CN207336904U - A kind of focal length ultra high-definition day and night confocal optical system - Google Patents
A kind of focal length ultra high-definition day and night confocal optical system Download PDFInfo
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- CN207336904U CN207336904U CN201721234665.4U CN201721234665U CN207336904U CN 207336904 U CN207336904 U CN 207336904U CN 201721234665 U CN201721234665 U CN 201721234665U CN 207336904 U CN207336904 U CN 207336904U
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Abstract
The utility model provides a kind of focal length ultra high-definition day and night confocal optical system, belong to technical field of optical, it includes the first lens set gradually along optical axis from object plane to image planes, second lens, 3rd lens, 4th lens, 5th lens, 6th lens and sensitive chip, diaphragm is set between second lens and the 3rd lens, first lens, second lens, 4th lens, 5th lens and the 6th lens are glass spherical lens, 3rd lens are plastic aspheric lenes, first lens, second lens, 3rd lens, 4th lens, the focal length of 5th lens and the 6th lens is followed successively by negative, just, it is negative, just, just, it is negative.The utility model optical system can not only overcome the deficiencies of eyeglass number in this kind of optical system is more, the resolution ratio under focal length is unsatisfactory, can also reduce camera lens volume, while can reduce production cost again.
Description
Technical field
The utility model belongs to technical field of optical, more particularly to a kind of focal length ultra high-definition day and night confocal optics system
System.
Background technology
With the rapid development of science and technology and the appearance of high sensitive chip, original video monitoring has been unable to meet the phase of people
Hope, remote high-definition monitoring becomes favorite of new generation.In the focal length camera lens used in monitoring, although before ensure that focal length
Carry, it is more or less there are problems that volume is big, quality weight, infrared confocal effect are undesirable or resolution ratio is low etc. some.
In order to make focal length optical lens more accord with the demands of the market, usual emphasis improves some deficiencies of optical lens, although there is some length
Burnt, infrared confocal optical lens is shown up prominently, but since the eyeglass number used in system is more so that the resolution ratio under focal length
It is unsatisfactory.Meanwhile also increase cost and volume, it is impossible to meet the expectation in market.
Publication No.CN106950683APatent disclose a kind of telephoto lens, its optical axis from thing side to image side successively
Distribution, has the first lens of positive light coke；The second lens with positive light coke；The 3rd lens with negative power；Tool
There are the 4th lens of negative power；The telephoto lens meets：0.55<EFL/TTL<1.65, wherein EFL are effective Jiao of system
Away from TTL is the optics overall length of system.The telephoto lens of the utility model is moved with single group eyeglass to realize focus, distortion and picture
Difference controls good, and length is short, and mirror lacks piece, and focusing load is small, and focusing speed easily ensures, while camera lens is small, and cost is low.The length
Zoom lens there are the defects of：Using 8 pieces of eyeglasses, volume is big, of high cost, and resolution ratio needs to be further improved, and cannot expire
Sufficient demand instantly.
Publication No.CN106707467APatent disclose a kind of telephoto lens, include successively from object plane to image planes：Tool
There are the first eyeglass (L1), the second eyeglass (L2) with negative power, the 3rd eyeglass with positive light coke of positive light coke
(L3), the 4th eyeglass (L4) with negative power, the 5th eyeglass (L5) with positive light coke and with positive light coke
Six eyeglasses (L6) form；It is provided with to be configured between wherein the second eyeglass (L2) and the 3rd eyeglass (L3) and provides set bore
Aperture diaphragm (STP)；Between the 6th eyeglass (L6) and imaging surface (IMG), protective glass (CG) and optical filter are configured with
(ICR)；At imaging surface (IMG), the light receiving surface of the solid-state imager of CCD and CMOS etc. is configured with, the 6th eyeglass (L6) is
Meniscus shaped lens simultaneously bends towards image space；Second eyeglass (L2), the 4th eyeglass (L4) are dense flint glass eyeglass；Described first
Eyeglass (L1), the 3rd eyeglass (L3), the 5th eyeglass (L5), the 6th eyeglass (L6) are low dispersion eyeglass.But the long lens
Nose heave amount is big, of high cost, and resolution ratio needs to be further improved.
