CN205427290U - Confocal, high pixel of high low temperature, little distortion, no parasitics light optical system - Google Patents
Confocal, high pixel of high low temperature, little distortion, no parasitics light optical system Download PDFInfo
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- CN205427290U CN205427290U CN201620228392.1U CN201620228392U CN205427290U CN 205427290 U CN205427290 U CN 205427290U CN 201620228392 U CN201620228392 U CN 201620228392U CN 205427290 U CN205427290 U CN 205427290U
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Abstract
The utility model discloses a confocal, high pixel of high low temperature, little distortion, no parasitics light optical system, accessory things side to picture side is equipped with in proper order: first lens (1), first lens (1) be the focus be the burden glass spherical lens, second lens (2), second lens (2) be the focus be the burden plastics aspherical lens, third lens (3), third lens (3) be that the focus is positive plastics aspherical lens, diaphragm (100), fourth lens (4), fourth lens (4) be that the focus is positive glass spherical lens, the 5th lens (5), the 5th lens (5) be the focus be the burden plastics aspherical lens, VI lenses (6), VI lenses (6) be that the focus is positive plastics aspherical lens, sensitization chip (200). The utility model discloses simple structure, high low temperature is confocal, high pixel, little distortion, high passing through, it is wear -resisting, no parasitics light.
Description
[technical field]
This utility model relate to a kind of optical system, more specifically high/low temperature pixel confocal, high, little distortion, without veiling glare optical system.
[background technology]
Monitoring at present, camera lens used by on-vehicle lens generally disadvantage is that camera lens high/low temperature is the most confocal；The distortion of bugeye lens is big；Image planes transmitance is inadequate, there is colour cast；Camera lens easily scratches；Veiling glare is serious. the most only minority camera lens, certain aspect is improved in the case of sacrificing other side, such as in order to realize, high/low temperature is confocal and high pixel, employ more eyeglass, image planes are made to there is colour cast, veiling glare and ghost serious conditions even with lanthanum P series glass, it is impossible to meet consumer and image quality is become clear, salubrious requirement is also or the distortion of bugeye lens is not the most corrected, and there is the defect that distortion is big.
Therefore, this utility model is based on above deficiency and produces.
[utility model content]
This utility model purpose is to overcome the deficiencies in the prior art, it is provided that a kind of simple in construction, and high/low temperature is confocal, high pixel, little distortion, high saturating, wear-resisting, without the optical system of veiling glare ultra-wide angle.
This utility model is achieved through the following technical solutions:
High/low temperature pixel confocal, high, little distortion, without veiling glare optical system, it is characterised in that: be sequentially provided with to image side from thing side:
First lens 1, the first described lens 1 be focal length be negative glass spherical lens；
Second lens 2, the second described lens 2 be focal length be negative plastic aspheric lens；
3rd lens 3, the 3rd described lens 3 be focal length be positive plastic aspheric lens；
Diaphragm 100；
4th lens 4, the 4th described lens 4 be focal length be positive glass spherical lens；
5th lens 5, the 5th described lens 5 be focal length be negative plastic aspheric lens；
6th lens 6, the 6th described lens 6 be focal length be positive plastic aspheric lens；
Sensitive chip 200.
High/low temperature pixel confocal, high as above, little distortion, without veiling glare optical system, it is characterised in that: be provided with between described the 6th lens 6 and sensitive chip 200 and protect glass 300.
High/low temperature pixel confocal, high as above, little distortion, without veiling glare optical system, it is characterized in that: first described lens the 1, second lens 2 and the 3rd lens 3 are meniscus lens, the 4th described lens 4 and the 6th lens 6 are biconvex lens, and the 5th described lens 5 are biconcave lens.
High/low temperature pixel confocal, high as above, little distortion, without veiling glare optical system, it is characterised in that: the second described lens the 2, the 3rd lens the 3, the 5th lens 5 and the aspherical surface shape of the 6th lens 6 meet below equation: In formula, parameter c is the curvature corresponding to radius, and y is radial coordinate, and its unit is identical with length of lens unit, and k is circular cone whose conic coefficient；When k-factor is less than-1, the face sigmoid curves of lens is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, and when k-factor is equal to 0, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face sigmoid curves of lens is oblate；α1To α8Represent the coefficient corresponding to each radial coordinate respectively.
