CN204731475U - A kind of ultra-wide angle optical lens for cell phone - Google Patents
A kind of ultra-wide angle optical lens for cell phone Download PDFInfo
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- CN204731475U CN204731475U CN201520460580.2U CN201520460580U CN204731475U CN 204731475 U CN204731475 U CN 204731475U CN 201520460580 U CN201520460580 U CN 201520460580U CN 204731475 U CN204731475 U CN 204731475U
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Abstract
The utility model discloses a kind of ultra-wide angle optical lens for cell phone, the first lens set gradually are comprised from object plane to image planes, diaphragm, second lens, 3rd lens, 4th lens and the 5th lens, first lens and the second lens are glass lens, 3rd lens, 4th lens and the 5th lens are plastic lens, the lens of glass material and the lens of plastic cement material are adopted to combine, both met design requirement, be convenient to again manufacture processing, have ultra-thin, low sensitivity and the high feature of yields, and can be mass-produced, diaphragm is located in the middle of optical system, optical system is made to be symmetrical structure, improve distortion and chromatic longitudiinal aberration, effectively improve image quality, make it that there is high picture element.
Description
[technical field]
The utility model relates to optical lens, especially a kind of ultra-wide angle optical lens for cell phone.
[background technology]
There are some drawbacks in the high-pixel mobile phone pick-up lens of current use, although its design performance is better, but because eyeglass must adopt the designing requirement of ultra thin dimensions, then cause the tolerance sensitivities of this eyeglass high, also improve manufacture difficulty simultaneously, yields is low, increases enterprise's production cost, is unfavorable for producing in enormous quantities.
The utility model researches and develops proposition for the deficiencies in the prior art.
[utility model content]
The technical problems to be solved in the utility model is to provide a kind of ultra-wide angle optical lens for cell phone, the first lens set gradually are comprised from object plane to image planes, diaphragm, second lens, 3rd lens, 4th lens and the 5th lens, the lens of glass material and the lens of plastic cement material are adopted to combine, both met design requirement, be convenient to again manufacture processing, have ultra-thin, low sensitivity and the high feature of yields, and can be mass-produced, diaphragm is located in the middle of optical system, optical system is made to be symmetrical structure, improve distortion and chromatic longitudiinal aberration, effectively improve image quality, make it that there is high picture element.
For solving the problems of the technologies described above, a kind of ultra-wide angle optical lens for cell phone of the utility model, from object plane to image planes, comprise the first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens that set gradually, between described first lens and the second lens, be provided with diaphragm.
Described first lens are positive focal length glass lens, and described first lens are convex spherical towards the one side of object plane, and described first lens are oblate of matrix towards the one side of image planes.
Described second lens are positive focal length glass lens, and described second lens are matrix hyperbolic curve aspheric surface towards the one side of object plane, and described second lens are convex hyperbolic curve aspheric surface towards the one side of image planes.
Described 3rd lens are negative focal length plastic lens, and described 3rd lens are hyperbolic curve aspheric surface towards two faces of object plane and image planes.
Described 4th lens are positive focal length plastic lens, and described 4th lens are hyperbolic curve aspheric surface towards the one side of object plane, and described 4th lens are oblate aspheric surface towards the one side of image planes.
Described 5th lens are negative focal length plastic lens, and described 5th lens are hyperbolic curve aspheric surface towards two faces of object plane and image planes.
The focal length of described first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens is respectively f1, f2, f3, f4 and f5, meet: 0<f1/f2<4,-3<f2/f3<0, f3<0, f4>0, f5<0.
The abbe number of described first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens is respectively vd lens 1, vd lens 2, vd lens 3, vd lens 4 and vdlens 5, meet: 18<vd lens 3≤35,0<vd lens1/vd lens2<2, (vdlens4, lens5) >=40.
The center be arranged between the first lens and the second lens of described diaphragm.
Corresponding to the surface radius of described second lens, the 3rd lens, the 4th lens and the 5th lens non-spherical lens, curvature is c, radial coordinate is respectively y2, y4, y6, y8, y10, y12, y14 and y16, coefficient corresponding to each radial coordinate is respectively α 1, α 2, α 3, α 4, α 5, α 6, α 7 and α 8, circular cone whose conic coefficient is k, and the aspherical surface shape of described second lens, the 3rd lens, the 4th lens and the 5th lens meets: Z=cy2/{1+ [1-1+kc2y2]
1/2+ α 1y2+ α 2y4+ α 3y6+ α 4y8+ α 5y10+ α 6y12+ α 7y14+ α 8y16.
Compared with prior art, the utility model tool has the following advantages:
1, the focal length of the first lens and the second lens and abbe number, meet: 0<f1/f2<4,0<vd lens1/vd lens2<2, solve the problem that in the utility model, before and after diaphragm, lens arrangement becomes symmetrical, can effectively reduce structural tolerance sensitivity.
2, adopt the lens of glass material and the lens of plastic cement material to combine, both met design requirement, be convenient to again manufacture processing, have ultra-thin, low sensitivity and the high feature of yields, and can be mass-produced, raising enterprises production efficiency, reduces costs.
