CN104535193A - Infrared focal plane detector component - Google Patents
Infrared focal plane detector component Download PDFInfo
- Publication number
- CN104535193A CN104535193A CN201410806279.2A CN201410806279A CN104535193A CN 104535193 A CN104535193 A CN 104535193A CN 201410806279 A CN201410806279 A CN 201410806279A CN 104535193 A CN104535193 A CN 104535193A
- Authority
- CN
- China
- Prior art keywords
- object lens
- dewar
- focal plane
- infrared
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses an infrared focal plane detector component. The infrared focal plane detector component comprises imaging optical parts, a cold shield and a dewar, wherein the imaging optical parts comprise an objective lens and a cold stop which are integrated in the interior of the dewar; the objective lens is arranged on the window of the dewar or bonded with the cold shield; the cold stop is arranged on the cold shield, and the cold shield and the window seat of the dewar are the support pieces of the imaging optical parts. The infrared focal plane detector component solves the problems of the low temperature, the miniaturization and the athermalization of an infrared optical system in the correlation technique, the infrared imaging optical parts are integrated in the detector dewar component and made to be in a constant low temperature environment, therefore the self-emitted radiation of the optical system can be effectively controlled, the adaptive capacity to environmental temperature variations is greatly improved, and the optical system is significantly superior to a conventional imaging system in volume and weight.
Description
Technical field
The present invention relates to field of photoelectric technology, particularly relate to a kind of detector module on focal plane of infrared ray.
Background technology
The application of this patent is mainly the infrared imaging system of space flight infrared imaging system and the small-sized platform lift-launch such as unmanned plane, guided missile.
Space is the low temperature environment of a high vacuum, about 3K, needs the echo signal of detection very faint.In the case, the background radiation of infrared optical system itself will have a strong impact on the sensitivity of infrared imaging system.For reducing this thermonoise, playing the effect of background limit detector, optical system and associated components thereof must be cooled to a certain degree. effectively to reduce background photon flux.Meanwhile, reduce the temperature of infrared optical system, also maskable is from the heat interference outside system, improves detection accuracy and sensitivity further.
On the other hand, along with the development of modern spationautics, conventional satellite starts the development of light to quality, that volume is little grapefruit satellite, and the task of this grapefruit satellite is single, with low cost, the lead time is short, risk is little, can launch by fast and flexible, one of emphasis becoming current research.Accordingly, grapefruit satellite it is also proposed the requirement of miniaturization to useful load.Equally, the platform such as unmanned plane, guided missile also has urgent demand to the miniaturization of useful load.As the pith of useful load, the miniaturization of infrared imaging system is significant.The volume and weight of infrared optical system accounts for significant proportion in whole infrared imaging system, but the visible wide several times of the wavelength ratio of infrared light, for equal ground resolution, due to the restriction of diffraction-limited, effective entrance pupil aperture several times larger than Visible imaging system of infrared imaging system.Therefore, the miniaturization realizing infrared optical system is very difficult.
Compared with visible light optical material, infrared optical material has very high refractive index temperature variation factor, and temperature variation is comparatively serious on the impact of infrared optical system performance, and picture element will be caused to decline and out of focus.Ensure optical system steady operation in wider temperature range, the impact of temperature on optical system must be eliminated.And under conventional design theory, can only adopt and complicated carry out in addition calibration and compensation without thermalization means.
For the low temperature of correlation technique mid-infrared light system, miniaturization and without thermalization problem, at present effective solution is not yet proposed.
Summary of the invention
For the low temperature of correlation technique mid-infrared light system, miniaturization and without thermalization problem, the invention provides a kind of detector module on focal plane of infrared ray, in order to solve the problems of the technologies described above.
According to an aspect of the present invention, the invention provides a kind of detector module on focal plane of infrared ray, wherein, comprising: imaging optics, cold screen, Dewar, wherein, described imaging optics comprises object lens and cold stop, is integrated in described Dewar inner; Described object lens are arranged on the window of described Dewar, or described object lens are bonded on described cold screen; Described cold stop is arranged on described cold screen; Wherein, the window seat of described cold screen and described Dewar is the support member of described imaging optics.