Compared with prior art, this utility model has the following advantages:
1, this utility model uses a small amount of plastic aspherical element eyeglass to add the glass spherical lens that price is relatively low, paid close attention to the elimination of veiling glare and ghost during design simultaneously, so that lens transmission efficiency is significantly increased, veiling glare and ghost are completely eliminated, solve the commonly used many pieces of spherical glass eyeglasses of existing bugeye lens, occur that transmitance is low, picture colour cast, veiling glare and the serious shortcoming of ghost.
2, this utility model has corrected distortion, make whole picture can blur-free imaging, solve existing ultra-wide angle high pixel camera lens relatively big because of periphery distortion, occur that picture is piled up, thus cause the shortcoming that periphery resolution can not embody.
3, high/low temperature focus of the present utility model overlaps, realize the picture element concordance in varying environment, solve existing high pixel monitoring camera and can not realize confocal in high/low temperature, or to the most defocused under producing white light room temperature (20 DEG C), occur under high and low temperature environment that serious focus is misaligned, the situation that image planes are fuzzy.
4, this utility model simple in construction, the lens performance produced is excellent, is suitable for popularization and application.
[accompanying drawing explanation]
Fig. 1 is this utility model schematic diagram.
[detailed description of the invention]
Below in conjunction with the accompanying drawings this utility model is further described:
High/low temperature pixel confocal, high, little distortion, without veiling glare optical system, be sequentially provided with to image side from thing side:
First lens 1, the first described lens 1 be focal length be negative glass spherical lens；
Second lens 2, the second described lens 2 be focal length be negative plastic aspheric lens；
3rd lens 3, the 3rd described lens 3 be focal length be positive plastic aspheric lens；
Diaphragm 100；
4th lens 4, the 4th described lens 4 be focal length be positive glass spherical lens；
5th lens 5, the 5th described lens 5 be focal length be negative plastic aspheric lens；
6th lens 6, the 6th described lens 6 be focal length be positive plastic aspheric lens；
Sensitive chip 200.
The second described lens the 2, the 3rd lens the 3, the 5th lens 5 and the 6th lens 6 are plastic aspheric lens, the first described lens 1 and the 4th lens 4 are glass spherical lens, the coefficient of expansion that different materials is corresponding is different, and design different face types, when making high/low temperature, face type produces complementation, so that camera lens is held constant in high/low temperature time image quality guarantee.This utility model uses 4 glass lens and 2 sheet glass eyeglasses, and number of lenses is few, and reasonably combined different eyeglass material, under ensureing camera lens picture element premise, using the fewest eyeglass thus improve overall transmitance, make lens transmission efficiency be significantly increased, veiling glare and ghost are completely eliminated.This utility model uses the reasonable material collocation of glass lens and glass lens, then the focal length positive-negative according to each lens, with reasonable distribution refractive index Nd and Abbe number Vd value, thus can select the concrete material of corresponding eyeglass according to different refractive indexs and Abbe number；It addition, use the spectrum that mates with sensitive chip 200 to design, thus ensure that picture element, color are consistent with chip, it is achieved whole picture homogeneous.
Protection glass 300 it is provided with between described the 6th lens 6 and sensitive chip 200.
First described lens the 1, second lens 2 and the 3rd lens 3 are meniscus lens, the 4th described lens 4 and the 6th lens 6 are biconvex lens, the 5th described lens 5 are biconcave lens, so that each piece of eyeglass all plays maximum effect, so that distortion of the present utility model is the least.And the concrete shape of each piece of lens also takes into account the level that present technique can reach, and accomplish rational topology layout.
The second described lens the 2, the 3rd lens the 3, the 5th lens 5 and the aspherical surface shape of the 6th lens 6 meet below equation: In formula, parameter c is the curvature corresponding to radius, and y is radial coordinate, and its unit is identical with length of lens unit, and k is circular cone whose conic coefficient；When k-factor is less than-1, the face sigmoid curves of lens is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, and when k-factor is equal to 0, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face sigmoid curves of lens is oblate；α1To α8Represent the coefficient corresponding to each radial coordinate respectively.
Of the present utility model actual design case be presented herein below:
Wherein R correspondence formula The inverse of middle c, i.e. c=1/R.
