CN201069481Y - High image quality optical lens - Google Patents
High image quality optical lens Download PDFInfo
- Publication number
- CN201069481Y CN201069481Y CNU2007201212370U CN200720121237U CN201069481Y CN 201069481 Y CN201069481 Y CN 201069481Y CN U2007201212370 U CNU2007201212370 U CN U2007201212370U CN 200720121237 U CN200720121237 U CN 200720121237U CN 201069481 Y CN201069481 Y CN 201069481Y
- Authority
- CN
- China
- Prior art keywords
- lens
- picture element
- high picture
- utility
- image quality
- 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 - Fee Related
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Abstract
The utility model relates to a high image quality mini optical lens used with high-pixel mobile phones and high image quality cameras. The utility model comprises a lens barrel inside which a first lens, a second lens and a third lens are arranged from the outside to the inside, wherein, the first lens is a biconvex non-spherical lens, the second lens is a non-spherical lens with one convex surface and one concave surface, and the third lens is a hyperbolic non-spherical lens. The utility model aims to overcome the problems of the prior art and provide the high image quality mini optical lens with high pixel and small size and used with digital cameras and mobile phones.
Description
[technical field]
The utility model relates to a kind of optical lens, relates in particular to a kind of high picture element optical lens that is applied to high-pixel mobile phone, high picture element camera.
[background technology]
Camera, the mobile phone digital camera lens ubiquity pixel of using is lower at present, the camera cell phone of present main flow mainly is the lower low configuration camera lens of pixel on the market, no matter captured image picture element is that the sharpness or the aspects such as homogeneity of illumination of integral body is all not ideal enough, can only can not satisfy consumer's requirement as standby picture or general appreciation.
For solving above-mentioned existing problem, the utility model is made useful improvement.
[utility model content]
The utility model has overcome the deficiencies in the prior art, provides a kind of high pixel, volume little, can be used in the high picture element optical lens of digital camera and mobile phone.
In order to solve the technical matters of above-mentioned existence, the utility model adopts following technical proposal:
High picture element optical lens comprises lens barrel, is respectively equipped with first lens, second lens, the 3rd lens in lens barrel from outside to inside; It is characterized in that described first lens are the non-spherical lens of biconvex, described second lens be one protruding one recessed aspheric surface, described the 3rd lens be the aspheric surface of hyperbola;
Be provided with a rotatable aligning spacer ring of regulating optical axis between aforesaid second lens, the 3rd lens;
Between aforesaid first lens, second lens and be respectively equipped with the light-shielding sheet of the veiling glare eliminated of annular between second lens, aligning spacer ring;
The aspheric surface configuration of aforesaid first lens, the 3rd lens satisfies following equation: Z=cy
2/ { 1+ √ [1-(1+k) c
2y
2]+α
1y
2+ α
2y
4+ α
3y
6+ α
4y
8+ α
5y
10+ α
6y
12+ α
7y
14+ α
8y
16
The rear portion of aforesaid the 3rd lens also is provided with optical filter, and this optical filter is fixed on the lens barrel;
Be provided with the spacer ring that is used to guarantee the distance between the lens between aforesaid the 3rd lens and the optical filter.
The utility model compared with prior art has following advantage: 1, the ingenious combination of several camera lenses of the present utility model can reach than higher pixel; 2, illumination image planes of the present utility model are whole evenly, bright, and the most centers of existing miniature numerical digit camera lens are bright, dark all around; 3, sharpness height of the present utility model, color are clearly demarcated, and color reducibility is good.
[description of drawings]
Fig. 1 is a sectional view of the present utility model;
Fig. 2 is an exploded view of the present utility model;
Fig. 3 is a sectional exploded view of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
High picture element optical lens comprises lens barrel 1, is respectively equipped with first lens 4, second lens 5, the 3rd lens 6 in lens barrel 1 from outside to inside; Described first lens 4 are the non-spherical lens of biconvex, and described second lens 5 are one protruding one recessed aspheric surface, and described the 3rd lens 6 are the aspheric surface of hyperbola, and the upper surface of second lens 5 is the aspheric surface of hyperbola; Lower surface is necessary for the aspheric surface of hyperbola, and it can make the curvature of field reduce effectively, and the surface of the 3rd lens 6 is the aspheric surface of hyperbolic shape, and the cooperation of second and third lens 5,6 efficiently solves the problem of various aberration equilibriums.