Preferably, the window of described Dewar adopts dull and stereotyped window; Described object lens are bonded on described cold screen, to ensure its correct optical position, and are freezed described object lens to equilibrium temperature by the conduction of described cold screen.
Preferably, described object lens comprise object lens 1, object lens 2, object lens 3; The window of described Dewar adopts described object lens 1, to expand the field angle of optical system; Described object lens 2, described object lens 3 are bonded on described cold screen, to ensure its correct optical position, and are freezed object lens to equilibrium temperature by the conduction of described cold screen.
Preferably, described imaging optics also comprises low temperature optical filter, is bonded on described cold screen, to ensure its correct optical position, and is freezed object lens to equilibrium temperature by the conduction of described cold screen.
Preferably, described detector module on focal plane of infrared ray also comprises: infrared imaging optical element, is encapsulated in the vacuum environment in the window seat of described Dewar.
Preferably, described cold stop is aperture diaphragm, to ensure the cold stop efficiency of 100%.
Preferably, described detector module on focal plane of infrared ray also comprises: described infrared eye, is bonded on cold head, to ensure its correct optical position.
Preferably, the design of described object lens and the outer optical system of described Dewar match and design.
Beneficial effect of the present invention is as follows:
Infrared imaging optics is integrated within detector Dewar component by the present invention, make it to be in constant low temperature environment, self radiation of optical system obtains effective control, the adaptive faculty of variation of ambient temperature is greatly improved, in volume, weight, is obviously better than conventional imaging systems simultaneously.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent, below especially exemplified by the specific embodiment of the present invention to allow above and other objects of the present invention, feature and advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the detector module on focal plane of infrared ray according to the embodiment of the present invention one;
Fig. 2 is the structural representation of the detector module on focal plane of infrared ray according to the embodiment of the present invention two.
Embodiment
In order to solve the low temperature of prior art mid-infrared light system, miniaturization and without thermalization problem, the invention provides a kind of detector module on focal plane of infrared ray, below in conjunction with accompanying drawing and embodiment, the present invention being further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
Embodiment one
Fig. 1 is the structural representation of the detector module on focal plane of infrared ray according to the embodiment of the present invention one, as shown in Figure 1, detector module on focal plane of infrared ray comprises: imaging optics, cold screen, Dewar, wherein, imaging optics comprises object lens and cold stop, is integrated in above-mentioned Dewar inner; Object lens are set to the window of above-mentioned Dewar, or above-mentioned object lens are bonded on above-mentioned cold screen; Cold stop is arranged on above-mentioned cold screen; Wherein, the window seat of above-mentioned cold screen and above-mentioned Dewar is the support member of above-mentioned imaging optics.
The setting position of object lens has two kinds of embodiments, a kind of window being object lens and being arranged on Dewar, and another kind is that object lens are bonded on cold screen.The present invention is introduced with two kinds of embodiments respectively, and embodiment one and Fig. 1 are introduced the first embodiment.
In the construction shown in fig. 1, the window of Dewar adopts dull and stereotyped window; Object lens are bonded on above-mentioned cold screen, to ensure its correct optical position, and are freezed above-mentioned object lens to equilibrium temperature by the conduction of above-mentioned cold screen.
Preferably, above-mentioned detector module on focal plane of infrared ray also comprises: infrared imaging optical element, is encapsulated in the vacuum environment in the window seat of above-mentioned Dewar.Above-mentioned cold stop is aperture diaphragm, to ensure the cold stop efficiency of 100%.Above-mentioned detector module on focal plane of infrared ray also comprises: above-mentioned infrared eye, is bonded on cold head, to ensure its correct optical position.The design of above-mentioned object lens and the outer optical system of above-mentioned Dewar match and design.
In FIG: 1. Dewar window, 2. Dewar window seat, 3. cold screen, 4. cold stop, 5. object lens, 6. infrared focal plane detector.The concrete structure of detector module on focal plane of infrared ray is as follows:
(1) dewar window adopts dull and stereotyped window.
(2) all infrared imaging optical elements are all encapsulated in the vacuum environment in window seat.
(3) image-forming objective lens is bonded on cold screen, ensures its correct optical position, and by the conduction of cold screen, object lens are freezed to stable low temperature.
(4) cold stop on cold screen is the aperture diaphragm of system, ensures the cold stop efficiency of 100%.
