CN2672677Y - Lens module - Google Patents
Lens module Download PDFInfo
- Publication number
- CN2672677Y CN2672677Y CN 200320125239 CN200320125239U CN2672677Y CN 2672677 Y CN2672677 Y CN 2672677Y CN 200320125239 CN200320125239 CN 200320125239 CN 200320125239 U CN200320125239 U CN 200320125239U CN 2672677 Y CN2672677 Y CN 2672677Y
- Authority
- CN
- China
- Prior art keywords
- camera lens
- lens module
- circuit board
- slide block
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a lens module assembly, comprising a lens which includes a plurality of lenses, a base, comprising a framing canister and a base in which a containing part is formed, a circuit board whose shape matches the base containing part, and an image induction chip which is arranged just across from the framing canister is arranged on the upper surface of the circuit board, a transmission structure, wherein the lens is fixed inside the framing canister, incident light is made to irradiate to the image induction chip through a plurality of lenses, and the transmission structure can control the up and down movements of the circuit board. Wherein, the transmission structure can drive the circuit board to move up and down. The lens module assembly has a high accuracy of focusing and a simple structure.
Description
[technical field]
The utility model is the camera lens module that is used for the digital camera focusing of portable electron device about a kind of.
[background technology]
Continuous development along with digital technology, digital camera is by people's widespread use, particularly in recent years mobile phone and PDA portable electron devices such as (personal digital assistants) also fast to high-performance, the multifunction direction develops, the combination of digital camera and these portable electron devices has become the key of development mobile multimedia technology, the digital camera volume that cause combines with this portable electron device is less and simple in structure, therefore adopt focuses structure more, the focal length that is its lens combination is constant, the distance of its lens combination and image sensor remains unchanged, as the patent No. be 01202112.1 the patent disclosure a kind of camera lens module that focus structure of China Intellectual Property Office at Granted publication on the 5th in Dec calendar year 2001, the video sensing chip in this camera lens module is positioned at the focal position of its lens combination.According to the lens imaging principle, be positioned at when thing under the situation of infinite distant place (object distance is more than or equal to 50 times of focal length), imaging surface is positioned on the focal plane.Therefore, above-mentioned tight shot module can not influence image quality when being used to take remote scenery, but it is when taking closely scenery, because object distance is less, image distance increases, and causes imaging surface and focal plane not at grade, therefore causes the imaging on the focal plane unintelligible.For improving this kind situation, just need to adjust image distance, the i.e. distance of lens combination and video sensing chip.Please refer to shown in Figure 1, China Intellectual Property Office February in 2003 Granted publication on the 26th patent disclosure a kind of camera lens module of adjusting image distance, this camera lens module mainly comprises camera lens 21, focusing ring 22, elastic device 23 and pedestal 24.Wherein camera lens 21 and focusing ring 22 are connected by elastic device 23 between focusing ring 22 and the pedestal 24 by threads engaged, and this focusing ring below is provided with regulating tank 221, and pedestal 24 is provided with the salient point 241 that matches with regulating tank 221.Pull focusing ring 22, it is rotated with respect to pedestal 24, because the salient point 241 of pedestal 24 contact with the varying mesa of the focusing groove 221 of focusing ring, drive camera lens 21 is done rectilinear motion along optical axis direction, thus the spacing of change lens combination and video sensing chip.Pause on only can be in the regulating tank different table top of the rotation of the focusing ring of this camera lens module, promptly only can the segmentation focusing, thus influence focusing accuracy, and the complex structure of this camera lens module, especially higher to the material requirements of focusing ring, increase manufacturing cost and difficulty.
In view of this, provide a kind of focusing accuracy camera lens module high and simple in structure real for necessary.
[utility model content]
The purpose of this utility model is to provide a kind of camera lens module, and the focusing accuracy of this camera lens module is high and simple in structure.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of camera lens module is provided, and it comprises: a camera lens, and it comprises a plurality of lens; One pedestal, it comprises find a view tube and base, the inner holding part that forms of base; One circuit board, its upper surface is provided with the video sensing chip, and this chip is over against the tube of finding a view; Wherein, this camera lens is fixed in the tube of finding a view, thereby incident ray is incident upon on the video sensing chip through a plurality of lens; This circuit board and holding part match, and can move up and down in holding part, and this camera lens module also comprises the drive mechanism that this circuit board of control moves up and down in holding part.
The beneficial effects of the utility model are: camera lens module of the present utility model carries out progressive focusing continuously by drive mechanism, thereby improved the focusing accuracy of camera lens module, the focus adjusting mechanism of this camera lens module only is made of an elastic parts and drive mechanism, and it is simple in structure.
[description of drawings]
Fig. 1 is that the camera lens module of prior art is disassembled stereographic map.
Fig. 2 is the diagrammatic cross-section of camera lens module of the present utility model.
