CN109238471A - A kind of veiling glare removing method of uncooled ir system - Google Patents
A kind of veiling glare removing method of uncooled ir system Download PDFInfo
- Publication number
- CN109238471A CN109238471A CN201811469270.1A CN201811469270A CN109238471A CN 109238471 A CN109238471 A CN 109238471A CN 201811469270 A CN201811469270 A CN 201811469270A CN 109238471 A CN109238471 A CN 109238471A
- Authority
- CN
- China
- Prior art keywords
- temperature control
- control system
- lens
- rear surface
- tec temperature
- 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
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000004313 glare Effects 0.000 title claims abstract description 12
- 230000005855 radiation Effects 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0808—Convex mirrors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
- G01J5/14—Electrical features thereof
- G01J5/16—Arrangements with respect to the cold junction; Compensating influence of ambient temperature or other variables
Abstract
The present invention discloses a kind of veiling glare removing method of uncooled ir system, the system comprises: camera lens external structure (1), uncooled detector (3), TEC temperature control system (4), the photosensitive member of detector (5), lens construction rear surface (6), front lens group (9), rear lens group (8).The internal diameter of lens barrel structure rear surface (6) is greater than the catercorner length of TEC temperature control system (4).The infrared emanation that TEC temperature control system (4) issues when the system works largely passes through rear lens group (8) and front lens group (9) forward directed radiation goes out except system, small part heat radiation is then deferred to light reflection law and is reflected outside system through lens construction rear surface (6), therefore, the infrared emanation that TEC temperature control system (4) issues, which will be unable to reach on the photosensitive member of detector (5), forms speck, so as to obtain good output image.
Description
Technical field
The present invention relates to a kind of veiling glare technology for eliminating field of infrared imaging system, in particular to a kind of uncooled ir system
The veiling glare removing method of system.
Background technique
At present in uncooled ir system the source of veiling glare be mainly non-refrigerated infrared detector TEC temperature control system itself
The a large amount of heat radiations generated, the structure rear surface which reaches imaging optical system will form spurious reflections, this spuious
After reflection reaches in the photosensitive member of non-refrigerated infrared detector, serious interference speck can be formed on the image of output.At present should
The mode that interference speck mostly uses baffle to correct compensates, but cannot eliminate the light disturbance from the root.
Summary of the invention
It is an object of that present invention to provide a kind of veiling glare removing methods of uncooled ir system, using optical texture and non-system
The method of cold detector matched design blocks non-refrigerated infrared detector TEC temperature control system heat radiation to enter the photosensitive member of detector
Access, thus eliminate detector output image on interference speck.
In view of the above technical problems, the present invention proposes a kind of veiling glare removing method of uncooled ir system, the system
It include: camera lens external structure, uncooled detector, TEC temperature control system, the photosensitive member of detector, lens construction rear surface.Before further including
Lens group, rear lens group reflect through structure rear surface heat radiation outside system and forward direction passes through heat outside lens arrival system
Radiation.
Optical tubes structure rear surface internal diameter should be made to be greater than the catercorner length of TEC temperature control system.When work, because of optics
The rear surface internal diameter of structure is greater than the Diagonal Dimension of detector TEC temperature control system itself, so what TEC temperature control system issued
Infrared emanation largely passes through optical lens group forward directed radiation and goes out except system, and small part can reach table after optical texture
The heat radiation in face is then deferred to light reflection law and is reflected except system through body structure surface, and therefore, TEC temperature control system issues red
Outer heat radiation will be unable to reach in the photosensitive member of detector, therefore speck would not be also formed on the output image of detector.
The present invention is applied in uncooled ir system, to solve because of the hot spoke of non-refrigerated infrared detector TEC temperature control system
It penetrates and forms interference speck problem caused by spurious reflections in imaging optical system structure rear surface, one kind is provided and is effectively eliminated
Method.
The invention has the advantages that the hot veiling glare of TEC temperature control can directly be blocked to enter the access of photosensitive member, good figure is obtained
Picture.
Detailed description of the invention
Fig. 1 is a kind of veiling glare removing method schematic diagram of uncooled ir system of the invention.
1. camera lens external structure 2. reflects the 3. uncooled detector 4.TEC of heat radiation outside system through structure rear surface
To the heat radiation 8. passed through outside lens arrival system before the photosensitive 6. lens construction rear surface 7. of member of 5. detector of temperature control system
9. front lens group of rear lens group
Specific embodiment
The veiling glare removing method of uncooled ir system, uncooled ir system include: camera lens external structure 1, and non-brake method is visited
Survey device 3, TEC temperature control system 4, the photosensitive member 5 of detector, lens construction rear surface 6.Uncooled ir system further includes front lens group
9, rear lens group 8, reflect through structure rear surface heat radiation 2 outside system and forward direction passes through heat radiation outside lens arrival system
7。
In uncooled ir system, the internal diameter of lens barrel structure rear surface 6 is greater than the catercorner length of TEC temperature control system 4.
That is R > L, R are lens barrel structure rear surface (6) internal diameter, and L is the catercorner length of TEC temperature control system (4)；
When uncooled ir system works, because lens barrel structure rear surface 6 is greater than detector TEC temperature control system 4 itself
Diagonal Dimension, so TEC temperature control system 4 issue infrared emanation largely pass through rear lens group 8 and front lens group 9
Forward directed radiation, which goes out except system, forms the preceding heat radiation 7 to outside lens arrival system, and small part can reach lens barrel structure
The heat radiation of rear surface 6 then defers to light reflection law and forms the heat radiation 2 reflected outside system through structure rear surface, therefore,
The infrared emanation that TEC temperature control system 4 issues will be unable to reach in the photosensitive member 5 of detector, therefore on the output image of detector
Speck would not be formed.