The patent of Publication No. CN206387950U discloses a kind of long-focus day and night fixed focus monitoring camera lens, from thing side
Include successively to image side：The first lens with positive light coke, the second lens with positive light coke, with negative power
Three lens, the 4th lens, the 5th lens with negative power and the 6th lens with positive light coke with positive light coke,
Second lens with positive light coke and the 3rd lens gluing with negative power form first with positive light coke
Balsaming lens, the 4th lens with positive light coke and the glued formation of the 5th lens with negative power are with negative light focus
Second balsaming lens of degree, aperture diaphragm are arranged between the second balsaming lens and the 6th lens.Whole system is compact-sized, side
Civilian dress is matched somebody with somebody, good imaging quality, is reduced infrared light with respect to the defocusing amount of visible ray, be can reach day and night confocal purpose.But the mirror
Head is low there are resolving power, and distortion is high, and weight is big, it is of high cost the deficiencies of.
Utility model content
Insufficient present in focal length, day and night confocal optical system in order to overcome, the utility model will provide a kind of focal length, day
Night confocal optical system, the optical system can not only overcome eyeglass number in this optical system is more, the resolution ratio under focal length not
The deficiencies of most people's will, camera lens volume can also be reduced, while production cost can be reduced again.
In order to solve the above technical problems, technical solution is used by the utility model：
A kind of focal length ultra high-definition day and night confocal optical system, including first set gradually along optical axis from object plane to image planes are saturating
Mirror, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and sensitive chip, second lens and the 3rd
Diaphragm is set between lens, and first lens, the second lens, the 4th lens, the 5th lens and the 6th lens are glass sphere
Lens, the 3rd lens are plastic aspheric lenes, first lens, the second lens, the 3rd lens, the 4th lens,
The focal length of five lens and the 6th lens is followed successively by negative, positive, negative, positive, positive and negative.
Preferably, the object plane side of first lens is convex surface, and image planes side is concave surface；The object plane side of second lens is
Convex surface, image planes side are concave surface；The object plane side of 3rd lens is concave surface, and image planes side is convex surface；4th lens are biconvex
Lens；5th lens are biconvex lens；6th lens are biconcave lens.
Preferably, first lens are high dispersing lens；Second lens are high dispersing lens；3rd lens
For low dispersing lens；4th lens are ultra-low dispersion lens；5th lens are low dispersing lens；6th lens are height
Dispersing lens.
Preferably, the aspherical face type of the 3rd lens meets equation：
,
Wherein：C is the curvature corresponding to radius, and y is radial coordinate, the unit and length of lens unit phase of radial coordinate
Together, k is circular cone whose conic coefficient；
As k ＜ -1, the face shape curve of lens is hyperbola；
As k=- 1, the face shape curve of lens is parabola；
As -1 ＜ k ＜ 0, the face shape curve of lens is ellipse；
As k=0, the face shape curve of lens is circle；
As k ＞ 0, the face shape curve of lens is oblate；
~The coefficient corresponding to each radial coordinate is represented respectively.
Preferably, optical filter and sensitive chip protective glass are set gradually between the 6th lens and sensitive chip.
Compared with prior art, the beneficial effects of the utility model are as follows：
The utility model, should through the above technical solutions, provide a kind of focal length, the day and night confocal optical system of ultra high-definition
Optical system not only overcomes the deficiencies of eyeglass number in existing optical system is more, the resolution ratio under focal length is unsatisfactory, can be with
Camera lens volume is reduced, while production cost can be reduced again.In the utility model optical system, the first lens, the second lens,
Four lens, the 5th lens and the 6th mirror use glass spherical lens, using the stability of glass, reduce system to the quick of temperature
Sensitivity；3rd lens use plastic aspheric lens, and positive negative power collocation uses, mutually compensates for each parameter of lens, have
Effect the systemic resolution as caused by temperature change is improved to decline；First lens are high dispersion, the glass for having negative power
Lens, and its object plane side is convex surface, so as to can be not only the light that camera lens imports big field angle, can also efficiently control axis
To aberration；Second lens are high dispersion, the glass lens for having positive light coke, can not only increase the field angle of system, moreover it is possible to
Well in control system light tendency, while the distance between the second lens and diaphragm can be increased；The of 3rd lens
It is simultaneously that object plane side is concave surface, can not only makes rim ray and chief ray that there is preferable collimation, while also ensure master
Inclination angle of the light to optical axis；And the second face, that is, image planes side is convex surface, the field angle of optical system can be so improved, additionally it is possible to very
The curvature of field of correction system well, while the resolution ratio at image plane center and edge can be improved；4th lens are with positive light coke
Ultra-low dispersion spherical lens, control periphery chief ray incident well to the angle of the 5th lens, improve periphery illumination, together
When can balanced aberration, provide possibility to reach optimum image plane；5th lens are low dispersion spherical glass lens, and the 6th lens are tools
There are the low dispersion lens of negative power, two eyeglasses are glued to be used, and plays the effect of cemented doublet correction aberration, and
Efficiently solve diaphragm lens eccentricity sensitive issue nearby；Sensitive chip is equipped with after 6th lens, the sensitive chip
Resolution ratio can meet the different requirements of 200 ~ 6,000,000 pixels；Meanwhile between the 6th lens and sensitive chip, it is also equipped with filtering
Mating plate, can not only play a protective role sensitive chip, while can filter the veiling glare outside required wave band, so as to improve image quality.