Between described second lens 5, the 3rd lens 6, be provided with a rotatable aligning spacer ring 7 of regulating optical axis, aligning spacer ring 7 can be regulated when the device optical lens, it is rotated, can make the optical axis of the optics live part of first lens 4, second lens 5, the 3rd lens 6 reach concentric like this.
Between described first lens 4, second lens 5 and be respectively equipped with the light-shielding sheet 8 of the veiling glare eliminated of annular between second lens 5, aligning spacer ring 7, lower the distortion of imaging to greatest extent.
The aspheric surface configuration of first lens 4, the 3rd lens 6 satisfies following equation: Z=cy
2/ { 1+[1-1+kc
2y
2]
1/2}+α
1y
2+ α
2y
4+ α
3y
6+ α
4y
8+ α
5y
10+ α
6y
12+ α
7y
14+ α
8y
16In formula, parameter c is the pairing curvature of radius, and y is radial coordinate (its unit is identical with length of lens unit), and k is the circular cone whose conic coefficient.When k-factor face deltoid less than-1 time is a hyperbolic curve, equaling at-1 o'clock is para-curve, between-1 being oval between 0 the time, equals at 0 o'clock for circular, be oblateness greater than 0 o'clock.α
1To α
8Represent the pairing coefficient of each radial coordinate respectively, can accurately set the geomery of lens front and back both-sided aspherical by above parameter.
Rear portion at described the 3rd lens 6 also is provided with optical filter 9, this optical filter 9 is fixed on the lens barrel 1, the sensitive chip (not shown) of 9 pairs of back of optical filter has the certain protection effect, simultaneously also can filter a part of light, have good color reducibility when making image color beautiful and sharp keen; Between the 3rd lens 6 and optical filter 9, be provided with the spacer ring 10 that is used to guarantee the distance between the lens.
Claims (6)
1. high picture element optical lens comprises lens barrel (1), is respectively equipped with first lens (4), second lens (5), the 3rd lens (6) in lens barrel (1) from outside to inside; It is characterized in that described first lens (4) are the non-spherical lens of biconvex, described second lens (5) are one protruding one recessed aspheric surface, and described the 3rd lens (6) are the aspheric surface of hyperbola.
2. high picture element optical lens according to claim 1 is characterized in that; Between described second lens (5), the 3rd lens (6), be provided with a rotatable aligning spacer ring (7) of regulating optical axis.
3. high picture element optical lens according to claim 2 is characterized in that: between described first lens (4), second lens (5) and be respectively equipped with the light-shielding sheet (8) of the veiling glare eliminated of annular between second lens (5), aligning spacer ring (7).
4. high picture element optical lens according to claim 3 is characterized in that: the aspheric surface configuration of first lens (4), the 3rd lens (6) satisfies following equation: Z=cy
2/ { 1+[1-(1+k) c
2y
2]
1/2}+α
1y
2+ α
2y
4+ α
3y
6+ α
4y
8+ α
5y
10+ α
6y
12+ α
7y
14+ α
8y
16
5. high picture element optical lens according to claim 4 is characterized in that: also be provided with optical filter (9) at the rear portion of described the 3rd lens (6), this optical filter (9) is fixed on the lens barrel (1).
6. high picture element optical lens according to claim 5 is characterized in that: be provided with the spacer ring (10) that is used to guarantee the distance between the lens between the 3rd lens (6) and optical filter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201212370U CN201069481Y (en) | 2007-07-03 | 2007-07-03 | High image quality optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201212370U CN201069481Y (en) | 2007-07-03 | 2007-07-03 | High image quality optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201069481Y true CN201069481Y (en) | 2008-06-04 |
Family
ID=39490871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201212370U Expired - Fee Related CN201069481Y (en) | 2007-07-03 | 2007-07-03 | High image quality optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201069481Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749699A (en) * | 2011-04-22 | 2012-10-24 | 易模塑科技（深圳）有限公司 | Camera lens |
| CN102902037A (en) * | 2011-07-26 | 2013-01-30 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN102902036A (en) * | 2011-07-26 | 2013-01-30 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN102914845A (en) * | 2011-08-03 | 2013-02-06 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
-
2007
- 2007-07-03 CN CNU2007201212370U patent/CN201069481Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749699A (en) * | 2011-04-22 | 2012-10-24 | 易模塑科技（深圳）有限公司 | Camera lens |
| CN102902037A (en) * | 2011-07-26 | 2013-01-30 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN102902036A (en) * | 2011-07-26 | 2013-01-30 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| CN102914845A (en) * | 2011-08-03 | 2013-02-06 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20120703 |