3, the 5th lens are hyperbolic curve aspheric surface towards two faces of object plane and image planes, effectively reduce spherical aberration and the curvature of field two kinds of aberrations, thus improve image quality further, can realize the imaging of more than 2,000 ten thousand pixels.
4, the first lens, the second lens have employed Glass aspheric, and the Geometrical MTF of system is greatly improved, and the taxes and profits degree of the utility model product, transmitance, color reducibility can be made to be significantly improved.
5, because the 3rd lens, the 4th lens and the 5th lens employ plastic material eyeglass, alleviate the weight of camera lens, and reduce the cost of camera lens.
6, due to the center of diaphragm between the first lens and the second lens, the first lens are similar with the second lens shape, and are tending towards symmetrical structure, improve system tolerance greatly.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail, wherein:
Fig. 1 is the structural representation that each lens of the utility model are arranged.
[embodiment]
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
A kind of ultra-wide angle optical lens for cell phone of the utility model, the first lens 1, second lens 2, the 3rd lens 3, the 4th lens 4 and the 5th lens 5 that set gradually are comprised from object plane to image planes, first lens 1 and the second lens 2 are glass lens, 3rd lens 3, the 4th lens 4 and the 5th lens 5 are plastic lens, the lens of glass material and the lens of plastic cement material are adopted to combine, both met design requirement, be convenient to again manufacture processing, there is ultra-thin, low sensitivity and the high feature of yields, and can be mass-produced, improve enterprises production efficiency, reduce costs.Diaphragm 6 is provided with between described first lens 1 and the second lens 2, and described diaphragm 6 is arranged at the center between the first lens 1 and the second lens 2, first lens 1 are similar with the shape of the second lens 2, and are tending towards symmetrical structure, and the setting of diaphragm 6 significantly improves system tolerance.
Described first lens 1 are positive focal length lens, and described first lens 1 are convex spherical towards the one side of object plane, and described first lens 1 are oblate of matrix towards the one side of image planes.
Described second lens 2 are positive focal length lens, and described second lens 2 are matrix hyperbolic curve aspheric surface towards the one side of object plane, and described second lens 2 are convex hyperbolic curve aspheric surface towards the one side of image planes.
Described 3rd lens 3 are negative focal length lens, and described 3rd lens 3 are hyperbolic curve aspheric surface towards two faces of object plane and image planes.
Described 4th lens 4 are positive focal length lens, and described 4th lens 4 are hyperbolic curve aspheric surface towards the one side of object plane, and described 4th lens 4 are oblate aspheric surface towards the one side of image planes.
Described 5th lens 5 are negative focal length lens, and described 5th lens 5 are hyperbolic curve aspheric surface towards two faces of object plane and image planes, effectively reduce spherical aberration and the curvature of field two kinds of aberrations, thus improve image quality further, can realize the imaging of more than 2,000 ten thousand pixels.
Described 5th lens 5 are also provided with optical filter 7 and CMOS sensitive chip 8 successively towards that side of image space; during light directive CMOS sensitive chip 8; first filtered by optical filter 7; therefore; optical filter 7 pairs of CMOS sensitive chips 8 have certain protective effect; simultaneously also filter a part of light, to reduce veiling glare and hot spot etc., make image color beautiful and sharp keen while there is good color reducibility.
The focal length of described first lens 1, second lens 2, the 3rd lens 3, the 4th lens 4 and the 5th lens 5 is respectively f1, f2, f3, f4 and f5, meet: 0<f1/f2<4,-3<f2/f3<0, f3<0, f4>0, f5<0.
The abbe number of described first lens 1, second lens 2, the 3rd lens 3, the 4th lens 4 and the 5th lens 5 is respectively vd lens 1, vd lens 2, vd lens 3, vd lens4 and vd lens 5, meet: 18<vd lens 3≤35,0<vd lens1/vd lens2<2, vd lens4, lens5) >=40.
The focal length of the first lens 1 and the second lens 2 and abbe number, meet: 0<f1/f2<4,0<vd lens1/vd lens2<2, solve the problem that the first lens 1 in the utility model before and after diaphragm 6 and the second lens 2 structure become symmetrical, can effectively reduce structural tolerance sensitivity.
Corresponding to the surface radius of described second lens 2, the 3rd lens 3, the 4th lens 4 and the 5th lens 5 non-spherical lens, curvature is c, radial coordinate is respectively y2, y4, y6, y8, y10, y12, y14 and y16, the unit of radial coordinate is identical with length of lens unit, coefficient corresponding to each radial coordinate is respectively α 1, α 2, α 3, α 4, α 5, α 6, α 7 and α 8, circular cone whose conic coefficient is k, and the aspherical surface shape of described second lens 2, the 3rd lens 3, the 4th lens 4 and the 5th lens 5 meets: Z=cy2/{1+ [1-1+kc2y2]
1/2+ α 1y2+ α 2y4+ α 3y6+ α 4y8+ α 5y10+ α 6y12+ α 7y14+ α 8y16.
