CN109211413A - A kind of infrared visible light is total to aperture imaging optical system - Google Patents
A kind of infrared visible light is total to aperture imaging optical system Download PDFInfo
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- CN109211413A CN109211413A CN201710545935.1A CN201710545935A CN109211413A CN 109211413 A CN109211413 A CN 109211413A CN 201710545935 A CN201710545935 A CN 201710545935A CN 109211413 A CN109211413 A CN 109211413A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 105
- 238000003384 imaging method Methods 0.000 title claims abstract description 54
- 238000010992 reflux Methods 0.000 claims abstract description 26
- 230000000007 visual effect Effects 0.000 claims abstract description 21
- 238000003331 infrared imaging Methods 0.000 claims abstract description 20
- 210000001747 pupil Anatomy 0.000 claims abstract description 8
- 230000004075 alteration Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000011896 sensitive detection Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- 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
-
- 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
- G01J5/0806—Focusing or collimating elements, e.g. lenses or concave mirrors
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Abstract
The invention discloses a kind of infrared visible lights to be total to aperture imaging optical system, include: optical dome (1), principal reflection mirror (2), secondary mirror (3), Infrared Lens group (4) and infrared detector image planes (5), further includes: cemented doublet (6), refluxing reflection mirror A(7), refluxing reflection mirror B(8), visible light lens group (9) and visible-light detector image planes (10).Infrared visible light is total in aperture imaging optical system, and infrared imaging optical system and visual light imaging optical system work respectively, is imaged in respective detector image planes；When infrared imaging optical system works, diaphragm is located on principal reflection mirror (2), and principal reflection mirror (2) bore is the entrance pupil size of infrared system；When visual light imaging optical system works, diaphragm is located on cemented doublet (6), and cemented doublet (6) bore is the entrance pupil size of VISIBLE LIGHT SYSTEM.The present invention avoids introducing Amici prism, realizes small size, lightweight, low cost.
Description
Technical field
The present invention relates to a kind of aperture imaging optical system, especially a kind of infrared visible lights altogether to be total to aperture imaging optical system
System.
Background technique
Infrared imaging is the infrared signal for obtaining target itself radiation, and passive working method has preferable concealment.Together
When have stronger smog penetration capacity, have the function of quasi- all weather operations, but image quality is poor.The light of visible images
Spectrum information is abundant, high resolution, good imaging quality, but under conditions of night and low visibility, image quality is limited.Ground appearance
Target background is more complicated, it is seen that light imaging obtains the higher target image of resolution ratio.But cigarette, mist, illumination are to visual light imaging
It is affected, and insensitive to the temperature difference of target and background.Infrared image makes up the deficiency of visual light imaging.Therefore, sharp
With infrared visible light complex optics can be realized target be accurately positioned, round-the-clock detection, to high-temperature targets sensitive detection, right
Weather conditions have certain adaptability.
Aperture optical system altogether, is made of, two optical systems infrared imaging optical system and visual light imaging optical system
Altogether use optical dome.Wherein infrared imaging optical system and visual light imaging optical system work respectively, are imaged on respective
In detector image planes.Currently used is that visible light and infrared system share head-shield and Cassegrain reflecting mirror, by being coated with point
The plate of color film realizes the beam splitting of visible light and infrared light, infrared transmission, it is seen that hereafter respective optics is passed through in light reflection
The imaging of system completion visible light and infrared light.But such mode is divided using parallel flat, can introduce the inclination that can not be corrected
Aberration, and resetting difficulty increases, higher cost.Current infrared visible light complex imaging optical system, structure is complicated, cost compared with
It is high.
Summary of the invention
Be total to aperture imaging optical system it is an object of that present invention to provide a kind of infrared visible light, solve infrared optical system and
The problem that volume is big in the case that visible light optical system is compound, weight is big, at high cost.
A kind of infrared visible light is total to aperture imaging optical system, comprising: optical dome, principal reflection mirror, secondary mirror, infrared
Lens group and infrared detector image planes；Further include: cemented doublet, refluxing reflection mirror A, refluxing reflection mirror B, visible light lens group
With visible-light detector image planes.
The optical dome, principal reflection mirror, secondary mirror, Infrared Lens group, infrared detector image planes form infrared imaging
Optical system；The optical dome, cemented doublet, refluxing reflection mirror A, refluxing reflection mirror B, visible light lens group, visible light
Detector image planes form visual light imaging optical system；Infrared imaging optical system and visual light imaging optical system are by sharing
Optical dome constitutes infrared visible light and is total to aperture imaging optical system.
Infrared imaging optical system is according to optical dome, secondary mirror, principal reflection mirror, Infrared Lens group, infrared detector
The order of image planes is arranged successively from front to back；Wherein, paraboloid principal reflection mirror and secondary mirror form the light of Cassegrain form
System；Visual light imaging optical system according to optical dome, cemented doublet, refluxing reflection mirror A, refluxing reflection mirror B, can
Light-exposed lens group, visible-light detector image planes order be arranged successively from front to back.
Infrared visible light is total in aperture imaging optical system, infrared imaging optical system and visual light imaging optical system point
It does not work, is imaged in respective detector image planes；When infrared imaging optical system works, infrared collimated light beam is through optical dome
Refraction, reflects through principal reflection mirror, secondary mirror reflection, in Infrared Lens group dioptric imaging to infrared detector image planes；Diaphragm position
In on principal reflection mirror, principal reflection mirror bore is the entrance pupil size of infrared system；When visual light imaging optical system works, it is seen that light
Collimated light beam is reflected through optical dome and cemented doublet, is realized that optical path is turned back through refluxing reflection mirror A and refluxing reflection mirror B, is passed through
In visible light lens group dioptric imaging to visible-light detector image planes；Diaphragm is located on cemented doublet, cemented doublet bore
For the entrance pupil size of VISIBLE LIGHT SYSTEM.
