CN103454751A - High-image-quality wide-angle optical camera lens - Google Patents
High-image-quality wide-angle optical camera lens Download PDFInfo
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- CN103454751A CN103454751A CN2013104002232A CN201310400223A CN103454751A CN 103454751 A CN103454751 A CN 103454751A CN 2013104002232 A CN2013104002232 A CN 2013104002232A CN 201310400223 A CN201310400223 A CN 201310400223A CN 103454751 A CN103454751 A CN 103454751A
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Abstract
The invention relates to a high-image-quality wide-angle optical camera lens. The high-image-quality wide-angle optical camera lens comprises a lens cone. A diaphragm is arranged at the front end of the lens cone. In a cavity of the lens cone, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens are sequentially arranged behind the diaphragm from outside to inside, and space rings are correspondingly arranged between the adjacent lens. The first lens is a forward focal length lens, the first surface towards the object surface is an oval aspheric surface, and the second surface towards the image surface is a hyperbola aspheric surface. Crescent backward focal length lenses are arranged on the two surfaces of the second lens, and both the surfaces are hyperbola aspheric surfaces. The third lens is a forward focal length lens, the first surface towards the object surface is a hyperbola aspheric surface, and the second surface towards the image surface is an oval aspheric surface. Forward focal length lenses are arranged on the two surfaces of the fourth lens, and both the surfaces of the fourth lens are hyperbola aspheric surfaces. The fifth lens is a backward focal length lens, and both the surfaces of the fifth lens are hyperbola aspheric surfaces. The sixth lens is a backward focal length lens, and both the surfaces of the sixth lens are hyperbola aspheric surfaces.
Description
[technical field]
The present invention relates to a kind of optical lens, relate in particular to a kind of miniature video camera optical lens that is applied to high-pixel mobile phone, ultra-thin high picture element camera, this camera lens becomes overall plastic lens arrangement by six aspheric surface plastic cement lens combination.
[background technology]
The such shortcoming of mobile phone digital camera lens ubiquity of using at present: pixel is lower, physical dimension is larger.On market, the camera cell phone of present main flow is mainly the low configuration camera lens of 2,000,000,5,000,000 pixels, no matter captured image picture element is that whole sharpness or the aspects such as homogeneity of illumination is all not ideal enough, can only be used as standby picture or general appreciation, and be enough to far from print exquisite photo.
And camera cell phone is bigger than normal by the profile of digital camera lens, external diameter generally is greater than M8, and the optical system overall length is greater than 8mm, uses on built-in camera cell phone and seems that volume is larger, is difficult to reach ultra-thin effect.
The present invention, in order to overcome above shortcoming, has carried out a large amount of improvement.
[summary of the invention]
The present invention has overcome the deficiencies in the prior art, provides a kind of 1,300 ten thousand-2,500 ten thousand pixels, ultra-thin, volume is little, can be used for the high-pixel optical lens of digital camera and mobile phone.
In order to solve the technical matters of above-mentioned existence, the present invention has adopted following technical proposal:
High picture element wide-angle optical lens, it is characterized in that comprising lens barrel 1, the lens barrel front end is provided with diaphragm 2, in the cavity of lens barrel 1, is provided with successively from outside to inside first lens 3, the second lens 4, the 3rd lens 5, the 4th lens 6, the 5th lens 7, the 6th lens 8 after diaphragm; The corresponding spacer ring 9 that is provided with between described each adjacent lens; Described first lens 3 is the positive focal length lens, and its first surface towards object plane 31 is the ellipse aspheric surface, towards second 32 of image planes, is the hyperbolic curve aspheric surface; Two surfaces of the second lens 4 are the negative focal length lens of meniscus shape, and two surface is the hyperbolic curve aspheric surface; The 3rd lens 5 are the positive focal length lens, and its first surface towards object plane 51 is the hyperbolic curve aspheric surface, towards second 52 of image planes, are the ellipse aspheric surface; Two surfaces of the 4th lens 6 are the positive focal length lens, and two surface is the hyperbolic curve aspheric surface; The 5th lens 7 are the negative focal length lens, and two surface is the hyperbolic curve aspheric surface; The 6th lens 8 are the negative focal length lens, and two surface is the hyperbolic curve aspheric surface.
High picture element wide-angle optical lens as above, the system element characteristic that it is characterized in that described first lens, the 3rd lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens meets following formula :-2<f1/f2<2,-1<f3/f4<3,-2<f1/f6<2, vd P2≤31, vd P5≤31, vdP1-vd P2 > 25, vdP3-vd P2 > 25, vdP4-vd P2 > 25, vdP6-vd P2 > 25, vdP1-vd P5 > 25, vdP3-vd P5 > 25, vdP4-vd P5 > 25, vdP6-vd P5 > 25; Wherein, f1-f6 be followed successively by first, second, third and fourth, the focal length of five, six lens; The abbe number that vdP1 is first lens, the abbe number that vd P2 is the second lens, the abbe number that vd P3 is the 3rd lens, the abbe number that vd P4 is the 4th lens, the abbe number that vd P5 is the 5th lens, the abbe number that vd P6 is the 6th lens.
