CN105589178B - A kind of high/low temperature is confocal, without veiling glare optical system - Google Patents
A kind of high/low temperature is confocal, without veiling glare optical system Download PDFInfo
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- CN105589178B CN105589178B CN201610170088.0A CN201610170088A CN105589178B CN 105589178 B CN105589178 B CN 105589178B CN 201610170088 A CN201610170088 A CN 201610170088A CN 105589178 B CN105589178 B CN 105589178B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
Abstract
The invention discloses a kind of high/low temperature it is confocal, without veiling glare optical system, be equipped with successively from object side to image side：First lens (1), first lens (1) are that focal length is negative glass spherical lens；Second lens (2), second lens (2) are that focal length is negative plastic aspheric lens；3rd lens (3), the 3rd lens (3) are that focal length is positive plastic aspheric lens；Diaphragm (100)；4th lens (4), the 4th lens (4) are that focal length is positive glass spherical lens；5th lens (5), the 5th lens (5) are that focal length is negative plastic aspheric lens；6th lens (6), the 6th lens (6) are that focal length is positive plastic aspheric lens；Sensitive chip (200).The configuration of the present invention is simple, high/low temperature is confocal, high pixel, small distortion, high saturating, wear-resisting, no veiling glare.
Description
【Technical field】
The present invention relates to a kind of optical system, more specifically a kind of high/low temperature is confocal, without veiling glare optical system.
【Background technology】
The shortcomings that monitoring at present, camera lens generally existing is such used in on-vehicle lens:Camera lens high/low temperature is not confocal；Ultra-wide angle mirror
The distortion of head is big；Image planes transmitance is inadequate, and there are colour casts；Camera lens easily scratches；Veiling glare seriously waits only a small number of camera lenses now,
In terms of some is improved in the case of sacrificing other aspects, for example in order to realize that high/low temperature is confocal and high pixel, use more
Eyeglass makes image planes that cannot meet consumer to drawing there are colour cast, veiling glare and ghost serious conditions even with lanthanum P series glass
Matter becomes clear, and salubrious requirement is also or the distortion of bugeye lens is not corrected at all, there is the defects of distortion is big
Therefore, the present invention be based on more than deficiency and generate.
【The content of the invention】
The present invention seeks to overcome the deficiencies in the prior art, provide a kind of simple in structure, high/low temperature is confocal, high pixel,
Small distortion, high saturating, wear-resisting, the optical system of no veiling glare ultra-wide angle.
The present invention is achieved by the following technical solutions：
A kind of high/low temperature is confocal, without veiling glare optical system, it is characterised in that：It is equipped with successively from object side to image side：
First lens 1, first lens 1 are that focal length is negative glass spherical lens；
Second lens 2, second lens 2 are that focal length is negative plastic aspheric lens；
3rd lens 3, the 3rd lens 3 are that focal length is positive plastic aspheric lens；
Diaphragm 100；
4th lens 4, the 4th lens 4 are that focal length is positive glass spherical lens；
5th lens 5, the 5th lens 5 are that focal length is negative plastic aspheric lens；
6th lens 6, the 6th lens 6 are that focal length is positive plastic aspheric lens；
Sensitive chip 200.
High/low temperature as described above is confocal, without veiling glare optical system, it is characterised in that：6th lens 6 with it is photosensitive
Protective glass 300 is equipped between chip 200.
High/low temperature as described above is confocal, without veiling glare optical system, it is characterised in that：First lens 1, second are thoroughly
2 and the 3rd lens 3 of mirror are meniscus shaped lens, and the 4th lens 4 and the 6th lens 6 are biconvex lens, and the described the 5th thoroughly
Mirror 5 is biconcave lens.
High/low temperature as described above is confocal, without veiling glare optical system, it is characterised in that：Second lens the 2, the 3rd are thoroughly
The aspherical surface shape of mirror 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 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 shape curve of lens is hyperbola, when k-factor is equal to -1, lens
Face shape curve be parabola；When k-factor is between -1 to 0, the face shape curve of lens is ellipse, when k-factor is equal to 0
When, the face shape curve of lens is circle, and when k-factor is more than 0, the face shape curve of lens is oblateness；α1To α8It represents respectively non-
Asphere coefficient.