[embodiment]
Please refer to shown in Figure 2ly, the utility model provides a kind of camera lens module 1, and it comprises: a camera lens 12, a pedestal 14, one circuit boards 16, be arranged at the video sensing chip 166 on the circuit board and the platform 17 of this circuit board of carrying, and a focus adjusting mechanism 18.
This camera lens 12 comprises lens barrel 122 and a plurality of lens 124, and these a plurality of lens 124 assemblings also are fixed in the lens barrel 122, forms to have the lens combination of certain focal length, is used to converge incident ray.These lens barrel 122 front ends are provided with the top cover 126 of tool transmittance section, are used to protect lens 124, and lens barrel 122 outer walls are provided with screw thread (figure does not show), are used for camera lens 12 and pedestal 14 are screwed togather.
This pedestal 14 comprises the tube 142 and base 144 of finding a view, and the find a view internal diameter of tube 142 and the external diameter of lens barrel 122 match, and its inwall is provided with the screw thread with the threads engaged of the outer wall of lens barrel 122, so that lens barrel 122 screws in the tube 142 of finding a view.The linking of this lens barrel 122 and the tube 142 of finding a view also can be adopted alternate manners such as stickup or thermal welding.Base 144 inner hollow form a holding part 146, are used for ccontaining circuit board 16.The height of this holding part 146 is suitable, and its inner wall surface is smooth, is convenient to circuit board 16 and moves up and down.
The holding part 146 of the shape of this circuit board 16, size and base 144 matches, and it has side 160, upper surface 162 and lower surface 164.Its side 160 smooth surfaces, matching with the inwall of base 144 merges and can slide up and down by relative its.Circuit board 16 upper surfaces 162 are a surface level, which is provided with a video sensing chip 166, this chip 166 is right against the tube 142 of finding a view, thereby makes the incident ray after lens combination converges be incident upon this chip 166, and this chip 166 is converted to electric signal with the light signal that is received.This chip 166 is electrically connected at circuit board 16, carries out image processing thereby send the electric signal that chip 166 is responded to image processor.Platform 17 is made by insulating material, is used for bearer circuit plate 16, and it is wedge type, and its upper surface is a surface level and the also relative fixed that is connected with the lower surface 164 of circuit board 16, and its lower surface 172 is inclined-planes and smooth.
Focus adjusting mechanism 18 comprises spring 182, slide block 184 and screw rod 186.This slide block 184 is the wedge type that matches with platform 17, and it comprises first side 1842, second side 1844 and upper surface 1845.This upper surface 1845 is inclined-plane and smooth surfaces that the lower surface 172 with platform 17 matches, and it can slide with respect to platform 17.This second side 1844 is provided with locating slot 185, and it matches with screw rod 186, thereby makes slide block 184 and screw rod 186 form a drive mechanism, is used for the motion of control circuit board 16.This spring 182 is volute springs, and the one end is fixed on an appropriate location, and for example: the shell of ccontaining this focus adjusting mechanism 18, first side 1842 of the other end and slide block 184 is connected, and makes this spring 182 produce the elastic potential energy of horizontal direction.These screw rod 186 1 ends pass one and its positioning through hole that matches 20, insert the locating slot 185 on second side 1844, thereby make this screw rod 186 maintenance levels, and can freely rotate in locating slot 185.One end of screw rod 186 is provided with the nut 188 of being convenient to rotary screw 186.The surface of this screw rod 186 is provided with first screw thread (not label), this positioning through hole 20 can be arranged on one fixedly on the shell wall 30, for example: on the shell of ccontaining this focus adjusting mechanism 18, the inwall of this positioning through hole 20 is provided with second screw thread with first threads engaged, thereby this screw rod 186 can promote by the cooperation of first screw thread and second screw thread and stop slide block 184 motions, thereby reaches the purpose of control slide block 184 motions.Nut 188 is exposed to outside the shell wall 30, so that focus in the shooting process.
According to lens imaging principle (sum reciprocal of object distance and image distance equals the inverse of focal length), when thing is positioned at infinite distant place, imaging surface is positioned at the place, focal plane, under the constant situation of focal length, the more little then image distance of object distance is big more, so when the video sensing chip 166 of this lens module was positioned at the focal plane, spring 182 should be in compressive state, so that the elastic force that is produced when utilizing spring 182 to discharge elastic potential energy during focusing promotes slide block 184 tangential movements, in the holding part of pedestal, move up and down thereby drive circuit board 16.
During shooting, according to the distance of taking thing, by nut 188 rotary screws 186, thereby control the image distance of this camera lens module 1, reaching the purpose of focusing, thereby reach the effect that improves the shooting at close range quality.Inwardly during precession screw rod 186, promote slide block 184 to left movement, spring 182 storage elasticity potential energy, contraction in length, circuit board 16 moves up, and image distance reduces.When outwards screwing out screw rod 186, spring 182 discharges elastic potential energy, and length increases, and promotes slide block 184 and moves right, and circuit board 16 moves down, thereby image distance increases.