The asphericity coefficient in each aspheric surface face:
Claims (4)
1. high/low temperature pixel confocal, high, little distortion, without veiling glare optical system, it is characterised in that: be sequentially provided with to image side from thing side:
First lens (1), described the first lens (1) be focal length be negative glass spherical lens；
Second lens (2), described the second lens (2) be focal length be negative plastic aspheric lens；
3rd lens (3), the 3rd described lens (3) be focal length be positive plastic aspheric lens；
Diaphragm (100)；
4th lens (4), the 4th described lens (4) be focal length be positive glass spherical lens；
5th lens (5), the 5th described lens (5) be focal length be negative plastic aspheric lens；
6th lens (6), the 6th described lens (6) be focal length be positive plastic aspheric lens；
Sensitive chip (200).
High/low temperature the most according to claim 1 pixel confocal, high, little distortion, without veiling glare optical system, it is characterised in that: be provided with between described the 6th lens (6) and sensitive chip (200) protection glass (300).
High/low temperature the most according to claim 1 and 2 pixel confocal, high, little distortion, without veiling glare optical system, it is characterized in that: described the first lens (1), the second lens (2) and the 3rd lens (3) are meniscus lens, the 4th described lens (4) and the 6th lens (6) are biconvex lens, and the 5th described lens (5) are biconcave lens.
High/low temperature the most according to claim 1 pixel confocal, high, little distortion, without veiling glare optical system, it is characterised in that: the aspherical surface shape of described the second lens (2), the 3rd lens (3), the 5th lens (5) and the 6th lens (6) meets below equation: In formula, parameter c is the curvature corresponding to radius, and y is radial coordinate, and its unit is identical with length of lens unit, and k is circular cone whose conic coefficient；When k-factor is less than-1, the face sigmoid curves of lens is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, and when k-factor is equal to 0, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face sigmoid curves of lens is oblate；α1To α8Represent the coefficient corresponding to each radial coordinate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620228392.1U CN205427290U (en) | 2016-03-22 | 2016-03-22 | Confocal, high pixel of high low temperature, little distortion, no parasitics light optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620228392.1U CN205427290U (en) | 2016-03-22 | 2016-03-22 | Confocal, high pixel of high low temperature, little distortion, no parasitics light optical system |
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| Publication Number | Publication Date |
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| CN205427290U true CN205427290U (en) | 2016-08-03 |
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| CN201620228392.1U Active CN205427290U (en) | 2016-03-22 | 2016-03-22 | Confocal, high pixel of high low temperature, little distortion, no parasitics light optical system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443970A (en) * | 2016-10-13 | 2017-02-22 | 广东弘景光电科技股份有限公司 | Low-distortion optical system and applied lens |
| CN107783256A (en) * | 2016-08-24 | 2018-03-09 | 株式会社理光 | Pick-up lens, camera apparatus, in-vehicle camera device, sensing device, vehicle-mounted sensing device |
| CN110297319A (en) * | 2018-03-22 | 2019-10-01 | 柯尼卡美能达株式会社 | Wide-angle lens, lens unit and filming apparatus |
| CN110967806A (en) * | 2018-09-30 | 2020-04-07 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN111273424A (en) * | 2020-01-20 | 2020-06-12 | 厦门力鼎光电股份有限公司 | Camera optical lens |
-
2016
- 2016-03-22 CN CN201620228392.1U patent/CN205427290U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783256A (en) * | 2016-08-24 | 2018-03-09 | 株式会社理光 | Pick-up lens, camera apparatus, in-vehicle camera device, sensing device, vehicle-mounted sensing device |
| CN106443970A (en) * | 2016-10-13 | 2017-02-22 | 广东弘景光电科技股份有限公司 | Low-distortion optical system and applied lens |
| CN106443970B (en) * | 2016-10-13 | 2019-03-26 | 广东弘景光电科技股份有限公司 | Low distorted optical system and its camera lens of application |
| CN110297319A (en) * | 2018-03-22 | 2019-10-01 | 柯尼卡美能达株式会社 | Wide-angle lens, lens unit and filming apparatus |
| CN110297319B (en) * | 2018-03-22 | 2021-12-14 | 柯尼卡美能达株式会社 | Wide-angle lens, lens unit, and imaging device |
| CN110967806A (en) * | 2018-09-30 | 2020-04-07 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN110967806B (en) * | 2018-09-30 | 2021-07-30 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN111273424A (en) * | 2020-01-20 | 2020-06-12 | 厦门力鼎光电股份有限公司 | Camera optical lens |
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