CN109324392A - A kind of intermediate waves broadband infrared optical system and remote sensing optical device - Google Patents
A kind of intermediate waves broadband infrared optical system and remote sensing optical device Download PDFInfo
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- CN109324392A CN109324392A CN201811512495.0A CN201811512495A CN109324392A CN 109324392 A CN109324392 A CN 109324392A CN 201811512495 A CN201811512495 A CN 201811512495A CN 109324392 A CN109324392 A CN 109324392A
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- broadband infrared
- infrared optical
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- 230000003287 optical effect Effects 0.000 title claims abstract description 96
- 238000003384 imaging method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 43
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 15
- 239000011701 zinc Substances 0.000 claims description 15
- 229910052725 zinc Inorganic materials 0.000 claims description 15
- 239000002210 silicon-based material Substances 0.000 claims description 12
- KUHWWFKKPWYFKQ-UHFFFAOYSA-H magnesium silicon(4+) hexafluoride Chemical compound [Si+4].[F-].[Mg+2].[F-].[F-].[F-].[F-].[F-] KUHWWFKKPWYFKQ-UHFFFAOYSA-H 0.000 claims description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims 2
- 239000011669 selenium Substances 0.000 claims 2
- 229910052711 selenium Inorganic materials 0.000 claims 2
- 238000004073 vulcanization Methods 0.000 claims 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 238000013459 approach Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000003491 array Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 239000005083 Zinc sulfide Substances 0.000 description 9
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 9
- 230000005855 radiation Effects 0.000 description 5
- 230000004075 alteration Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
- G02B13/005—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having spherical lenses only
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
Abstract
Intermediate waves broadband infrared optical system and remote sensing optical device provided by the invention, using the Polaroid system configuration of straight barrel type, optical system is made of four spherical mirrors, all elements are arranged in same optical axis, have the characteristics that wide service band, compact-sized, the good, good imaging quality of suitable dress property, transmission function reach or approach diffraction limit.
Description
Technical field
The present invention relates to optical field, in particular to a kind of intermediate waves broadband infrared optical system and remote sensing optics are set
It is standby.
Background technique
Infrared optical system has many advantages, such as good environmental adaptability, concealment height, strong antijamming capability, is widely used in army
It is right as infrared optical system is using more and more in the every field such as thing, medical treatment, security protection, electric power, remote sensing and industry
Higher requirements are also raised for the design of infrared imaging system.
Since atmospheric window is distributed in 0.75~2.5 μm of near-infrared, 3~5 μm of medium-wave infrared and 8~14 μm of long wave
In infrared three wavelength bands.Traditional infrared imaging system general work wave band is relatively narrow, and the information content of acquisition is limited.Therefore,
In conjunction with the imaging characteristics of each wave band, sufficiently useful information can be obtained by working in broadband infrared optical system, can be kept away
Exempt from single wave band infrared system and obtain limitation existing for information, plays an important role in target acquisition and identification, still
The relatively narrow problem of the generally existing system service band of current infrared optical system, there is an urgent need to provide a kind of new optical system
To solve this problem.
Summary of the invention
The present invention provides a kind of intermediate waves broadband infrared optical system and remote sensing optical devices, have service band
It is wide, compact-sized, the characteristics of fitting dress property good, good imaging quality.
In a first aspect, the present invention provides a kind of intermediate waves broadband infrared optical system, including by object space to image space along light
Axis is arranged successively the first lens, the second lens, the third lens and the 4th lens of setting, and first lens are positive light focus
Lens are spent, second lens are negative-power lenses, and the third lens are negative-power lenses, and the 4th lens are positive
Power lenses.
It further include infrared detector as a kind of optional scheme, the infrared detector includes focus planar detector window
Mouth, focus planar detector diaphragm and imaging detector focal plane arrays (FPA).
As a kind of optional scheme, first lens are zinc sulphide materials, and second lens are IG4 material, institute
Stating the third lens is magnesium fluoride silicon materials, and the 4th lens are zinc sulphide materials.