The focal length of the utility model focal length ultra high-definition day and night confocal optical system is 8mm, while also ensures super-resolution
Rate；It can be achieved day and night confocal, it can be achieved that being monitored when 24 is small；, can be in the environment of -40 DEG C ~+80 DEG C using Design of Temperature Compensation
Work, not defocus.The form that the utility model optical system is combined using glass modeling, not only ensure that the performance of optical system, and
And cost can be reduced, simplify structure, mitigate weight, also help mass production, accord with the demands of the market.The utility model light
System is also optimized the position of diaphragm, diaphragm is arranged on the second lens while using ultra-low dispersion material
And the 3rd between lens, picture image quality is improved.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1：The structure diagram of the utility model focal length ultra high-definition day and night confocal optical system；
Fig. 2：The spherical aberration curve map of the utility model focal length ultra high-definition day and night confocal optical system；
Fig. 3：The utility model focal length ultra high-definition day and night curvature of field of confocal optical system and distortion curve figure；
Fig. 4：The chromatic curve figure of the utility model focal length ultra high-definition day and night confocal optical system；
Fig. 5：The MTF curve figure of the utility model focal length ultra high-definition day and night confocal optical system；
Wherein, the first lens of 1-, the second lens of 2-, the 3rd lens of 3-, the 4th lens of 4-, the 5th lens of 5-, 6- the 6th are saturating
Mirror, 7- sensitive chips, 8- diaphragms, 9- optical filters, 10- sensitive chip protective glass.
Embodiment
The utility model in order to better understand, further fairly sets out in the utility model with reference to embodiment
Hold, but the protection content of the utility model is not limited solely to the following examples.In the following description, a large amount of tools are given
The details of body more thoroughly understands in order to provide to the utility model.It is however, aobvious and easy to those skilled in the art
See, the utility model may not need one or more of these details and be carried out.
Refering to Fig. 1, a kind of focal length ultra high-definition day and night confocal optical system, is mixed with plastic lens by 6 pieces of glass and formed, and is wrapped
Include the first lens 1 set gradually along optical axis from object plane to image planes, the second lens 2, the 3rd lens 3, the 4th lens the 4, the 5th
Lens 5, the 6th lens 6 and sensitive chip 7, set diaphragm 8 between the second lens 2 and the 3rd lens 3.
First lens 1, the second lens 2, the 4th lens 4, the 5th lens 5 and the 6th lens 6 are spherical lens, and material is glass
Glass, the 3rd lens 3 are non-spherical lens, and material is plastic cement.
First lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, Jiao of the 5th lens 5 and the 6th lens 6
It is negative, positive, negative, positive, positive and negative away from being followed successively by.
The object plane side of first lens 1 is convex surface, and image planes side is concave surface, is meniscus lens；The thing of second lens 2
Surface side is convex surface, and image planes side is concave surface, is meniscus lens；The object plane side of 3rd lens 3 is concave surface, and image planes side is convex surface,
For meniscus lens；4th lens 4 are biconvex lens；5th lens 5 are biconvex lens；6th lens 6 are double
Concavees lens.
The first lens 1 are high dispersing lens in the utility model optical system；Second lens 2 are high dispersing lens；3rd
Lens 3 are low dispersing lens；4th lens 4 are ultra-low dispersion lens；5th lens 5 are low dispersing lens；6th lens 6 are height
Dispersing lens.