(5) infrared eye is bonded on cold head, ensures its correct optical position.
(6) design of image-forming objective lens can match with the outer optical system of Dewar and design, reduces the incident angle of marginal ray, improves the homogeneity that infrared focal plane detector responds.
Embodiment two
The second embodiment of the present embodiment to above-mentioned object lens is introduced.Fig. 2 is the structural representation of the detector module on focal plane of infrared ray of the embodiment of the present invention two, and as shown in Figure 2, object lens comprise object lens 1, object lens 2, object lens 3; The window of Dewar adopts above-mentioned object lens 1, to expand the field angle of optical system; Object lens 2, above-mentioned object lens 3 are bonded on cold screen, to ensure its correct optical position, and are freezed object lens to equilibrium temperature by the conduction of above-mentioned cold screen.Imaging optics also comprises low temperature optical filter, is bonded on above-mentioned cold screen, to ensure its correct optical position, and is freezed object lens to equilibrium temperature by the conduction of above-mentioned cold screen.
Preferably, detector module on focal plane of infrared ray also comprises: infrared imaging optical element, is encapsulated in the vacuum environment in the window seat of above-mentioned Dewar.Cold stop is aperture diaphragm, to ensure the cold stop efficiency of 100%.Detector module on focal plane of infrared ray also comprises: above-mentioned infrared eye, is bonded on cold head, to ensure its correct optical position.The design of above-mentioned object lens and the outer optical system of above-mentioned Dewar match and design.
In fig. 2: 1. object lens 1,2. Dewar window seat, 3. object lens 2,4. cold stop, 5. object lens 3,6. cold screen, 7. low temperature optical filter, 8. infrared focal plane detector.The concrete structure of detector module on focal plane of infrared ray is as follows:
(1) dewar window adopts image-forming objective lens 1, can expand the field angle of optical system.
(2) all infrared imaging optical elements are all encapsulated in the vacuum environment in window seat.
(3) image-forming objective lens 2, object lens 3 are bonded on cold screen, ensure its correct optical position, and by the conduction of cold screen, object lens are freezed to stable low temperature.
(4) low temperature optical filter is bonded on cold screen, ensures its correct optical position, and by the conduction of cold screen, object lens are freezed to stable low temperature.
(5) cold stop on cold screen is the aperture diaphragm of system, ensures the cold stop efficiency of 100%.
(6) infrared eye is bonded on cold head, ensures its correct optical position.
(7) design of image-forming objective lens can match with the outer optical system of Dewar and design, reduces the incident angle of marginal ray, improves the homogeneity that infrared focal plane detector responds.
The object of the invention is development optics integrated infrared focus planardetector assembly, imaging optics is integrated in Dewar inside, reduces the heat radiation of optical system, and then reduce detector ground unrest, improve system looks ability and sensitivity.Meanwhile, make the working temperature of optical system keep stable, and realize Miniaturization Design.
The present invention mainly comprises following three aspects:
1) cryogenic optics design
For the impact of optics own radiation on detector signal to noise ratio (S/N ratio), design Cryogenic Optical System, can work at low ambient temperatures, to reduce background radiation, improves detection sensitivity.For meeting spatial dimensional requirement, be short focus, Large visual angle system by Optical System Design.System is made up of object lens, cold stop and low temperature optical filter, and cold stop is the aperture diaphragm of system, ensures the cold stop efficiency of 100%, with Background suppression noise well.
2) integrated with Dewar optical structure design
Optical structure design and Dewar structure design are combined, using cold screen and window seat as the support member of optical mirror slip, optical element is arranged on standard IR detector Dewar component inner.Ensure there is correct relative position relation between each optical element, and ensure the physical dimension not changing standard Dewar.While carrying out structural design, carry out the design of Dewar internal heat.The change that the present invention occurs in heat load comprises: the increase of object lens thermal mass, the increase of window swept area.By at the inner integrated optical element of Dewar, reduce the incident angle of marginal ray, cold screen height can be reduced thus, and then reduce the thermal mass of cold screen and the swept area of cold screen.Two aspect factors are combined, by simulation analysis and optimal design, ensures that overall heat consumption of the present invention does not increase, realize sharing former refrigeration machine.Finally, physical dimension of the present invention is identical with standard IR detector assembly, enhances versatility of the present invention.