As a kind of optional scheme, the optical parameter of the optical system are as follows:
As a kind of optional scheme, first lens are selenizing Zinc material, and second lens are IG4 material, institute
Stating the third lens is calcirm-fluoride silicon materials, and the 4th lens are zinc sulphide materials.
As a kind of optional scheme, the optical parameter of the optical system are as follows:
As a kind of optional scheme, first lens are selenizing Zinc material, and second lens are IG4 material, institute
Stating the third lens is calcirm-fluoride silicon materials, and the 4th lens are selenizing Zinc material.
As a kind of optional scheme, the optical parameter of the optical system are as follows:
As a kind of optional scheme, the focus planar detector is intermediate waves infrared focal plane array.
Second aspect, the present invention provide a kind of remote sensing optical device, and the remote sensing optical device has as short in above-mentioned
Wave broadband infrared optical system.
As can be seen from the above technical solutions, the invention has the following advantages that
Intermediate waves broadband infrared optical system and remote sensing optical device provided by the invention, it is Polaroid using straight barrel type
System configuration, optical system are made of four spherical mirrors, and all elements are arranged in same optical axis, knot wide with service band
The features such as structure is compact, the good, good imaging quality of suitable dress property, transmission function reach or approach diffraction limit.
Detailed description of the invention
Fig. 1 is a kind of structure chart of embodiment of intermediate waves broadband infrared optical system provided by the invention；
Fig. 2 is a kind of MTF curve figure of embodiment of intermediate waves broadband infrared optical system provided by the invention；
Fig. 3 is the structure chart of intermediate waves broadband infrared optical system another kind embodiment provided by the invention；
Fig. 4 is the MTF curve figure of intermediate waves broadband infrared optical system another kind embodiment provided by the invention；
Fig. 5 is the structure chart of intermediate waves broadband infrared optical system another embodiment provided by the invention；
Fig. 6 is the MTF curve figure of intermediate waves broadband infrared optical system another embodiment provided by the invention.
Appended drawing reference: 1 is the first lens, and 2 be the second lens, and 3 be the third lens；4 be the 4th lens, and 5 be infrared acquisition
Device, 51 be focus planar detector window, and 52 be focus planar detector diaphragm, and 53 be imaging detector focal plane arrays (FPA).
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Description and claims of this specification and term " first ", " second ", " third ", " in above-mentioned attached drawing
Four " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein or describing
Sequence other than appearance is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that covering is non-exclusive
Include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to clearly arrange
Those of out step or unit, but may include be not clearly listed or it is solid for these process, methods, product or equipment
The other step or units having.
As shown in connection with fig. 1, the present invention provides a kind of intermediate waves broadband infrared optical system, including by object space to image space edge
Optical axis is arranged successively the first lens, the second lens, the third lens and the 4th lens of setting, the parameter of four lens are as follows: the
One lens 1 are positive power lens；Second lens 2 are negative-power lenses；The third lens 3 are negative-power lenses；4th thoroughly
Mirror 4 is positive power lens, and using the Polaroid system configuration of straight barrel type, optical system is only made of four spherical mirrors, is owned
Element is arranged in same optical axis.
Infrared detector 5 includes focus planar detector window 51, focus planar detector diaphragm 52, imaging detector focal plane
Array 53, focus planar detector window 51 are based on infrared permeable material, such as silicon, germanium；Focal plane array is classified as intermediate waves focal plane
Array, focus planar detector diaphragm 52 are placed between window and focal plane arrays (FPA), are the emergent pupil of optical system, are determined focal plane
Array 53 receives the solid angle of target emanation, inhibits the stray light for reaching focal plane arrays (FPA), and focus planar detector 5 is that intermediate waves is red
Outer focal plane arrays (FPA), for 1.5 μm in electromagnetic spectrum~5 μm heat radiations to be imaged.
