel 300 is articulated in clutch end 210, links to each other rotationally with driven differential gear set 400, and driven wheel 300 is by the power output of power plant module 200, to drive driven differential gear set 400.As shown in Figure 3, driven wheel 300 is gear on worm preferably, and wherein the number of teeth of gear on worm is not less than 2 teeth.
Shown in the preferred embodiment of Fig. 3 and Fig. 4, driven differential gear set 400 comprises 3 with interior differential gear, is arranged between driven wheel 300 and the lens barrel 600.As shown in Figures 3 and 4, driven differential gear set 400 links to each other with lens barrel 600 rotationally by connection gear 500, when clutch end 210 rotational driving gears 300, driven differential gear set 400 is subjected to the driving of driven wheel 300 and the gear 500 that is rotatably connected, and lens barrel 600 was subjected to the interlock of connection gear 500 and rotated simultaneously this moment.Shown in the preferred embodiment of Fig. 3 and Fig. 4, driven differential gear set 400 and driven wheel 300 are embedding mutually rotationally each other, comprise first gear 410, second gear 420 and the 3rd gear 430.As Fig. 5 and shown in Figure 6, first gear 410 is chimeric with driven wheel 300 rotationally, and first gear 410 further extends to form first stud gears 411 coaxial but that diameter is different vertically.In the preferred embodiment, the number of teeth of first gear 410 is selected between 15 tooth to 30 teeth, and the number of teeth of first stud gear 411 is selected between 7 tooth to 12 teeth, and wherein the ratio of the number of teeth of first stud gear 411 and first gear, 410 numbers of teeth is not less than 0.38.As Fig. 5 and shown in Figure 6, first gear 410 is cross helical gear preferably, has the twill crown that is formed at the cross helical gear outside surface, and with the screw thread crown embedding mutually rotationally on gear on worm 300 surfaces.In the preferred embodiment, the number of teeth of driven wheel 300 is not less than 2 teeth, and the ratio of the number of teeth of driven wheel 300 and first gear, 410 numbers of teeth is not less than 0.095.
As Fig. 5 and shown in Figure 6, second gear 420 is preferably chimeric with first stud gear 411 rotationally.In the preferred embodiment, the number of teeth of second gear 420 is selected between 20 tooth to 30 teeth, and the ratio of the first stud gear 411 and second gear, 420 numbers of teeth is not less than 0.348.Shown in the preferred embodiment of Fig. 5 and Fig. 6, second gear 420 further extends vertically, forms second stud gear 421 coaxial but that diameter is less.In the preferred embodiment, the number of teeth of second stud gear 421 is selected between 7 tooth to 12 teeth, and wherein the ratio of the number of teeth of second stud gear 421 and second gear, 420 numbers of teeth is not less than 0.391.
As Fig. 5 and shown in Figure 6, the 3rd gear 430 is preferably chimeric with second stud gear 421 rotationally.In the preferred embodiment, the number of teeth of the 3rd gear 430 is selected between 20 tooth to 35 teeth, and the ratio of the second stud gear 421 and the 3rd gear 430 numbers of teeth is not less than 0.31.Shown in the preferred embodiment of Fig. 5 and Fig. 6, the 3rd gear 430 further extends vertically, forms the 3rd speed gear 431 coaxial but that diameter is less, and chimeric rotationally with connection gear 500.As Fig. 5 and shown in Figure 6, in the preferred embodiment, the number of teeth of the 3rd speed gear 431 is selected between 7 tooth to 12 teeth, the 3rd speed gear 431 is not less than 0.571 with the ratio of connection gear 500 numbers of teeth, and the ratio of the number of teeth of the 3rd speed gear 431 and the 3rd gear 430 numbers of teeth is not less than 0.275.
The present invention provides a kind of zoom lens simultaneously, comprises lens barrel 600, connection gear 500, the 3rd driven wheel 430, second driven wheel 420, first driven wheel 410 and PTO 200.Shown in the preferred embodiment of Fig. 5 and Fig. 6, lens barrel 600 has the ring-type tooth bar 610 of the outside surface 620 that is formed at lens barrel 600, first driven wheel 410 links to each other with PTO 200 rotationally by gear on worm 300, wherein when the user started PTO, lens barrel 600 was opened with the common driving of connection gear 500 by gear on worm 300, first driven wheel 410, second driven wheel 420, the 3rd driven wheel 430.In as Fig. 5 and preferred embodiment shown in Figure 6, zoom lens comprises PTO 200, has transmission shaft 210, is connected with gear on worm 300, when clutch end 210 rotary worm gears 300, first driven wheel 410 is subjected to the driving of gear on worm 300 and rotates.As Fig. 5 and shown in Figure 6, first driven wheel 410 is cross helical gear preferably, has the twill crown of the outside surface that is formed at cross helical gear, with the screw thread crown embedding mutually rotationally on gear on worm 300 surfaces.