High picture element wide-angle optical lens as above, is characterized in that described first lens 3 is less than 2.0mm towards the radius-of-curvature of the first surface 31 of object plane.
High picture element wide-angle optical lens as above is characterized in that: described the 4th lens 6 are less than 1.5mm towards the radius-of-curvature of second 62 of image planes.
High picture element wide-angle optical lens as above is characterized in that: the aspheric surface configuration of described the first, second, third, fourth, the 5th and the 6th lens meets 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; In formula, parameter c is the corresponding 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 is less than-1, the face shape curve of lens is hyperbolic curve, and when k-factor equals-1, the face shape curve of lens is para-curve; When k-factor is between-1 to 0, the face shape curve of lens is oval, and when k-factor equals 0, the face shape curve of lens is circular, and when k-factor is greater than 0, the face shape curve of lens is oblate; α
1to α
8mean respectively the corresponding coefficient of each radial coordinate.
High picture element wide-angle optical lens as above is characterized in that: described first lens, the 3rd lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens are plastic lens.
The present invention compared with prior art has advantages of as follows:
1, more than camera lens can reach 1,300 ten thousand pixels, and existing miniature digital-mirror is 2,000,000,5,000,000 pixels as first.
2, whole even, the high brightness (f-number reaches F2.0) of illumination image planes of the present invention, and the most centers of existing miniature numerical digit camera lens are bright, surrounding is dark.
3, the present invention can realize the maximum wide-angle imaging to 90 degree.
4, sharpness of the present invention is high, color is clearly demarcated, and color reducibility is good.
5, the present invention can be for the CMOS sensitive film of 1300-3000 ten thousand pixels.
6, more crucial is because native system has adopted all-plastic structure, thus cost relatively and glass mould mixed structure and obtained great reduction, can make this product enter more widely consumer goods market.
[accompanying drawing explanation]
Fig. 1 is diagrammatic cross-section of the present invention.
Fig. 2 is decomposing schematic representation of the present invention.
[embodiment]
Below in conjunction with accompanying drawing, describe the present invention:
As shown in Figure 1, 2, high picture element wide-angle optical lens, can comprise lens barrel 1 for relatively cheap high pixel CMOS sensitive film 11, and the lens barrel front end is provided with mechanical aperture and forms diaphragm 2.In the cavity of lens barrel, be provided with successively first lens 3, the second lens 4, the 3rd lens 5, the 4th lens 6, the 5th lens 7, the 6th lens 8 after mechanical aperture.The corresponding spacer ring 9 that is provided with between described each adjacent lens.
Described first lens 3 is the positive focal length lens, and its first surface towards object plane 31 is the ellipse aspheric surface, towards second 32 of image planes, is the hyperbolic curve aspheric surface.Two surfaces of the second lens 4 are the negative focal length lens of meniscus shape, and two surface is the hyperbolic curve aspheric surface.For reducing the change in refraction angle of light between each lens, be controlled to image distortion, need to reduce the distance between first lens and the second lens on structure as far as possible.Distance between the second lens and the 3rd lens needs to increase as far as possible simultaneously.
The 3rd lens 5 are the positive focal length lens, and its first surface towards object plane 51 is the hyperbolic curve aspheric surface, towards second 52 of image planes, are the ellipse aspheric surface.Two surfaces of the 4th lens 6 are the positive focal length lens, and two surface is the hyperbolic curve aspheric surface.The 5th lens 7 are the negative focal length lens, and two surface is the hyperbolic curve aspheric surface.The 6th lens 8 are the negative focal length lens, and two surface is the hyperbolic curve aspheric surface, and the 6th lens adopt the hyperbolic curve aspheric surface, improve well curvature of field aberration.
The system element characteristic of described first lens 3, the 3rd lens 4, the 3rd lens 5, the 4th lens 6, the 5th lens 7, the 6th lens 8 meets following formula :-2<f1/f2<2 ,-1<f3/f4<3 ,-2<f1/f6<2, vd P2≤31, vd P5≤31, vdP1-vd P2 > 25, vdP3-vd P2 > 25, vdP4-vd P2 > 25, vdP6-vd P2 > 25, vdP1-vd P5 > 25, vdP3-vd P5 > 25, vdP4-vd P5 > 25, vdP6-vd P5 > 25.Wherein, f1-f6 be followed successively by first, second, third and fourth, the focal length of five, six lens.The abbe number that vdP1 is first lens, the abbe number that vd P2 is the second lens, the abbe number that vd P3 is the 3rd lens, the abbe number that vd P4 is the 4th lens, the abbe number that vd P5 is the 5th lens, the abbe number that vd P6 is the 6th lens.