There are three types of the glass material collocation modes of four lens:
The first collocation are as follows: the first lens 1 are zinc sulphide materials, and the second lens 2 are IG4
(IRG24-SCHOTT) material, the third lens 3 are magnesium fluoride silicon materials, and the 4th lens 4 are zinc sulphide materials；
Second of collocation are as follows: the first lens 1 are selenizing Zinc material, and the second lens 2 are IG4
(IRG24-SCHOTT) material, the third lens 3 are calcirm-fluoride silicon materials, and the 4th lens 4 are zinc sulphide materials；
The third collocation are as follows: the first lens 1 are selenizing Zinc material, and the second lens 2 are IG4
(IRG24-SCHOTT) material, the third lens 3 are calcirm-fluoride silicon materials, and the 4th lens 4 are selenizing Zinc material.
A kind of intermediate waves broadband infrared optical system provided by the invention, using the Polaroid system configuration of straight barrel type,
Optical system is only made of four spherical mirrors, and all elements are arranged in same optical axis.After target heat radiation reaches optical system,
It is arranged successively from object space to image space along optical axis as the first lens 1, the second lens 2, the third lens 3, the 4th lens 4.Four lens
Parameter are as follows: the first lens 1 be positive power lens；Second lens 2 are negative-power lenses；The third lens 3 are negative power
Lens；4th lens 4 are positive power lens.5 be infrared detector, and 51 be focus planar detector window；52 visit for focal plane
Survey device diaphragm；53 be imaging detector focal plane arrays (FPA).The focus planar detector is intermediate waves broadband detector, includes
Window, diaphragm and focal plane arrays (FPA), focus planar detector window 51 are based on infrared permeable material, such as silicon, germanium；Focal plane arrays (FPA)
For intermediate waves focal plane arrays (FPA)；Focus planar detector diaphragm 52 is placed between window and focal plane arrays (FPA), is optical system
Emergent pupil determines that focal plane arrays (FPA) 53 receives the solid angle of target emanation, inhibits the stray light for reaching focal plane arrays (FPA).
Intermediate waves broadband infrared optical system provided by the invention, using the Polaroid system configuration of straight barrel type, optics
System is made of four spherical mirrors, and all elements are arranged in same optical axis, has wide, compact-sized, the suitable dress property of service band
The features such as good, good imaging quality, transmission function reach or approach diffraction limit.
In conjunction with shown in Fig. 1 and 2, the first embodiment of intermediate waves broadband infrared optical system provided by the invention:
After target heat radiation reaches optical system, it is arranged successively from object space to image space along optical axis as the first lens 1, second thoroughly
Mirror 2, the third lens 3, the 4th lens 4.The parameter of four lens are as follows: the first lens 1 are positive power lens, and front surface is convex
Spherical lens, rear surface are concave spherical surface lens；Second lens 2 are negative-power lenses, and front surface is concave spherical surface lens, rear table
Face is concave spherical surface lens；The third lens 3 are negative-power lenses, and front surface is protruding spherical lens, and rear surface is that concave spherical surface is saturating
Mirror；4th lens 4 are positive power lens, and front surface is protruding spherical lens, and rear surface is concave spherical surface lens.Described four thoroughly
The glass material of mirror is arranged in pairs or groups are as follows: the first lens 1 are zinc sulphide materials, and the second lens 2 are IG4
(IRG24-SCHOTT) material, the third lens 3 are magnesium fluoride silicon materials, and the 4th lens 4 are zinc sulphide materials；
According to the optical texture of Fig. 1, a set of straight barrel type intermediate waves infrared optical system is devised, service band image quality is being visited
Peripheral field MTF > 0.45 at device spatial frequency 33lp/mm is surveyed, systematic technical indicator is as follows:
Table 1 is the specific optical parameter of the embodiment of the present invention optical system.
Table 1.