Shown in the preferred embodiment of Fig. 5 and Fig. 6, first driven wheel 410 has first stud gear 411 and the 410 coaxial settings of first driven wheel, wherein first driven wheel 410 and gear on worm 300 embedding mutually rotationally, the ratio of the number of teeth of gear on worm 300 and first driven wheel, 410 numbers of teeth is not less than 0.095.Shown in the preferred embodiment of Fig. 5 and Fig. 6, second driven wheel 420 has second stud gear 421 and the 420 coaxial settings of second driven wheel, wherein second driven wheel 420 and first stud gear 411 embedding mutually rotationally, the ratio of the number of teeth of first stud gear 411 and second driven wheel, 420 numbers of teeth is not less than 0.348.Shown in the preferred embodiment of Fig. 5 and Fig. 6, the 3rd driven wheel 430 has the 3rd speed gear 431 and the 430 coaxial settings of the 3rd driven wheel, wherein the 3rd driven wheel 430 and second stud gear 421 embedding mutually rotationally, the ratio of the number of teeth of second stud gear 421 and the 3rd driven wheel 430 numbers of teeth is not less than 0.31.
Shown in the preferred embodiment of Fig. 5 and Fig. 6, connection gear 500 links to each other each other rotationally with the 3rd speed gear 431 and ring-type tooth bar 620, wherein the ratio of the number of teeth of the 3rd speed gear 431 and connection gear 500 numbers of teeth is not less than 0.571, when the user turned on the power output unit 200, lens barrel 600 rotated by gear on worm 300 that first driven wheel 410 drives second driven wheel 420, the 3rd driven wheel 430 rotates simultaneously with connection gear 500 and opens camera lens.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, be contained in the modification of the spirit of claim and scope and be equal to replacement and all be contained in the scope of the present invention.
The primary clustering symbol description
[having now]
20 PTO, 30 gears on worm
41 first gears, 42 second gears
43 the 3rd gears 44 the 4th gear
45 the 5th gears 50 connect gear
61 ring-type tooth bars
[the present invention]
200 power plant modules, PTO
210 clutch ends, transmission shaft
300 driven wheels, gear on worm
400 driven differential gear set
410 first gears, first driven wheel, cross helical gear
411 first stud gears
420 second gears, second driven wheel, 421 second stud gears
430 the 3rd gears, the 3rd driven wheel 431 the 3rd speed gear
500 connection gear, 600 lens barrels
610 ring-type tooth bars, 620 outside surfaces
Claims (10)
1. a zoom lens gear wheel drive module is used for being used with lens barrel, comprising:
Power plant module has clutch end;
Driven wheel is articulated in described clutch end; And
Driven differential gear set, comprise 3 with interior differential gear, it is arranged between described driven wheel and the described lens barrel, and wherein said driven differential gear set and described driven wheel are embedding mutually rotationally each other, and links to each other rotationally with described lens barrel by connection gear;
Wherein, when described driven differential gear set is subjected to the driving of described driven wheel and rotates described connection gear, described lens barrel is subjected to the interlock of described connection gear and rotates simultaneously.
2. zoom lens gear wheel drive module according to claim 1, wherein said driven wheel is a gear on worm.
3. zoom lens gear wheel drive module according to claim 2, the number of teeth of wherein said gear on worm is not less than 2 teeth.
4. zoom lens gear wheel drive module according to claim 1, wherein said driven differential gear set comprises:
First gear, described first gear is chimeric with described driven wheel rotationally, wherein said first gear further radially extends to form coaxial first stud gear, and the ratio of the number of teeth of described first stud gear and the described first gear number of teeth is not less than 0.38;
Second gear, described second gear is chimeric with described first stud gear rotationally, wherein said second gear further radially extends to form coaxial second stud gear, and the ratio of the number of teeth of described second stud gear and the described second gear number of teeth is not less than 0.391; And
The 3rd gear, described the 3rd gear is chimeric with described second stud gear rotationally, wherein said the 3rd gear further radially extends to form the 3rd coaxial speed gear, chimeric rotationally with described connection gear, the ratio of the number of teeth of described the 3rd speed gear and described the 3rd gear number of teeth is not less than 0.275.