Compared with prior art, the present invention has the following advantages：
1st, the present invention using a small amount of plastic aspherical element eyeglass plus the relatively low glass spheric glass of price, while when designing
The elimination of veiling glare and ghost is paid close attention to, so that lens transmission efficiency is significantly increased, veiling glare and ghost completely eliminate, and solve
Existing bugeye lens occurs that transmitance is low, and picture colour cast, veiling glare and ghost are serious generally using more pieces of spheric glass lens
Shortcoming.
2nd, the present invention has corrected distortion, make entire picture can blur-free imaging, solve the high pixel camera lens of existing ultra-wide angle
Because periphery distortion is larger, the shortcomings that there is picture accumulation, cannot be embodied so as to cause periphery resolution ratio.
3rd, high/low temperature focus of the invention overlaps, and realizes that image quality in the uniformity of varying environment, solves existing high pixel
Monitoring camera can not achieve in high/low temperature it is confocal, or in the case where generating white light room temperature (20 DEG C) to well defocused, under high and low temperature environment
There is the situation that serious focus is misaligned, and image planes obscure.
4th, the configuration of the present invention is simple, the lens performance produced is excellent, is suitble to promote and apply.
【Description of the drawings】
Fig. 1 is schematic diagram of the present invention.
【Specific embodiment】
The invention will be further described below in conjunction with the accompanying drawings：
A kind of high/low temperature is confocal, without veiling glare optical system, is equipped with successively from object side to image side：
First lens 1, first lens 1 are that focal length is negative glass spherical lens；
Second lens 2, second lens 2 are that focal length is negative plastic aspheric lens；
3rd lens 3, the 3rd lens 3 are that focal length is positive plastic aspheric lens；
Diaphragm 100；
4th lens 4, the 4th lens 4 are that focal length is positive glass spherical lens；
5th lens 5, the 5th lens 5 are that focal length is negative plastic aspheric lens；
6th lens 6, the 6th lens 6 are that focal length is positive plastic aspheric lens；
Sensitive chip 200.
Second lens 2, the 3rd lens 3, the 5th lens 5 and the 6th lens 6 are plastic aspheric lens, described
First lens 1 and the 4th lens 4 are glass spherical lens, and the corresponding coefficient of expansion of different materials is different, and designs difference
Face type, face type generates complementary when making high/low temperature, so that camera lens image quality in high/low temperature remains unchanged.The present invention uses 4
Glass lens and 2 sheet glass eyeglasses, number of lenses is few, and reasonably combined different eyeglass material, before camera lens image quality is ensured
It puts, using as far as possible few eyeglass so as to improve whole transmitance, lens transmission efficiency is significantly increased, veiling glare and ghost disappear completely
It removes.The present invention is using the collocation of the reasonable material of glass lens and glass lens, then the focal length positive-negative according to each lens, Ke Yihe
Reason distribution refractive index Nd and Abbe number Vd values, so as to select the specific material of corresponding eyeglass according to different refractive index and Abbe number
Matter；In addition, being designed using with 200 matched spectrum of sensitive chip, so as to ensure that the consistent of image quality, color and chip, realize
Entirely picture is homogeneous.
Protective glass 300 is equipped between 6th lens 6 and sensitive chip 200.
First lens 1, the second lens 2 and the 3rd lens 3 are meniscus shaped lens, the 4th lens 4 and the
Six lens 6 are biconvex lens, and the 5th lens 5 are biconcave lens, so that each piece of eyeglass all plays maximum effect,
So that the distortion very little of the present invention.And the concrete shape of each piece of lens also takes into account the attainable level of present technique, and do
To rational topology layout.
Second lens 2, the 3rd lens 3, the aspherical surface shape of the 5th lens 5 and the 6th lens 6 meet with
Lower equation：
In formula, parameter c is the curvature corresponding to radius, and y is radial coordinate, and 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 shape curve of lens is hyperbola, when k-factor is equal to -1, lens
Face shape curve be parabola；When k-factor is between -1 to 0, the face shape curve of lens is ellipse, when k-factor is equal to 0
When, the face shape curve of lens is circle, and when k-factor is more than 0, the face shape curve of lens is oblateness；α1To α8It represents respectively non-
Asphere coefficient.