In optical texture, focal length about eyeglass first lens 3 and the second lens 4 meets formula-2<f1/f2<2 o'clock, can solve focal length assignment problem and the tolerance balance of distribution problem of structure of the present invention, can effectively realize that system length is ultra-thin and reduce structural tolerance tender subject.
In optical texture, between lens, need to meet: vdP1-vd P2 25, vdP3-vd P2 > 25, vdP4-vd P2 > 25, vdP6-vd P2 > 25, vdP1-vd P5 > 25, vdP3-vd P5 > 25, vdP4-vd P5 > 25, vdP6-vd P5 > 25.Thereby this distribution and collocation can the excessive high-resolution possibilities in center that realizes of resolution system axial chromatic aberration.
Described the 6th lens also are provided with optical filter 10 towards that side of image space; light enters from optical filter 10; optical filter has certain protective effect to CMOS sensitive chip 11; also filter a part of light simultaneously and reduce veiling glare and hot spot etc., make image color beautiful and there is good color reducibility sharp keen the time.
The aperture diaphragm face is between optical system first lens 3 and the second lens 4, and it can reduce the susceptibility of system to the eccentricity of glasses lens manufacturing tolerance so that the eyeglass clear aperture of system is little simultaneously, thereby makes volume miniaturization and the easily mass production of optical system.
Described first lens is the aspheric surface of oblate shape towards first face of object space, and its radius-of-curvature is less than 2.0mm, and it can be so that the length of whole camera lens be as short as below 4.9mm most.The 4th lens are towards the 2nd the hyperbolic curve aspheric surface that face is oblate shape of image space, and its radius-of-curvature is less than 1.5mm, and it can be so that the length of whole camera lens be as short as below 4.9mm most.
The aspheric surface configuration of described the first, second, third, fourth, the 5th and the 6th lens meets 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.In formula, parameter c is the corresponding 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 is less than-1, the face shape curve of lens is hyperbolic curve, and when k-factor equals-1, the face shape curve of lens is para-curve; When k-factor is between-1 to 0, the face shape curve of lens is oval, and when k-factor equals 0, the face shape curve of lens is circular, and when k-factor is greater than 0, the face shape curve of lens is oblate; α
1to α
8mean respectively the corresponding coefficient of each radial coordinate.
Surface data gathers:
The surface data details:
Surface OBJ standard
Surface STO standard:
The edge thickness data:
The refractive index data::
System temperature: Celsius 20.0000
System pressure: atmospheric pressure 1.0000
Absolute air index: 1.000273 wavelength 0.546000 μ m
Index data is to carry out under above system temperature and pressure.
Measuring wavelength is to carry out at system temperature and pressure at above air.
The thermal expansivity data:
Claims (6)
1. high picture element wide-angle optical lens, it is characterized in that comprising lens barrel (1), the lens barrel front end is provided with diaphragm (2), in the cavity of lens barrel (1), be provided with successively from outside to inside first lens (3), the second lens (4), the 3rd lens (5), the 4th lens (6), the 5th lens (7), the 6th lens (8) after diaphragm; The corresponding spacer ring (9) that is provided with between described each adjacent lens; Described first lens (3) is the positive focal length lens, and its first surface towards object plane (31) is the ellipse aspheric surface, towards second (32) of image planes, is the hyperbolic curve aspheric surface; Two surfaces of the second lens (4) are the negative focal length lens of meniscus shape, and two surface is the hyperbolic curve aspheric surface; The 3rd lens (5) are the positive focal length lens, and its first surface towards object plane (51) is the hyperbolic curve aspheric surface, towards second (52) of image planes, are the ellipse aspheric surface; Two surfaces of the 4th lens (6) are the positive focal length lens, and two surface is the hyperbolic curve aspheric surface; The 5th lens (7) are the negative focal length lens, and two surface is the hyperbolic curve aspheric surface; The 6th lens (8) are the negative focal length lens, and two surface is the hyperbolic curve aspheric surface.
2. high picture element wide-angle optical lens according to claim 1, the system element characteristic that it is characterized in that described first lens, the 3rd lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens meets following formula :-2<f1/f2<2,-1<f3/f4<3,-2<f1/f6<2, vd P2≤31, vd P5≤31, vdP1-vd P2 > 25, vdP3-vd P2 > 25, vdP4-vd P2 > 25, vdP6-vd P2 > 25, vdP1-vd P5 > 25, vdP3-vd P5 > 25, vdP4-vd P5 > 25, vdP6-vd P5 > 25; Wherein, f1-f6 be followed successively by first, second, third and fourth, the focal length of five, six lens; The abbe number that vdP1 is first lens, the abbe number that vd P2 is the second lens, the abbe number that vd P3 is the 3rd lens, the abbe number that vd P4 is the 4th lens, the abbe number that vd P5 is the 5th lens, the abbe number that vd P6 is the 6th lens.