Wherein, described connection gear further links to each other rotationally with the ring-type tooth bar that is formed at described lens barrel surface.
5. zoom lens gear wheel drive module according to claim 4, the number of teeth of wherein said ring-type tooth bar are selected between 20 tooth to 100 teeth.
6. zoom lens gear wheel drive module according to claim 4, wherein said first gear is a cross helical gear.
7. zoom lens gear wheel drive module according to claim 6, the number of teeth of wherein said cross helical gear are selected between 15 tooth to 30 teeth.
8. zoom lens gear wheel drive module according to claim 4, the ratio of the wherein said connection gear and the described ring-type tooth bar number of teeth is not less than 0.152.
9. zoom lens comprises:
Lens barrel has the ring-type tooth bar, and it is formed at the outside surface of described lens barrel;
PTO has transmission shaft, is connected with gear on worm;
First driven wheel, has first stud gear, itself and the coaxial setting of described first driven wheel, wherein said first driven wheel and the embedding mutually rotationally of described gear on worm, the ratio of the number of teeth of described gear on worm and the described first driven wheel number of teeth is not less than 0.095;
Second driven wheel, has second stud gear, itself and the coaxial setting of described second driven wheel, wherein said second driven wheel and the embedding mutually rotationally of described first stud gear, the ratio of the number of teeth of described first stud gear and the described second driven wheel number of teeth is not less than 0.348;
The 3rd driven wheel, has the 3rd speed gear, itself and the coaxial setting of described the 3rd driven wheel, wherein said the 3rd driven wheel and the embedding mutually rotationally of described second stud gear, the ratio of the number of teeth of described second stud gear and described the 3rd driven wheel number of teeth is not less than 0.31; And
Connection gear links to each other each other rotationally with described the 3rd speed gear and described ring-type tooth bar, and the ratio of the number of teeth of wherein said the 3rd speed gear and the described connection gear number of teeth is not less than 0.571;
Wherein, when the user started described PTO, described lens barrel was subjected to the common driving of described gear on worm, described first driven wheel, described second driven wheel, the 3rd driven wheel and described connection gear and opens.
10. zoom lens according to claim 9, wherein said first driven wheel is a cross helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101017457A CN101303446A (en) | 2007-05-08 | 2007-05-08 | Optimized zoom lens gear wheel drive module and zoom lens using the module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101017457A CN101303446A (en) | 2007-05-08 | 2007-05-08 | Optimized zoom lens gear wheel drive module and zoom lens using the module |
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| Publication Number | Publication Date |
|---|---|
| CN101303446A true CN101303446A (en) | 2008-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101017457A Pending CN101303446A (en) | 2007-05-08 | 2007-05-08 | Optimized zoom lens gear wheel drive module and zoom lens using the module |
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| CN (1) | CN101303446A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122108A (en) * | 2011-04-01 | 2011-07-13 | 扬州大学 | Independently moving and independently rotating two-degree-of-freedom parallel mechanism |
| CN101750717B (en) * | 2008-12-10 | 2012-08-29 | 佳能株式会社 | Optical element drive mechanism and image pickup apparatus having the same |
| CN108279469A (en) * | 2018-03-22 | 2018-07-13 | 苏州蛟视智能科技有限公司 | A kind of automatic focusing device |
| CN112526700A (en) * | 2020-12-21 | 2021-03-19 | 维沃移动通信有限公司 | Camera module and electronic equipment |
-
2007
- 2007-05-08 CN CNA2007101017457A patent/CN101303446A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750717B (en) * | 2008-12-10 | 2012-08-29 | 佳能株式会社 | Optical element drive mechanism and image pickup apparatus having the same |
| CN102122108A (en) * | 2011-04-01 | 2011-07-13 | 扬州大学 | Independently moving and independently rotating two-degree-of-freedom parallel mechanism |
| CN102122108B (en) * | 2011-04-01 | 2012-08-22 | 扬州大学 | Independently moving and independently rotating two-degree-of-freedom parallel mechanism |
| CN108279469A (en) * | 2018-03-22 | 2018-07-13 | 苏州蛟视智能科技有限公司 | A kind of automatic focusing device |
| CN112526700A (en) * | 2020-12-21 | 2021-03-19 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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Open date: 20081112 |