Be appreciated that lens barrel 122 of the present utility model can omit, and with 124 assemblings of a plurality of lens and be fixed in the tube 142 of finding a view.Spring 182 can replace with other elastic parts with elastic potential energy.Also available other drive mechanism, the effect that can reach the motion of control circuit board 16 gets final product.This spring 182 also can omit, and at this moment, screw rod 186 gets final product with respect to slide block 184 rotatable being fixed together.
Claims (10)
1. camera lens module, it comprises: a camera lens, it comprises a plurality of lens; One pedestal, it comprises find a view tube and base, the inner holding part that forms of base; One circuit board, its upper surface is provided with the video sensing chip, and this chip is over against the tube of finding a view; Wherein, this camera lens is fixed in the tube of finding a view, thereby incident ray is incident upon on the video sensing chip through a plurality of lens; It is characterized in that: this circuit board and holding part match, and can move up and down in holding part, and this camera lens module also comprises the drive mechanism that this circuit board of control moves up and down in holding part.
2. camera lens module as claimed in claim 1 is characterized in that: described drive mechanism comprises a usefulness slide block and is used to control the screw rod of slide block movement.
3. camera lens module as claimed in claim 2 is characterized in that: described slide block is wedge shape, and it comprises upper surface and upper surface opposing lower surface and and relative to each other first side and second side adjacent with upper and lower surface, and this upper surface is an inclined-plane.
4. camera lens module as claimed in claim 3 is characterized in that: first side of described slide block is provided with the locating slot that matches with screw rod.
5. camera lens module as claimed in claim 4 is characterized in that: the below of described circuit board is provided with a platform, and this platform is wedge shape, and the lower surface of its upper surface and circuit board links to each other, and its lower surface is an inclined-plane.
6. camera lens module as claimed in claim 5 is characterized in that: the upper surface of described slide block is the smooth surface that can slide relatively with the lower surface of platform.
7. camera lens module as claimed in claim 6 is characterized in that: described camera lens module also comprises the shell of ccontaining this drive mechanism.
8. camera lens module as claimed in claim 7 is characterized in that: described shell is provided with the through hole that matches with screw rod, and this screw rod passes this through hole level and inserts locating slot.
9. camera lens module as claimed in claim 8 is characterized in that: described camera lens module also comprises a flexible member, and this flexible member one end is fixed on the above-mentioned shell, and second side of the other end and slide block is connected.
10. camera lens module as claimed in claim 2 is characterized in that: described screw rod and slide block are fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125239 CN2672677Y (en) | 2003-12-20 | 2003-12-20 | Lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125239 CN2672677Y (en) | 2003-12-20 | 2003-12-20 | Lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2672677Y true CN2672677Y (en) | 2005-01-19 |
Family
ID=34476729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320125239 Expired - Lifetime CN2672677Y (en) | 2003-12-20 | 2003-12-20 | Lens module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2672677Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006119693A1 (en) * | 2005-05-11 | 2006-11-16 | Beijing Huaqi Digital Technology Lab Co., Ltd. | Automatic focusing device |
| CN100419487C (en) * | 2005-09-09 | 2008-09-17 | 鸿富锦精密工业（深圳）有限公司 | Lens system |
| CN101750710B (en) * | 2008-12-22 | 2012-07-04 | 深圳富泰宏精密工业有限公司 | Lens module and electronic device applying lens module |
| CN103671887A (en) * | 2013-12-29 | 2014-03-26 | 长城汽车股份有限公司 | Adjustable-stroke reverse gear locking mechanism |
| CN105805127A (en) * | 2016-05-31 | 2016-07-27 | 常州市耐斯工控工程有限公司 | Bolt with telescopic function |
| CN115103092A (en) * | 2011-11-22 | 2022-09-23 | 康耐视公司 | Vision system camera with mount for multiple lens types |
-
2003
- 2003-12-20 CN CN 200320125239 patent/CN2672677Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006119693A1 (en) * | 2005-05-11 | 2006-11-16 | Beijing Huaqi Digital Technology Lab Co., Ltd. | Automatic focusing device |
| CN100419487C (en) * | 2005-09-09 | 2008-09-17 | 鸿富锦精密工业（深圳）有限公司 | Lens system |
| CN101750710B (en) * | 2008-12-22 | 2012-07-04 | 深圳富泰宏精密工业有限公司 | Lens module and electronic device applying lens module |
| CN115103092A (en) * | 2011-11-22 | 2022-09-23 | 康耐视公司 | Vision system camera with mount for multiple lens types |
| CN103671887A (en) * | 2013-12-29 | 2014-03-26 | 长城汽车股份有限公司 | Adjustable-stroke reverse gear locking mechanism |
| CN103671887B (en) * | 2013-12-29 | 2016-05-04 | 长城汽车股份有限公司 | A kind of stroke adjustable inverted block locking mechanism |
| CN105805127A (en) * | 2016-05-31 | 2016-07-27 | 常州市耐斯工控工程有限公司 | Bolt with telescopic function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131220 Granted publication date: 20050119 |