The present invention is applied in uncooled ir system, to solve because of the hot spoke of non-refrigerated infrared detector TEC temperature control system
It penetrates and forms interference speck problem caused by spurious reflections in imaging optical system structure rear surface.
Claims (1)
1. a kind of veiling glare removing method of uncooled ir system, the system comprises: camera lens external structure (1), non-brake method detection
Device (3), TEC temperature control system (4), the photosensitive member of detector (5), lens construction rear surface (6), front lens group (9), rear lens group
(8)；
The internal diameter of lens barrel structure rear surface (6) is set to be greater than the catercorner length of TEC temperature control system (4).
When the system works, because lens barrel structure rear surface (6) is greater than the diagonal of detector TEC temperature control system (4) itself
Linear dimension, the infrared emanation that TEC temperature control system (4) issues largely pass through rear lens group (8) and front lens group (9) forward
It gives off to the heat radiation (7) passed through outside lens arrival system before being formed except system, after small part can reach lens barrel structure
The heat radiation on surface (6) then defers to light reflection law and forms the heat radiation (2) reflected outside system through lens construction rear surface,
Therefore, the infrared emanation that TEC temperature control system (4) issues will be unable to reach on the photosensitive member of detector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469270.1A CN109238471A (en) | 2018-11-28 | 2018-11-28 | A kind of veiling glare removing method of uncooled ir system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469270.1A CN109238471A (en) | 2018-11-28 | 2018-11-28 | A kind of veiling glare removing method of uncooled ir system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109238471A true CN109238471A (en) | 2019-01-18 |
Family
ID=65074486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811469270.1A Pending CN109238471A (en) | 2018-11-28 | 2018-11-28 | A kind of veiling glare removing method of uncooled ir system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109238471A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994701A (en) * | 1996-10-15 | 1999-11-30 | Nippon Avonics Co., Ltd. | Infrared sensor device with temperature correction function |
| US6144031A (en) * | 1997-04-21 | 2000-11-07 | Inframetrics Inc. | Infrared video camera system with uncooled focal plane array and radiation shield |
| CN2663956Y (en) * | 2003-12-24 | 2004-12-15 | 中国科学院上海技术物理研究所 | Thermoelectric refrigeration type infrared detector assembly |
| CN2731419Y (en) * | 2004-09-29 | 2005-10-05 | 山东天鹅棉业机械股份有限公司 | Portable dangeous heat source detector for fire disaster |
| CN101852650A (en) * | 2010-05-05 | 2010-10-06 | 中国计量学院 | Device and method for improving temperature measurement uniformity of thermal infrared imager |
-
2018
- 2018-11-28 CN CN201811469270.1A patent/CN109238471A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5994701A (en) * | 1996-10-15 | 1999-11-30 | Nippon Avonics Co., Ltd. | Infrared sensor device with temperature correction function |
| US6144031A (en) * | 1997-04-21 | 2000-11-07 | Inframetrics Inc. | Infrared video camera system with uncooled focal plane array and radiation shield |
| CN2663956Y (en) * | 2003-12-24 | 2004-12-15 | 中国科学院上海技术物理研究所 | Thermoelectric refrigeration type infrared detector assembly |
| CN2731419Y (en) * | 2004-09-29 | 2005-10-05 | 山东天鹅棉业机械股份有限公司 | Portable dangeous heat source detector for fire disaster |
| CN101852650A (en) * | 2010-05-05 | 2010-10-06 | 中国计量学院 | Device and method for improving temperature measurement uniformity of thermal infrared imager |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI732411B (en) | Laser designator pulse detectors, laser detection systems, and methods of identifying at least one target | |
| US9641825B2 (en) | Gated 3D camera | |
| CN105928627B (en) | A kind of heteropical method of elimination refrigeration mode thermal imaging system picture reproduction | |
| CN107836112B (en) | Optical projection system | |
| CN106254796A (en) | A kind of iraser laser spot detection imaging device based on iconoscope and method | |
| US20180045837A1 (en) | System and Method for Reducing Radiation-Induced False Counts in an Inspection System | |
| CN104111330B (en) | Up-conversion luminescence immunochromatographiassays assays instrument and detection method | |
| CN104635278A (en) | Detection device and detection method for target image of large non-uniform light field | |
| CN109238471A (en) | A kind of veiling glare removing method of uncooled ir system | |
| CA2568108A1 (en) | Standoff radiation imaging detector | |
| WO2017193891A1 (en) | Lens and shooting apparatus | |
| CN204613497U (en) | A kind of camera lens and capture apparatus | |
| CN103139477A (en) | Three-dimensional (3D) camera and method of stereo image obtaining | |
| CN104796631A (en) | Surface flattening imaging device and surface flattening imaging method | |
| CN107421720B (en) | A kind of optical testing device and method of underwater back scattering transmission function | |
| US11893756B2 (en) | Depth camera device | |
| CN204330129U (en) | The brightness detection instrument of built-in light source | |
| CN209311704U (en) | A kind of thermal imaging fusion night vision device | |
| CN206146532U (en) | Battle array pushes away and sweeps infrared thermal imaging system in excess supply based on special -shaped cold shield inclines | |
| CN102914803B (en) | A kind of formation method and device | |
| CN105953650B (en) | A kind of infrared exoelectron sight | |
| CN104198038B (en) | The brightness detection method of built-in light source | |
| CN205793027U (en) | A kind of vehicle night vision instrument using semiconductor laser floor light | |
| KR101257749B1 (en) | Infrared radiation thermometer observation system | |
| JP3379820B2 (en) | TV camera device for skin diagnosis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190118 |