Here is the actual design case of the present invention：
Wherein R corresponds to formula
The inverse of middle c, i.e. c=1/R.
The asphericity coefficient in each aspherical face：
| k | α2 | α3 | α4 | α5 | |
| S3 | 3.212 | 3.5E-003 | -2.1E-004 | 2.3E-006 | 8.3E-008 |
| S4 | -2.31 | 0.0161 | 9.8E-005 | -5.213E-005 | -1.898E-006 |
| S5 | 0.15 | -6.1E-004 | 3.89E-004 | -2.3E-005 | -9.8E-008 |
| S6 | -56.32 | 1.1E-002 | 6.5E-004 | -5.82E-004 | 2.376E-004 |
| S9 | 0.85 | 3.75E-003 | -4.1E-004 | -3.5E-004 | 2.3E-004 |
| S10 | -120 | 0.0016 | 7.31E-004 | -5.33E-005 | -6.32E-005 |
| S11 | -26 | 4.5E-003 | -1.233E-004 | 3.02E-005 | 1.35E-006 |
| S12 | -3.212 | -5.73E-003 | 2.9E-004 | 5.62E-005 | -8.5E-006 |
Claims (3)
1. a kind of high/low temperature is confocal, without veiling glare optical system, it is characterised in that：It is equipped with successively from object side to image side：
First lens (1), first lens (1) are that focal length is negative glass spherical lens；
Second lens (2), second lens (2) are that focal length is negative plastic aspheric lens；
3rd lens (3), the 3rd lens (3) are that focal length is positive plastic aspheric lens；
Diaphragm (100)；
4th lens (4), the 4th lens (4) are that focal length is positive glass spherical lens；
5th lens (5), the 5th lens (5) are that focal length is negative plastic aspheric lens；
6th lens (6), the 6th lens (6) are that focal length is positive plastic aspheric lens；
Sensitive chip (200)；First lens (1), the second lens (2) and the 3rd lens (3) are meniscus shaped lens, described
The 4th lens (4) and the 6th lens (6) be biconvex lens, the 5th lens (5) be biconcave lens；
First lens towards the surface (S1) of object side radius of curvature for 29.24, towards image side surface (S2) song
Rate radius is 5.68, and the effective diameter on first lens (1) towards the surface (S1) of object side is the 15.2, table towards image side
The effective diameter in face (S2) is 10.2, and the thickness of first lens (1) is 0.7；
The radius of curvature on second lens (2) towards the surface (S3) of object side is 12.4, the surface (S4) towards image side
Radius of curvature is 2.33, second lens (2) towards the surface (S3) of object side effective diameter for 9.96, towards image side
The effective diameter on surface (S4) is 6.9, and the spacing of second lens (2) and the first lens (1) is 1.8, described second
The thickness of lens (2) is 1.33；
The radius of curvature on surface (S5) of the 3rd lens (3) towards object side for 4.6, towards image side surface (S6) song
Rate radius is 9.6, and the effective diameter on surface (S5) of the 3rd lens (3) towards object side is the 6.7, surface towards image side
(S6) effective diameter is 3.76, and the spacing of the 3rd lens (3) and the second lens (2) is 2.23, and the described the 3rd thoroughly
The thickness of mirror (3) is 4.297；
The spacing of the diaphragm (100) and the 3rd lens (3) is 1.048, and the effective diameter of the diaphragm (100) is
2.73；
The radius of curvature on surface (S7) of the 4th lens (4) towards object side is 10.055, the surface (S8) towards image side
Radius of curvature for -3.997, the effective diameter on surface (S7) of the 4th lens (4) towards object side is 6.86, towards picture
The effective diameter on the surface (S8) of side is 6.86, and the spacing of the 4th lens (4) and diaphragm (100) is 0.029, described
The thickness of 4th lens (4) is 3.62；
The radius of curvature on surface (S9) of the 5th lens (5) towards object side for -4, towards image side surface (S10) song
Rate radius is 11, and the effective diameter on surface (S9) of the 5th lens (5) towards object side is the 3.51, surface towards image side
(S10) effective diameter is 4.275, and the spacing of the 5th lens (5) and the 4th lens (4) is the 0.104, the described the 5th
The thickness of lens (5) is 0.4；
The radius of curvature on surface (S11) of the 6th lens (6) towards object side is 5.4, the surface (S12) towards image side
Radius of curvature is -4, and the effective diameter on surface (S11) of the 6th lens (6) towards object side is 5.27, towards image side
The effective diameter on surface (S12) is 5.54, and the spacing of the 6th lens (6) and the 5th lens (5) is 0.13346, described
The 6th lens (6) thickness be 2.51.
