CN201000500Y - An optical focusing system - Google Patents
An optical focusing system Download PDFInfo
- Publication number
- CN201000500Y CN201000500Y CNU2007200471683U CN200720047168U CN201000500Y CN 201000500 Y CN201000500 Y CN 201000500Y CN U2007200471683 U CNU2007200471683 U CN U2007200471683U CN 200720047168 U CN200720047168 U CN 200720047168U CN 201000500 Y CN201000500 Y CN 201000500Y
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- collar
- focusing system
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- optical focusing
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- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 230000014509 gene expression Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 239000012634 fragment Substances 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
本实用新型涉及一种高像素的微型对焦系统，更具体来说是一种用于高像素手机镜头、高像素照相机镜的光学对焦系统。本实用新型旨在克服现有技术不足，而提供一种结构简单、可调节对焦的光学系统。包括有起支撑定位作用的支承座和镜头，所述的支承座周围向上延伸有多个支撑柱，在支撑柱之间设置有起调焦作用的套环，该套环分第一套环和第二套环，所述的镜头固定在第一套环上，第一套环由支撑柱定位使之能上下移动，第二套环设置在第一套环与支撑柱之间，在套环上分段设有拨动第二套环使之能推动第一套环上、下移动的凸轮推杆机构。本实用新型主要应用于高精度照相手机用的数码镜头。
The utility model relates to a high-pixel micro-focusing system, more specifically, an optical focusing system for high-pixel mobile phone lenses and high-pixel camera lenses. The utility model aims to overcome the shortcomings of the prior art and provide an optical system with a simple structure and adjustable focus. It includes a support seat and a lens for supporting and positioning. A plurality of support columns extend upward around the support seat. A ring for focusing is arranged between the support columns. The ring is divided into a first ring and a second ring. The lens is fixed on the first ring. The first ring is positioned by the support column so that it can move up and down. The second ring is arranged between the first ring and the support column. The ring is provided with a cam push rod mechanism in sections for moving the second ring so that it can push the first ring up and down. The utility model is mainly used for digital lenses for high-precision camera phones.
Description
[technical field]
The utility model relates to the miniature focusing system of high pixel, more particularly is a kind of optics focusing system that is used for high-pixel mobile phone lens, high pixel camera mirror.
[background technology]
The digital camera lens of the camera cell phone of Xiao Shouing in the market, it mainly is the camera lens of 300,000,1,300,000 pixels, camera cell phone than higher gears, dispose the digital camera lens of 2,000,000 even 3,000,000 pixels, this class camera lens is not owing to there is focus function, for the filmed image that guarantees different distance scenery can not have too big difference, in the optical texture design, just can not satisfy the lightness and the contrast of taking picture element.For taking in-plant scenery, owing to there is not focus function, the scenery image will be smudgy.But, the digital camera lens of popular camera cell phone on the present market, the overwhelming majority is not the focusing optical system lens, and no matter captured photograph picture element is the restriction that the contrast of whole sharpness, lightness or image planes is added shooting distance, and effect is not very desirable.Have the camera cell phone of minority that certain focus function is arranged, but its adopt gear and worm gearing, the high-precision requirement that transmission efficiency is low, the low precision that repeats to focus, transmission accuracy can not satisfy optical system, and also design is complicated, and profile is bigger than normal.It is thin and small and exquisite that such focus function camera lens can not satisfy camera cell phone, the reliable quality developing direction.
For solving above-mentioned existing problem, the utility model is made useful improvement.
[utility model content]
The purpose of this utility model is in order to overcome the prior art deficiency, and a kind of optical system of simple in structure, scalable focusing is provided.