3) Cryogenic Optical System simulation analysis
The optical system worked under low-temperature condition needs to solve series of problems, and these problems relate to changes in material properties, optical element distortion, the change of optical system overall performance etc.For overcoming the above problems, the present invention carries out simulation analysis to the optics be under low temperature environment, first finite element analysis software calculating optical system temperature field at low temperatures, distortion, displacement is adopted, then carry it in optical analysis software, analyze various factors to the impact of Performance of Optical System.According to simulation analysis result, optical design and structural design are improved, ensure that eyeglass temperature field is even, position stability, finally make whole system image quality at low temperatures best.
Optical system is integrated within detector Dewar component by the present invention, solves the low temperature of infrared optical system, miniaturization and without thermalization problem simultaneously.The present invention can be widely used in the spaceborne infrared detection system such as missile warning, meteorology, resources remote sensing, and is conducive to carrying in the kinds of platform such as moonlet, infrared seeker, SUAV (small unmanned aerial vehicle), improves the dirigibility of task, reduces the cost of task.The present invention also can be used for wide visual field infrared imaging field, the infrared and field such as reconnaissance system, airborne photoelectric early warning of such as optronic fire control system, Air-borne Forward-looking.
Although be example object, disclose the preferred embodiments of the present invention, it is also possible for those skilled in the art will recognize various improvement, increase and replacement, and therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (8)
1. a detector module on focal plane of infrared ray, is characterized in that, comprising: imaging optics, cold screen, Dewar, wherein,
Described imaging optics comprises object lens and cold stop, is integrated in described Dewar inner;
Described object lens are arranged on the window of described Dewar, or described object lens are bonded on described cold screen;
Described cold stop is arranged on described cold screen; Wherein, the window seat of described cold screen and described Dewar is the support member of described imaging optics.
2. detector module on focal plane of infrared ray as claimed in claim 1, is characterized in that,
The window of described Dewar adopts dull and stereotyped window;
Described object lens are bonded on described cold screen, to ensure its correct optical position, and are freezed described object lens to equilibrium temperature by the conduction of described cold screen.
3. detector module on focal plane of infrared ray as claimed in claim 1, it is characterized in that, described object lens comprise object lens 1, object lens 2, object lens 3;
The window of described Dewar adopts described object lens 1, to expand the field angle of optical system;
Described object lens 2, described object lens 3 are bonded on described cold screen, to ensure its correct optical position, and are freezed object lens to equilibrium temperature by the conduction of described cold screen.
4. detector module on focal plane of infrared ray as claimed in claim 3, is characterized in that,
Described imaging optics also comprises low temperature optical filter, is bonded on described cold screen, to ensure its correct optical position, and is freezed object lens to equilibrium temperature by the conduction of described cold screen.
5. the detector module on focal plane of infrared ray according to any one of Claims 1-4, is characterized in that, described detector module on focal plane of infrared ray also comprises: infrared imaging optical element, is encapsulated in the vacuum environment in the window seat of described Dewar.
6. the detector module on focal plane of infrared ray according to any one of Claims 1-4, is characterized in that, described cold stop is aperture diaphragm, to ensure the cold stop efficiency of 100%.
7. the detector module on focal plane of infrared ray according to any one of Claims 1-4, is characterized in that, described detector module on focal plane of infrared ray also comprises: described infrared eye, is bonded on cold head, to ensure its correct optical position.