The aspherical face type of the 3rd lens 3 meets equation in the utility model optical system：
,
Wherein：C is the curvature corresponding to radius, and y is radial coordinate, the unit and length of lens unit phase of radial coordinate
Together, k is circular cone whose conic coefficient；
As k ＜ -1, the face shape curve of lens is hyperbola；
As k=- 1, the face shape curve of lens is parabola；
As -1 ＜ k ＜ 0, the face shape curve of lens is ellipse；
As k=0, the face shape curve of lens is circle；
As k ＞ 0, the face shape curve of lens is oblate；
~The coefficient corresponding to each radial coordinate is represented respectively.Can accurately it be set two before and after lens by above parameter
A aspherical geomery.
In the utility model optical system, the first lens 1 are high dispersion, the glass lens for having negative power, and its
Object plane side is convex surface, so as to can be not only the light that camera lens imports big field angle, can also efficiently control axial chromatic aberration；Together
When, for comparing glass lens due to glass lens, there is high temperature resistant, corrosion-resistant, damage resistant, so as to well
Protect camera lens, be camera lens under the factors such as assembling, transport, high temperature, low temperature, Qiang Guang, dust storm, be hardly damaged, so as to reach extension
The effect of service life.
Second lens 2 are high dispersion, the glass lens for having positive light coke, and the lateral image planes direction of its image planes is recessed, can not only
Enough increase the field angle of system, moreover it is possible to well in control system light tendency, while the second lens 2 and diaphragm can be increased
The distance between 8.
3rd lens 3 are the low dispersion aspherical plastic lens for having negative power, and the face type of 3 object plane side of the 3rd lens is
Oblate, its circular cone whose conic coefficient is satisfied by k ＞ 0；The face type of 3rd lens, 3 image planes side is oval, its circular cone conic section
Coefficient is satisfied by -1 ＜ k ＜ 0.First face of the 3rd lens 3, that is, object plane side is concave surface, can not only make rim ray and chief ray
With preferable collimation, while also ensure inclination angle of the chief ray to optical axis；And the second face, that is, image planes side is convex surface, such energy
Enough improve the field angle of optical system, additionally it is possible to the curvature of field of correction system well, while image plane center and edge can be improved
Resolution ratio.
Using after diaphragm 8 and close to the thermally sensitive characteristic of lens and the first lens 1,2 and of the second lens of diaphragm 8
The reasonable distribution of the focal power of 3rd lens 3, makes whole system in the case of temperature change, the variable quantity very little of focal power,
The systemic resolution as caused by temperature change is effectively improved to decline；Effective mouth of camera lens front end can also be efficiently controlled at the same time
Footpath and optic back focal, eliminate the senior aberration and distortion aberration of system.
First lens 1, the second lens 2 and the 3rd lens 3 use meniscus shaped lens, and the first lens 1, the second lens 2
For spherical lens, the 3rd lens 3 are non-spherical lens, and three is used cooperatively, and it is various not only to efficiently solve the aberration of system etc.
Aberration equalization problem, the appearance and size of element after can also reducing.
In order to reduce angle change when light reflects between each lens, reduce image deformation, therefore the utility model
Distance in structure between the first lens 1 as much as possible and the second lens 2.
4th lens 4 are the ultra-low dispersion spherical lenses for having positive light coke, control periphery chief ray incident well
To the angle of the 5th lens 5, periphery illumination, while the balanced aberration of energy are improved, possibility is provided to reach optimum image plane.
5th lens 5 are low dispersion spherical glass lens, and the 6th lens 6 are that have the low dispersion of negative power saturating
Mirror, two eyeglasses are glued to be used, and plays the effect of cemented doublet correction aberration, and efficiently solves diaphragm lens nearby
Eccentric sensitive issue.
In addition, being used cooperatively using high chromatic dispersion material and ultra-low dispersion material, also can well correct and be drawn by infrared light
The second order spectrum risen, optimizes axial chromatic aberration so that for camera lens under the conditions of white light and infrared light, it is clear to be obtained in image planes
Picture, so as to meet infrared confocal requirement.