In order to solve the technical matters of above-mentioned existence, the utility model adopts following technical proposal:
A kind of optics focusing system, the supporting base and the camera lens that support positioning action have been included, it is characterized in that: extended upward a plurality of support columns around the described supporting base, between support column, be provided with the collar of focusing action, this collar divides first collar and second collar, described camera lens is fixed on first collar, first collar is made it to move up and down by the support column location, second collar is arranged between first collar and the support column, and segmentation is provided with and stirs second collar and make it to promote the upper and lower mobile cam follower mechanism of first collar on the collar;
Described a kind of optics focusing system, it is characterized in that: described cam follower mechanism includes the cam curve that is located on second collar and is located at the push rod that matches with cam curve on first collar, this cam curve includes upper and lower plane, be provided with a cant plane between the upper and lower plane, on described second collar side, also be provided with the pulling block that stretches out between adjacent two support columns;
Described a kind of optics focusing system is characterized in that: also be provided with bumping square on described first collar side, this bumping square is stuck between the two adjacent support columns that play guide effect;
Described a kind of optics focusing system is characterized in that: also be provided with the platform of the protrusion that supports first collar on the described supporting base, also be provided with the annular shaft of positioning of rotating effect on supporting base, the annular ring of second collar is enclosed within the annular shaft;
Described a kind of optics focusing system is characterized in that: be fixedly connected with the locking shell fragment that compresses first collar effect on the support column of described supporting base;
Described a kind of optics focusing system is characterized in that: described camera lens adopts the mode of screw thread to be connected on first collar;
Described a kind of optics focusing system is characterized in that: described cam curve is arranged on second collar symmetrically, and described cam curve is six;
Described a kind of optics focusing system is characterized in that: described supporting base, camera lens, the collar and shell fragment are formed focusing system, and this focusing system satisfies following formula: 0＜MF-dist＜0.2mm, 0.5mm≤MF-mbf1≤1.5mm.
The utility model compared with prior art has following advantage:
Because the utility model has added the collar of a pair of focusing action, it is unique cam structure, making rotatablely moves becomes and moves up and down, make it play focusing action, the shooting bat image that has guaranteed different distance scenery can not have too big difference, when taking closely, can be by after the focusing focusing effect, it is clear that the scenery image will become; Have owing to adopt unique cam structure, it has simple in structure, straight line and moves that focusing, imaging system are stablized, advantages such as repeatable accuracy is high, precision is reliable, size is little, compact conformation again.
[description of drawings]
Fig. 1 is an explosive view of the present utility model;
Fig. 2 is a stereographic map of the present utility model;
Fig. 3 is a stereographic map of removing camera lens and shell fragment of the present utility model;
Fig. 4 is the wiring layout of first and second collar of the present utility model;
Fig. 5 is the stereographic map of first collar of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
A kind of optics focusing system, the supporting base 1 and the camera lens 2 that support positioning action have been included, a plurality of support columns 11 have been extended upward around the described supporting base 1, between support column 11, be provided with the collar 4 of focusing action, 4 minutes first collars 41 of this collar and second collar 42, described camera lens 2 is fixed on first collar 41, first collar 41 is made it to move up and down by support column 11 location, second collar 42 is arranged between first collar 41 and the support column 11, is provided with in segmentation on the collar 4 and stirs second collar 42 and make it to promote on first collar 41, mobile down cam follower mechanism 5.
Described cam follower mechanism 5 includes the cam curve 421 that is located on second collar 42 and is located at the push rod 411 that matches with cam curve 421 on second collar 42, this cam curve 421 includes upper and lower plane 422,423, is provided with a cant plane 424 between the upper and lower plane 422,423.When described push rod 411 was done rotation relatively on cant plane 424, the vertical relatively distance of first collar 41 and second collar 42 also and then became big or diminishes; Also be provided with the pulling block 425 that stretches out between the adjacent support column 11 on described second collar 42 sides, this pulling block 425 can be regulated with hand is convenient, also can finish adjusting by mechanical arm.Also be provided with the platform 12 of the protrusion that supports second collar 42 on the described supporting base 1, on supporting base 1, also be provided with the annular shaft 13 of positioning of rotating effect, the annular ring 425 of second collar 42 is enclosed within 13 li of annular shaft, described first collar also is provided with bumping square 412 on 41 sides, this bumping square 412 is stuck between the two adjacent support columns 11 that play guide effect, just being stuck between adjacent two support columns 11 of this bumping square 412 can only move up and down, can not move left and right.When stirring pulling block 425, vibration can be very little under the platform 12 of supporting base 1 supports for second collar 42, there is the annular ring 426 of second collar 42 to be enclosed within 13 li of annular shaft again, so when stirring pulling block 425 rotations, annular ring 426 can rotate under the effect of annular shaft 13 reposefully, and then rotate on the cant plane 424 of second collar 42, simultaneously 411 of push rods are on cant plane 424, the push rod 411 and first collar 41 connect together, there is the bumping square 412 on first collar 41 to be stuck between the two adjacent support columns 11 again, push rod 411 can only slide on cant plane 424, plays a part to focus.