8. the detector module on focal plane of infrared ray according to any one of Claims 1-4, is characterized in that, the design of described object lens and the outer optical system of described Dewar match and design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806279.2A CN104535193A (en) | 2014-12-22 | 2014-12-22 | Infrared focal plane detector component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410806279.2A CN104535193A (en) | 2014-12-22 | 2014-12-22 | Infrared focal plane detector component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104535193A true CN104535193A (en) | 2015-04-22 |
Family
ID=52850768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410806279.2A Pending CN104535193A (en) | 2014-12-22 | 2014-12-22 | Infrared focal plane detector component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104535193A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486411A (en) * | 2015-11-20 | 2016-04-13 | 中国电子科技集团公司第十一研究所 | Molding method of integrated cold shield for infrared detector |
| CN105928621A (en) * | 2016-04-18 | 2016-09-07 | 中国电子科技集团公司第十研究所 | Double-band infrared detector assembly |
| CN106404188A (en) * | 2016-08-26 | 2017-02-15 | 淄博博山新颖传感器厂 | Anti-compression impact-resistant pyroelectric infrared detector |
| CN106443981A (en) * | 2016-06-12 | 2017-02-22 | 中国科学院上海技术物理研究所 | Large relative aperture refrigeration type infrared optical lens |
| CN107340061A (en) * | 2017-05-31 | 2017-11-10 | 中国电子科技集团公司第十研究所 | A kind of infrared detector ice chest |
| CN108507687A (en) * | 2018-02-09 | 2018-09-07 | 中国科学院长春光学精密机械与物理研究所 | A kind of infrared Hartmann wave front sensor |
| CN109407289A (en) * | 2017-08-17 | 2019-03-01 | 北京遥感设备研究所 | A kind of refraction-reflection type Low emissivity optical system for remote low background detections |
| CN110308504A (en) * | 2019-06-20 | 2019-10-08 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Cold stop and detector system |
| CN110987196A (en) * | 2019-12-19 | 2020-04-10 | 武汉高芯科技有限公司 | Infrared detector assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240143Y (en) * | 1995-11-24 | 1996-11-13 | 中国科学院上海技术物理研究所 | Variable background refrigeration liquid nitrogen metal dewar bottle for infrared detector |
| US5812309A (en) * | 1993-08-17 | 1998-09-22 | Steinheil Optronik Gmbh | Infrared objective |
| CN1327164A (en) * | 2001-04-25 | 2001-12-19 | 中国科学院上海技术物理研究所 | Optical system for infrared focal plane imaging |
| CN2837747Y (en) * | 2005-07-11 | 2006-11-15 | 中国科学院上海技术物理研究所 | Minisize low-temperature metal Dewar for infrared focal plane detector |
| CN201698079U (en) * | 2010-05-19 | 2011-01-05 | 福建福光数码科技有限公司 | Medium wave infrared reconnaissance tracking lens |
| CN102928088A (en) * | 2012-11-01 | 2013-02-13 | 中国科学院上海技术物理研究所 | Poly-lens profound hypothermia infrared detector pipe casing structure packaged in Dewar |
| CN104155009A (en) * | 2014-07-28 | 2014-11-19 | 武汉振光科技有限公司 | Infrared optical system and infrared optical equipment |
-
2014
- 2014-12-22 CN CN201410806279.2A patent/CN104535193A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5812309A (en) * | 1993-08-17 | 1998-09-22 | Steinheil Optronik Gmbh | Infrared objective |
| CN2240143Y (en) * | 1995-11-24 | 1996-11-13 | 中国科学院上海技术物理研究所 | Variable background refrigeration liquid nitrogen metal dewar bottle for infrared detector |
| CN1327164A (en) * | 2001-04-25 | 2001-12-19 | 中国科学院上海技术物理研究所 | Optical system for infrared focal plane imaging |
| CN2837747Y (en) * | 2005-07-11 | 2006-11-15 | 中国科学院上海技术物理研究所 | Minisize low-temperature metal Dewar for infrared focal plane detector |
| CN201698079U (en) * | 2010-05-19 | 2011-01-05 | 福建福光数码科技有限公司 | Medium wave infrared reconnaissance tracking lens |
| CN102928088A (en) * | 2012-11-01 | 2013-02-13 | 中国科学院上海技术物理研究所 | Poly-lens profound hypothermia infrared detector pipe casing structure packaged in Dewar |
| CN104155009A (en) * | 2014-07-28 | 2014-11-19 | 武汉振光科技有限公司 | Infrared optical system and infrared optical equipment |
Non-Patent Citations (1)
| Title |
|---|
| 《红外与激光工程》编辑部: "《光学系统设计》", 31 March 2004 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486411A (en) * | 2015-11-20 | 2016-04-13 | 中国电子科技集团公司第十一研究所 | Molding method of integrated cold shield for infrared detector |