Suitable eyeglass material, while the collocation lens shape of science are selected, camera lens is made in high temperature or low temperature ring with this
Under border, the drift distance of focus is minimum, so as to efficiently solve the resolution ratio decline or burnt caused by temperature change
Point drift problem；At the same time this not only can further reduce optical system under the conditions of infrared with existing Jiao under visible light conditions
Point offset, lifts infrared resolving power, can also taking by the second lens 2, the 3rd lens 3 and 4 three face type of the 4th lens
Match somebody with somebody, correct the astigmatism of system well, improve the resolution ratio of system.
In order to make camera lens reach the requirement of low temperature shift in high temperature or low temperature, in design, the first lens 1, second are saturating
Mirror 2, the 4th lens 4, the 5th lens 5 and the 6th mirror 6 use glass spherical lens, using the stability of glass, reduce system
To the susceptibility of temperature；3rd lens 3 use plastic aspheric lens, and positive negative power collocation uses, and makes each parameter of lens
Mutually compensate for, effectively improve the systemic resolution as caused by temperature change and decline.
Wherein：The focal length of first lens 1 is -13 ~ -11mm；The focal length of second lens 2 is 14 ~ 16mm；3rd lens 3
Focal length is -82 ~ -80mm；The focal length of 4th lens 4 is 9 ~ 11mm；The focal length of 5th lens 5 is 13 ~ 15mm；6th lens 6
Focal length is -8 ~ -6mm.Meanwhile the 5th the combined focal lengths of lens 5 and the 6th lens 6 be 43 ~ 45mm.
This optical system is designed using wide spectrum, and chromatic aberration correction is carried out in 400nm ~ 700nm spectral regions, not only makes figure
Picture color is beautiful and sharp keen, also with good color reducibility, the effect for making the effect of imaging directly be observed closer to human eye.
Meanwhile the near infrared spectrum aberration of 800nm ~ 940nm has been also corrected for, realize infrared confocal effect.
By object plane to image planes, sensitive chip 7 is equipped with after the 6th lens 6, the size of the sensitive chip is 1/2.7 ", differentiate
Rate can meet the different requirements of 200 ~ 6,000,000 pixels.Meanwhile between the 6th lens 6 and sensitive chip 7, it is also equipped with filtering
Piece 9, can not only play a protective role sensitive chip, while can filter the veiling glare outside required wave band, so as to improve image quality.
In addition, in design, the introduced aberration of the sensitive chip protective glass 10 of sensitive chip 7 has been taken into full account,
And corrected in the design process, so as to improve the quality of camera lens.
In the following, it is 8mm to enumerate a focal length, resolution ratio is 6,000,000 pixels, and mechanical overall length is within 22.6mm, can be -40
DEG C ~+80 DEG C in the environment of the actual design embodiment that works normally：
1 system data of table
2 asphericity coefficient of table~
| Number in face | |||||||
| 6 | 0 | 3.121e-04 | 4.805e-04 | -3.543e-04 | 8.169e-05 | -5.409e-06 | 0 |
| 7 | 0 | 5.386e-04 | -7.935e-05 | 5.740e-05 | -6.480e-06 | 1.839e-07 | 0 |
In above-mentioned Tables 1 and 2：
What face numbering 1 and 2 represented respectively is the first face and the second face of the first lens 1, and the material of the first lens 1 is H-
ZLAF76；
What face numbering 3 and 4 represented respectively is the first face and the second face of the second lens 2, and the material of the second lens 2 is H-
ZLAF76；
What face numbering 6 and 7 represented respectively is the first face and the second face of the 3rd lens 3, and the material of the 3rd lens 3 is
E48R；
What face numbering 8 and 9 represented respectively is the first face and the second face of the 4th lens 4, and the material of the 4th lens 4 is H-
FK61；
What face numbering 10 and 11 represented respectively is the first face and the second face of the 5th lens 5, and the material of the 5th lens 5 is H-
ZPK1；
What face numbering 11 and 12 represented respectively is the first face and the second face of the 6th lens 6, and the material of the 6th lens 6 is H-
ZF11；
What face numbering 13 and 14 represented respectively is the first face and the second face of optical filter 9, and the substrate material of optical filter 9 is H-
K9L。
Wherein, first face refers to the one side towards object plane side, and the second face refers to the one side towards image planes.