Be fixedly connected with the locking shell fragment 3 that compresses 41 effects of first collar on the support column 11 of described supporting base 1, this shell fragment 3 can be returned to the origin-location, makes first collar 41 have the to-and-fro movement effect.Described camera lens 2 is connected on first collar 41, and first collar 41 only moves up and down, and realize accurately moving up and down of camera lens, and camera lens does not rotate, has guaranteed the consistance of the optical axis and the lens imaging face of camera lens.Described cam curve 421 is arranged on second collar 42 symmetrically, described cam curve 421 is six, the shape of this cam curve 421 is the same, six movement locus curved surfaces on its circumferencial direction, symmetry is uniform, makes cam drive stressed evenly, stable drive, it is accurate to repeat to move the focusing displacement, good reliability.
Described supporting base 1, camera lens 2, the collar 4 and shell fragment 3 are formed focusing system, this focusing system satisfies following formula: 0＜MF-dist＜0.2mm, 0.5mm≤MF-mbf1≤1.5mm, wherein, MF-dist is the stroke range of focusing system, and MF-mbf1 is a burnt scope behind the focusing system permission camera lens machinery.The utility model is through reliability test---high temperature and humidity test (80 ℃ of the temperature of series, humidity 95%-), temperature cycling test (circulation is 72 hours between 30 ℃ and 70 ℃), vibration test (frequency 10-50-10Hz, amplitude 2mm, 30 minutes time), fall-down test (1.5 meters eminences are fallen), its system accuracy is constant, the outward appearance not damaged.
Optical focusing system numerical digit camera lens and common numerical digit camera lens contrast such as following table:
| Sequence number | The contrast project | Optical focusing system numerical digit camera lens | Common numerical |
| 1 | Pixel | More than 2,000,000 pixels | 30-200 ten thousand pixels |
| 2 | Illumination | Image planes are evenly whole, the lightness height | Image planes integral body is partially dark |
| 3 | Contrast | Image planes sharpness height, color is clearly demarcated | Sharpness is bad |
| 4 | Microspur | Macro function is arranged, can take scenery in the 5cm | No macro function |
The contrast of optical focusing system and existing focusing system such as following table:
| Sequence number | The contrast project | New design focusing system | Existing focusing |
| 1 | Mechanism form | Unique cam mechanism, simple in structure | The gear worm structure, complex structure, |
| 2 | The kind of drive | The traveling priority focusing, imaging system is stable | The rotary moving focusing, the |
| 3 | Reliability | The repeatable accuracy height, precision is reliable | Repeatable accuracy is low, instability |
| 4 | The profile size | Appearance and size is little, compact conformation | Size is bigger than normal, and parts are many |
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200471683U CN201000500Y (en) | 2007-01-05 | 2007-01-05 | An optical focusing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200471683U CN201000500Y (en) | 2007-01-05 | 2007-01-05 | An optical focusing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000500Y true CN201000500Y (en) | 2008-01-02 |
Family
ID=39014905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200471683U Expired - Lifetime CN201000500Y (en) | 2007-01-05 | 2007-01-05 | An optical focusing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000500Y (en) |
-
2007
- 2007-01-05 CN CNU2007200471683U patent/CN201000500Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 528400 Zhongshan Torch Development Zone, Guangdong Road, No. 10 Patentee after: Zhong Shan joint opto-electronic Science and Technology Co., Ltd. Address before: 528400 torch hi tech Industrial Development Zone, Guangdong, Zhongshan Patentee before: Union Optech (Zhongshan) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080102 |
|
| EXPY | Termination of patent right or utility model |