| CN105486411B (en) * | 2015-11-20 | 2018-07-17 | 中国电子科技集团公司第十一研究所 | A kind of cold screen shaping method of infrared detector one |
| CN105928621A (en) * | 2016-04-18 | 2016-09-07 | 中国电子科技集团公司第十研究所 | Double-band infrared detector assembly |
| CN106443981A (en) * | 2016-06-12 | 2017-02-22 | 中国科学院上海技术物理研究所 | Large relative aperture refrigeration type infrared optical lens |
| CN106443981B (en) * | 2016-06-12 | 2019-03-01 | 中国科学院上海技术物理研究所 | A kind of object lens of large relative aperture refrigeration mode infrared optical lens |
| CN106404188B (en) * | 2016-08-26 | 2017-09-19 | 淄博博山新颖传感器厂 | A kind of resistance to compression shock resistance pyroelectric infrared detector |
| CN106404188A (en) * | 2016-08-26 | 2017-02-15 | 淄博博山新颖传感器厂 | Anti-compression impact-resistant pyroelectric infrared detector |
| CN107340061A (en) * | 2017-05-31 | 2017-11-10 | 中国电子科技集团公司第十研究所 | A kind of infrared detector ice chest |
| CN107340061B (en) * | 2017-05-31 | 2020-01-24 | 中国电子科技集团公司第十一研究所 | Infrared detector cold box |
| CN109407289A (en) * | 2017-08-17 | 2019-03-01 | 北京遥感设备研究所 | A kind of refraction-reflection type Low emissivity optical system for remote low background detections |
| CN108507687A (en) * | 2018-02-09 | 2018-09-07 | 中国科学院长春光学精密机械与物理研究所 | A kind of infrared Hartmann wave front sensor |
| CN110308504A (en) * | 2019-06-20 | 2019-10-08 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Cold stop and detector system |
| CN110987196A (en) * | 2019-12-19 | 2020-04-10 | 武汉高芯科技有限公司 | Infrared detector assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104535193A (en) | Infrared focal plane detector component | |
| US9110276B2 (en) | Full-field GEO imager optics with extended spectral coverage | |
| EP3004958B1 (en) | Optical configuration for a compact integrated day/night viewing and laser range finding system | |
| Miller et al. | Design challenges regarding high-definition electro-optic/infrared stabilized imaging systems | |
| Gerken et al. | Military reconnaissance platform for the spectral range from the visible to the MWIR | |
| IL270713A (en) | Two-color inverse telephoto refractive optical form with external pupil for cold shielding | |
| Petrushevsky et al. | Common aperture multispectral spotter camera: Spectro XR | |
| CN106896484B (en) | Large-caliber mechanical passive athermal infrared telephoto lens and use method thereof | |
| CN219758574U (en) | Image shift compensation optical system and aerial remote sensing system | |
| Wu et al. | A method to determine the parameters of infrared camera in the electron optic tracking system of UAV | |
| Nadav et al. | Uncooled infrared sensor technology for hostile fire indication systems | |
| CN102980666A (en) | High-precision miniaturized infrared optical system | |
| Johnston | Technical challenges for small UAV payloads | |
| Han et al. | Optical design of electro-optical UAV-based reconnaissance and surveillance system with shared aperture | |
| Mahmoud et al. | Optical design of common aperture and high resolution electro-optical/infrared system for aerial imaging applications | |
| CN109884776A (en) | Big visual field, low distortion EO-1 hyperion optical system based on Pixel-level optical filter | |
| CN219574483U (en) | Common aperture dual wave optical system | |
| Nicholas et al. | Infrared search and track performance estimates for detection of commercial unmanned aerial vehicles | |
| CN220040863U (en) | Long-wave infrared array scanning optical system | |
| Zhu | Optical design of space cameras for automated rendezvous and docking systems | |
| Petrushevsky | Atmospheric dispersion in oblique imaging from an airborne platform | |
| CA3046248C (en) | Millimeter wave imaging devices, and methods of operating millimeter wave imaging devices | |
| CN116609926A (en) | Image shift compensation optical system and aerial remote sensing system | |
| Cavanaugh et al. | Cell tower contrast in the visible, short-wave infrared, and long-wave infrared bands | |
| Ji et al. | Thermal effect on star sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
|
| RJ01 | Rejection of invention patent application after publication |