2. high/low temperature according to claim 1 is confocal, without veiling glare optical system, it is characterised in that：6th lens
(6) protective glass (300) is equipped between sensitive chip (200).
3. high/low temperature according to claim 1 is confocal, without veiling glare optical system, it is characterised in that：Second lens
(2), the aspherical surface shape of the 3rd lens (3), the 5th lens (5) and the 6th lens (6) meets below equation： In formula, parameter c is
Curvature corresponding to radius, y are radial coordinate, and unit is identical with length of lens unit, and k is circular cone whose conic coefficient；Work as k
When coefficient is less than -1, the face shape curve of lens is hyperbola, and when k-factor is equal to -1, the face shape curve of lens is parabola；When
When k-factor is between -1 to 0, the face shape curve of lens is ellipse, and when k-factor is equal to 0, the face shape curve of lens is circle
Shape, when k-factor is more than 0, the face shape curve of lens is oblateness；α1To α8Asphericity coefficient is represented respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610170088.0A CN105589178B (en) | 2016-03-22 | 2016-03-22 | A kind of high/low temperature is confocal, without veiling glare optical system |
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| CN201610170088.0A CN105589178B (en) | 2016-03-22 | 2016-03-22 | A kind of high/low temperature is confocal, without veiling glare optical system |
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| CN105589178B true CN105589178B (en) | 2018-06-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106019540B (en) * | 2016-07-27 | 2018-10-09 | 广东弘景光电科技股份有限公司 | High pixel ultra-wide angle optical system and its camera lens of application |
| CN107741625A (en) * | 2017-10-12 | 2018-02-27 | 深圳市特莱斯光学有限公司 | A kind of low-cost and high-performance drive recorder camera lens |
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| CN203465464U (en) * | 2013-08-16 | 2014-03-05 | 凤凰光学(广东)有限公司 | High definition camera lens suitable for large temperature difference |
| CN103852870A (en) * | 2014-02-21 | 2014-06-11 | 襄阳锦翔光电科技股份有限公司 | Optical lens assembly |
| 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 |
| CN104777589A (en) * | 2015-04-10 | 2015-07-15 | 中山联合光电科技股份有限公司 | Optical system with high-low-temperature confocal performance, infrared confocal performance, high pixel, low cost and small distortion |
| JP2015190999A (en) * | 2014-03-27 | 2015-11-02 | 株式会社タムロン | Image formation optical system |
| CN105204140A (en) * | 2015-10-28 | 2015-12-30 | 东莞市宇瞳光学科技有限公司 | High-definition super wide angle prime lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866630B2 (en) * | 2006-03-02 | 2012-02-01 | アルプス電気株式会社 | Optical device |
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2016
- 2016-03-22 CN CN201610170088.0A patent/CN105589178B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203465464U (en) * | 2013-08-16 | 2014-03-05 | 凤凰光学(广东)有限公司 | High definition camera lens suitable for large temperature difference |
| CN103852870A (en) * | 2014-02-21 | 2014-06-11 | 襄阳锦翔光电科技股份有限公司 | Optical lens assembly |
| JP2015190999A (en) * | 2014-03-27 | 2015-11-02 | 株式会社タムロン | Image formation optical system |
| 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 |
| CN104777589A (en) * | 2015-04-10 | 2015-07-15 | 中山联合光电科技股份有限公司 | Optical system with high-low-temperature confocal performance, infrared confocal performance, high pixel, low cost and small distortion |
| CN105204140A (en) * | 2015-10-28 | 2015-12-30 | 东莞市宇瞳光学科技有限公司 | High-definition super wide angle prime lens |
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