In conjunction with shown in Fig. 3 and Fig. 4, second of embodiment of intermediate waves broadband infrared optical system provided by the invention:
After target heat radiation reaches optical system, it is arranged successively from object space to image space along optical axis as the first lens 1, second thoroughly
Mirror 2, the third lens 3, the 4th lens 4.The parameter of four lens are as follows: the first lens 1 are positive power lens, and front surface is convex
Spherical lens, rear surface are concave spherical surface lens；Second lens 2 are negative-power lenses, and front surface is concave spherical surface lens, rear table
Face is concave spherical surface lens；The third lens 3 are negative-power lenses, and front surface is protruding spherical lens, and rear surface is that concave spherical surface is saturating
Mirror；4th lens 4 are positive power lens, and front surface is protruding spherical lens, and rear surface is concave spherical surface lens.Described four thoroughly
The glass material of mirror is arranged in pairs or groups are as follows: the first lens 1 are selenizing Zinc material, and the second lens 2 are IG4
(IRG24-SCHOTT) material, the third lens 3 are calcirm-fluoride silicon materials, and the 4th lens 4 are zinc sulphide materials；
According to the optical texture of Fig. 3 and 4, a set of straight barrel type intermediate waves infrared optical system, service band image quality are devised
The peripheral field MTF > 0.5 at detector spatial frequency 33lp/mm, systematic technical indicator is as follows:
Table 2 is the specific optical parameter of the embodiment of the present invention optical system.
Table 2.
In conjunction with shown in Fig. 5 and Fig. 6, the third embodiment of intermediate waves broadband infrared optical system provided by the invention:
After target heat radiation reaches optical system, it is arranged successively from object space to image space along optical axis as the first lens 1, second thoroughly
Mirror 2, the third lens 3, the 4th lens 4.The parameter of four lens are as follows: the first lens 1 are positive power lens, and front surface is convex
Spherical lens, rear surface are protruding spherical lens；Second lens 2 are negative-power lenses, and front surface is concave spherical surface lens, rear table
Face is concave spherical surface lens；The third lens 3 are negative-power lenses, and front surface is protruding spherical lens, and rear surface is that concave spherical surface is saturating
Mirror；4th lens 4 are positive power lens, and front surface is protruding spherical lens, and rear surface is concave spherical surface lens.Described four thoroughly
The glass material of mirror is arranged in pairs or groups are as follows: and the first lens 1 are selenizing Zinc material, and the second lens 2 are IG4 (IRG24-SCHOTT) material, the
Three lens 3 are calcirm-fluoride silicon materials, and the 4th lens 4 are selenizing Zinc material.
According to Fig. 5 and Fig. 6, a set of straight barrel type intermediate waves infrared optical system is devised, service band image quality is being visited
Peripheral field MTF > 0.45 at device spatial frequency 33lp/mm is surveyed, systematic technical indicator is as follows:
Table 3 is the specific optical parameter of the embodiment of the present invention optical system.
Table 3.
The present invention is not limited to the above embodiments, and the first lens 1, the second lens 2, the third lens 3 and the 4th lens 4 may be used also
To use other kinds of lens, do not limit this.
Intermediate waves broadband infrared optical system provided by the invention has the advantage that
(1) service band is wide
The service band of infrared optical system proposed by the present invention is 1.5 μm~5 μm, avoids single wave band infrared system
Limitation existing for information is obtained, obtained information quantity and object recognition rate can be improved.
(2) compact-sized, it fits the good present invention of dress property and uses four spherical mirrors, straight barrel type configuration is compact-sized；Meanwhile light
Component in road is fixation member, and adjustment is simple, largely reduces the resetting difficulty of system.
(3) good imaging quality
The present invention utilizes the Proper Match of infrared optical material, and setting optimizes program to correct the primary aberration of optical system
And senior aberration, make image quality close to diffraction limit, performance is stablized.