3. high picture element wide-angle optical lens according to claim 1 and 2, is characterized in that described first lens (3) is less than 2.0mm towards the radius-of-curvature of the first surface (31) of object plane.
4. high picture element wide-angle optical lens according to claim 1 and 2, it is characterized in that: the radius-of-curvature of described the 4th lens (6) towards second (62) of image planes is less than 1.5mm.
5. high picture element wide-angle optical lens according to claim 1 and 2, it is characterized in that: the aspheric surface configuration of described the first, second, third, fourth, the 5th and the 6th lens meets 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; In formula, parameter c is the corresponding 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 is less than-1, the face shape curve of lens is hyperbolic curve, and when k-factor equals-1, the face shape curve of lens is para-curve; When k-factor is between-1 to 0, the face shape curve of lens is oval, and when k-factor equals 0, the face shape curve of lens is circular, and when k-factor is greater than 0, the face shape curve of lens is oblate; α
1to α
8mean respectively the corresponding coefficient of each radial coordinate.
6. high picture element wide-angle optical lens according to claim 1 and 2, it is characterized in that: described first lens, the 3rd lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens are plastic lens.
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| CN201310400223.2A CN103454751B (en) | 2013-09-05 | 2013-09-05 | High-image-quality wide-angle optical camera lens |
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|---|---|---|---|
| CN201310400223.2A CN103454751B (en) | 2013-09-05 | 2013-09-05 | High-image-quality wide-angle optical camera lens |
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| CN103454751B CN103454751B (en) | 2015-07-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941395A (en) * | 2014-05-14 | 2014-07-23 | 中山联合光电科技有限公司 | Infrared confocal optical system with low temperature excursion, low cost and high pixel |
| CN103969811A (en) * | 2014-05-16 | 2014-08-06 | 中山联合光电科技有限公司 | Wide-angle optical lens applied to high-resolution mobile phone and ultra-thin high-image-quality camera |
| CN104459948A (en) * | 2014-12-20 | 2015-03-25 | 中山联合光电科技有限公司 | High-image-quality wide-angle optical lens |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012008357A1 (en) * | 2010-07-16 | 2012-01-19 | コニカミノルタオプト株式会社 | Image capture lens |
| CN202330843U (en) * | 2011-06-20 | 2012-07-11 | 大立光电股份有限公司 | Image pickup optical system |
| CN202916488U (en) * | 2012-10-20 | 2013-05-01 | 中山联合光电科技有限公司 | High-image quality micro aspheric optical lens with mixed lens structure |
| CN203444161U (en) * | 2013-09-05 | 2014-02-19 | 中山联合光电科技有限公司 | High image quality wide angle optical lens of full plastic aspherical lens structure |
-
2013
- 2013-09-05 CN CN201310400223.2A patent/CN103454751B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012008357A1 (en) * | 2010-07-16 | 2012-01-19 | コニカミノルタオプト株式会社 | Image capture lens |
| CN202330843U (en) * | 2011-06-20 | 2012-07-11 | 大立光电股份有限公司 | Image pickup optical system |
| CN202916488U (en) * | 2012-10-20 | 2013-05-01 | 中山联合光电科技有限公司 | High-image quality micro aspheric optical lens with mixed lens structure |
| CN203444161U (en) * | 2013-09-05 | 2014-02-19 | 中山联合光电科技有限公司 | High image quality wide angle optical lens of full plastic aspherical lens structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941395A (en) * | 2014-05-14 | 2014-07-23 | 中山联合光电科技有限公司 | Infrared confocal optical system with low temperature excursion, low cost and high pixel |
| CN103941395B (en) * | 2014-05-14 | 2016-08-17 | 中山联合光电科技有限公司 | A kind of Low Drift Temperature low cost infrared confocal optical system of high pixel |
| CN103969811A (en) * | 2014-05-16 | 2014-08-06 | 中山联合光电科技有限公司 | Wide-angle optical lens applied to high-resolution mobile phone and ultra-thin high-image-quality camera |
| CN103969811B (en) * | 2014-05-16 | 2016-03-02 | 中山联合光电科技有限公司 | A kind of wide-angle optical lens being applied to high-pixel mobile phone, ultra-thin high picture element camera |
| CN104459948A (en) * | 2014-12-20 | 2015-03-25 | 中山联合光电科技有限公司 | High-image-quality wide-angle optical lens |
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| CN103454751B (en) | 2015-07-01 |
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