In the utility model, when k is less than-1, the face shape curve of lens is hyperbolic curve; When k equals-1, the face shape curve of lens is para-curve; When k is between-1 to 0, the face shape curve of lens is oval; When k equals 0, the face shape curve of lens is circular; When k is greater than 0, the face shape curve of lens is oblate.
Claims (4)
1. a ultra-wide angle optical lens for cell phone, it is characterized in that from object plane to image planes, comprise the first lens (1), the second lens (2), the 3rd lens (3), the 4th lens (4) and the 5th lens (5) that set gradually, between described first lens (1) and the second lens (2), be provided with diaphragm (6);
Described first lens (1) are positive focal length glass lens, and described first lens (1) are convex spherical towards the one side of object plane, and described first lens (1) are oblate of matrix towards the one side of image planes;
Described second lens (2) are positive focal length glass lens, and described second lens (2) are matrix hyperbolic curve aspheric surface towards the one side of object plane, and described second lens (2) are convex hyperbolic curve aspheric surface towards the one side of image planes;
Described 3rd lens (3) are negative focal length plastic lens, and described 3rd lens (3) are hyperbolic curve aspheric surface towards two faces of object plane and image planes;
Described 4th lens (4) are positive focal length plastic lens, and described 4th lens (4) are hyperbolic curve aspheric surface towards the one side of object plane, and described 4th lens (4) are oblate aspheric surface towards the one side of image planes;
Described 5th lens (5) are negative focal length plastic lens, and described 5th lens (5) are hyperbolic curve aspheric surface towards two faces of object plane and image planes.
2. by a kind of ultra-wide angle optical lens for cell phone described in claim 1, it is characterized in that described first lens (1), the second lens (2), the 3rd lens (3), the 4th lens (4) and the 5th lens (5) focal length be respectively f1, f2, f3, f4 and f5, meet: 0<f1/f2<4,-3<f2/f3<0, f3<0, f4>0, f5<0;
The abbe number of described first lens (1), the second lens (2), the 3rd lens (3), the 4th lens (4) and the 5th lens (5) is respectively vd lens 1, vd lens 2, vd lens3, vd lens 4 and vd lens 5, meet: 18<vd lens 3≤35,0<vd lens1/vdlens2<2, (vd lens4, lens5) >=40.
3., by a kind of ultra-wide angle optical lens for cell phone described in claim 1, it is characterized in that described diaphragm (6) is arranged at the center between the first lens (1) and the second lens (2).
4. by a kind of ultra-wide angle optical lens for cell phone described in claim 1 or 2 or 3, it is characterized in that described second lens (2), 3rd lens (3), corresponding to the surface radius of the 4th lens (4) and the 5th lens (5) non-spherical lens, curvature is c, radial coordinate is respectively y2, y4, y6, y8, y10, y12, y14 and y16, coefficient corresponding to each radial coordinate is respectively α 1, α 2, α 3, α 4, α 5, α 6, α 7 and α 8, circular cone whose conic coefficient is k, described second lens (2), 3rd lens (3), the aspherical surface shape of the 4th lens (4) and the 5th lens (5) meets: Z=cy2/{1+ [1-(1+k) c2y2]
1/2+ α 1y2+ α 2y4+ α 3y6+ α 4y8+ α 5y10+ α 6y12+ α 7y14+ α 8y16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460580.2U CN204731475U (en) | 2015-06-29 | 2015-06-29 | A kind of ultra-wide angle optical lens for cell phone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520460580.2U CN204731475U (en) | 2015-06-29 | 2015-06-29 | A kind of ultra-wide angle optical lens for cell phone |
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| CN204731475U true CN204731475U (en) | 2015-10-28 |
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| CN201520460580.2U Active CN204731475U (en) | 2015-06-29 | 2015-06-29 | A kind of ultra-wide angle optical lens for cell phone |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908934A (en) * | 2017-04-01 | 2017-06-30 | 中山联合光电科技股份有限公司 | A kind of ultra-thin camera lens of periscopic long-focus |
| CN108227158A (en) * | 2016-12-22 | 2018-06-29 | 三星电机株式会社 | Optical imaging system |
-
2015
- 2015-06-29 CN CN201520460580.2U patent/CN204731475U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108227158A (en) * | 2016-12-22 | 2018-06-29 | 三星电机株式会社 | Optical imaging system |
| US10732384B2 (en) | 2016-12-22 | 2020-08-04 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| CN108227158B (en) * | 2016-12-22 | 2021-03-09 | 三星电机株式会社 | Optical imaging system |
| US11506871B2 (en) | 2016-12-22 | 2022-11-22 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| US11852789B2 (en) | 2016-12-22 | 2023-12-26 | Samsung Electro-Mechanics Co., Ltd. | Optical imaging system |
| CN106908934A (en) * | 2017-04-01 | 2017-06-30 | 中山联合光电科技股份有限公司 | A kind of ultra-thin camera lens of periscopic long-focus |
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