By using above technical scheme, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 sets forth the spherical aberration curve of optical system, field
Bent and distortion curve, chromatic curve and MTF curve, as seen from the figure, in 435nm ~ 656nm wide spectral ranges, the utility model
Optical system has that spherical aberration is small, the curvature of field is small, aberration is small, MTF curve intensity is high, and the above-mentioned performance output of optical system is bent
Line, embodies that the system image planes are smooth, the resolution ratio in 90% visual field is uniform, integrated optical excellent performance.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this area
Other modifications or equivalent substitution that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, should all cover among the right of the utility model.
Claims (5)
- A kind of 1. focal length ultra high-definition day and night confocal optical system, it is characterised in that：Including being set successively from object plane to image planes along optical axis The first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens and the sensitive chip put, described second Diaphragm, first lens, the second lens, the 4th lens, the 5th lens and the 6th lens are set between lens and the 3rd lens For glass spherical lens, the 3rd lens are plastic aspheric lenes, first lens, the second lens, the 3rd lens, The focal length of four lens, the 5th lens and the 6th lens is followed successively by negative, positive, negative, positive, positive and negative.
- 2. focal length ultra high-definition according to claim 1 day and night confocal optical system, it is characterised in that：First lens Object plane side is convex surface, and image planes side is concave surface；The object plane side of second lens is convex surface, and image planes side is concave surface；Described 3rd is saturating The object plane side of mirror is concave surface, and image planes side is convex surface；4th lens are biconvex lens；5th lens are biconvex lens； 6th lens are biconcave lens.
- 3. focal length ultra high-definition according to claim 1 day and night confocal optical system, it is characterised in that：First lens are High dispersing lens；Second lens are high dispersing lens；3rd lens are low dispersing lens；4th lens are super Low dispersing lens；5th lens are low dispersing lens；6th lens are high dispersing lens.
- 4. according to claim 1 ~ 3 any one of them focal length ultra high-definition day and night confocal optical system, it is characterised in that：Described The aspherical face type of three lens meets equation：,Wherein：C is the curvature corresponding to radius, and y is radial coordinate, and the unit of radial coordinate is identical with length of lens unit, and k is Circular cone whose conic coefficient；As k ＜ -1, the face shape curve of lens is hyperbola；As k=- 1, the face shape curve of lens is parabola；As -1 ＜ k ＜ 0, the face shape curve of lens is ellipse；As k=0, the face shape curve of lens is circle；As k ＞ 0, the face shape curve of lens is oblate；~The coefficient corresponding to each radial coordinate is represented respectively.
- 5. focal length ultra high-definition according to claim 1 day and night confocal optical system, it is characterised in that：6th lens with Optical filter and sensitive chip protective glass are set gradually between sensitive chip.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422463A (en) * | 2017-09-25 | 2017-12-01 | 河南翊轩光电科技有限公司 | A kind of focal length ultra high-definition day and night confocal optical system |
| TWI718377B (en) * | 2018-05-22 | 2021-02-11 | 先進光電科技股份有限公司 | Optical image capturing system |
| CN113866937A (en) * | 2021-09-03 | 2021-12-31 | 中国电子科技集团公司第十一研究所 | Infrared dual-waveband wide-angle athermal confocal plane optical system |
| TWI808084B (en) * | 2018-05-22 | 2023-07-11 | 先進光電科技股份有限公司 | Optical image capturing system |
-
2017
- 2017-09-25 CN CN201721234665.4U patent/CN207336904U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422463A (en) * | 2017-09-25 | 2017-12-01 | 河南翊轩光电科技有限公司 | A kind of focal length ultra high-definition day and night confocal optical system |
| CN107422463B (en) * | 2017-09-25 | 2022-07-15 | 河南翊轩光电科技有限公司 | Confocal optical system of clear day night of long burnt superelevation |
| TWI718377B (en) * | 2018-05-22 | 2021-02-11 | 先進光電科技股份有限公司 | Optical image capturing system |
| TWI808084B (en) * | 2018-05-22 | 2023-07-11 | 先進光電科技股份有限公司 | Optical image capturing system |
| CN113866937A (en) * | 2021-09-03 | 2021-12-31 | 中国电子科技集团公司第十一研究所 | Infrared dual-waveband wide-angle athermal confocal plane optical system |
| CN113866937B (en) * | 2021-09-03 | 2023-12-26 | 中国电子科技集团公司第十一研究所 | Infrared dual-band wide-angle athermal confocal plane optical system |
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