Correspondingly, the present invention provides a kind of remote sensing optical device, and the remote sensing optical device has such as above-mentioned intermediate waves
Broadband infrared optical system, using the Polaroid system configuration of straight barrel type；Eyeglass is all made of spherical surface type, setting optimization program
It corrects the primary aberration and senior aberration of optical system, achievees the purpose that image quality optimizes.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), disk or CD etc..
A kind of intermediate waves broadband infrared optical system provided by the present invention and remote sensing optical device are carried out above
It is discussed in detail, for those of ordinary skill in the art, thought according to an embodiment of the present invention, in specific embodiment and application
There will be changes in range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of intermediate waves broadband infrared optical system, which is characterized in that including being arranged successively by object space to image space along optical axis
The first lens, the second lens, the third lens and the 4th lens being arranged, first lens are positive power lens, described
Second lens are negative-power lenses, and the third lens are negative-power lenses, and the 4th lens are positive power lens.
2. intermediate waves broadband infrared optical system according to claim 1, which is characterized in that further include infrared acquisition
Device, the infrared detector include focus planar detector window, focus planar detector diaphragm and imaging detector focal plane array
Column.
3. intermediate waves broadband infrared optical system according to claim 2, which is characterized in that first lens are sulphur
Change Zinc material, second lens are IG4 material, and the third lens are magnesium fluoride silicon materials, and the 4th lens are vulcanization
Zinc material.
4. intermediate waves broadband infrared optical system according to claim 3, which is characterized in that the light of the optical system
Learn parameter are as follows:
5. intermediate waves broadband infrared optical system according to claim 2, which is characterized in that first lens are selenium
Change Zinc material, second lens are IG4 material, and the third lens are calcirm-fluoride silicon materials, and the 4th lens are vulcanization
Zinc material.
6. intermediate waves broadband infrared optical system according to claim 5, which is characterized in that the light of the optical system
Learn parameter are as follows:
7. intermediate waves broadband infrared optical system according to claim 2, which is characterized in that first lens are selenium
Change Zinc material, second lens are IG4 material, and the third lens are calcirm-fluoride silicon materials, and the 4th lens are selenizing
Zinc material.
8. intermediate waves broadband infrared optical system according to claim 7, which is characterized in that the light of the optical system
Learn parameter are as follows:
9. intermediate waves broadband infrared optical system according to claim 2, which is characterized in that the focus planar detector
For intermediate waves infrared focal plane array.
10. a kind of remote sensing optical device, which is characterized in that the remote sensing optical device has such as any one of claims 1 to 9
The intermediate waves broadband infrared optical system.
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| CN201811512495.0A CN109324392B (en) | 2018-12-11 | 2018-12-11 | Medium-short wave broadband infrared optical system and remote sensing optical equipment |
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| CN201811512495.0A CN109324392B (en) | 2018-12-11 | 2018-12-11 | Medium-short wave broadband infrared optical system and remote sensing optical equipment |
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Cited By (3)
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| CN114002808A (en) * | 2021-10-25 | 2022-02-01 | 季华实验室 | Infrared imaging optical system |
| GB2608238A (en) * | 2021-04-23 | 2022-12-28 | Bae Sys Inf & Elect Sys Integ | MWIR lens for remote sensing |
| US11960064B2 (en) | 2021-08-23 | 2024-04-16 | Bae Systems Information And Electronic Systems Integration Inc. | MWIR lens system for wide area motion imagery |
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| US11855111B2 (en) | 2021-04-23 | 2023-12-26 | Bae Systems Information And Electronic Systems Integration Inc. | MWIR lens for remote sensing |
| US11960064B2 (en) | 2021-08-23 | 2024-04-16 | Bae Systems Information And Electronic Systems Integration Inc. | MWIR lens system for wide area motion imagery |
| CN114002808A (en) * | 2021-10-25 | 2022-02-01 | 季华实验室 | Infrared imaging optical system |
| CN114002808B (en) * | 2021-10-25 | 2023-06-30 | 季华实验室 | Infrared imaging optical system |
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