The present invention shares optical dome by infrared optical system and visible light optical system, realizes infrared visible light
Aperture imaging altogether；Infrared detector uses uncooled detector, passes through refluxing reflection mirror A and reflection of turning back in complex imaging optical path
Mirror B realizes that optical path is turned back, and avoids introducing Amici prism, realizes small size, lightweight, the design of low cost.
Detailed description of the invention
A kind of infrared visible light of Fig. 1 is total to aperture imaging schematic diagram of optical system；
1. optical dome 2. principal reflection mirror, 3. secondary mirror, 4. Infrared Lens group, 5. infrared detector image planes, 6. pairs of gluings are saturating
9. visible light lens group of mirror 7. refluxing reflection mirror A, 8. refluxing reflection mirror B, 10. visible-light detector image planes.
Specific embodiment
A kind of infrared visible light is total to aperture imaging optical system, comprising: optical dome 1, principal reflection mirror 2, secondary mirror 3,
Infrared Lens group 4 and infrared detector image planes 5；Further include: cemented doublet 6, refluxing reflection mirror A7, refluxing reflection mirror B8, can
Light-exposed lens group 9 and visible-light detector image planes 10.
The optical dome 1, principal reflection mirror 2, secondary mirror 3, Infrared Lens group 4, infrared detector image planes 5 form infrared
Imaging optical system；The optical dome 1, cemented doublet 6, refluxing reflection mirror A7, refluxing reflection mirror B8, visible light lens group
9, visible-light detector image planes 10 form visual light imaging optical system；Infrared imaging optical system and visual light imaging optical system
System constitutes infrared visible light and is total to aperture imaging optical system by sharing optical dome 1.Infrared Lens group 4 is by positive lens, negative
Lens, positive lens groups at, be arranged successively from front to back according to the sequence of optical path, compensate principal reflection mirror 2 and secondary mirror 3 remnants
Aberration meets the requirement of infrared optical system correcting chromatic aberration and heat differential.Visible light lens group 9 by positive lens, double glued positive lens,
Negative lens group at, be arranged successively from front to back according to the sequence of optical path, with cemented doublet 6 cooperate, meet visible light optical system
System imaging, the requirement of correcting chromatic aberration and heat differential.
Infrared imaging optical system is according to optical dome 1, secondary mirror 3, principal reflection mirror 2, Infrared Lens group 4, infrared spy
The order for surveying device image planes 5 is arranged successively from front to back；Wherein, paraboloid principal reflection mirror 2 and secondary mirror 3 form Cassegrain shape
The optical system of formula；Visual light imaging optical system according to optical dome 1, cemented doublet 6, refluxing reflection mirror A7, turn back it is anti-
Penetrate mirror B8, visible light lens group 9, visible-light detector image planes 10 order be arranged successively from front to back.
Infrared visible light is total in aperture imaging optical system, infrared imaging optical system and visual light imaging optical system point
It does not work, is imaged in respective detector image planes；When infrared imaging optical system works, infrared collimated light beam is through optical dome
1 refraction, reflects through principal reflection mirror 2, and secondary mirror 3 reflects, in 4 dioptric imaging to infrared detector image planes 5 of Infrared Lens group；Light
Door screen is located on principal reflection mirror 2, and 2 bore of principal reflection mirror is the entrance pupil size of infrared system；When visual light imaging optical system works,
Visible light collimated light beam is reflected through optical dome 1 and cemented doublet 6, realizes light through refluxing reflection mirror A7 and refluxing reflection mirror B8
Road is turned back, through in 9 dioptric imaging to visible-light detector image planes 10 of visible light lens group；Diaphragm is located on cemented doublet 6, double
6 bore of balsaming lens is the entrance pupil size of VISIBLE LIGHT SYSTEM.
Claims (3)
1. a kind of infrared visible light is total to aperture imaging optical system, comprising: optical dome (1), principal reflection mirror (2), secondary mirror
(3), Infrared Lens group (4) and infrared detector image planes (5)；Characterized by further comprising: cemented doublet (6), reflection of turning back
Mirror A(7), refluxing reflection mirror B(8), visible light lens group (9) and visible-light detector image planes (10)；
The optical dome (1), principal reflection mirror (2), secondary mirror (3), Infrared Lens group (4), infrared detector image planes (5) group
At infrared imaging optical system；The optical dome (1), cemented doublet (6), refluxing reflection mirror A(7), refluxing reflection mirror B
(8), visible light lens group (9), visible-light detector image planes (10) form visual light imaging optical system；Infrared imaging optical system
System and visual light imaging optical system constitute infrared visible light and are total to aperture imaging optical system by sharing optical dome (1)；
Infrared imaging optical system is according to optical dome (1), secondary mirror (3), principal reflection mirror (2), Infrared Lens group (4), red
The order of external detector image planes (5) is arranged successively from front to back；Wherein, paraboloid principal reflection mirror (2) and secondary mirror (3) are formed
The optical system of Cassegrain form；Visual light imaging optical system according to optical dome (1), cemented doublet (6), turn back
Reflecting mirror A(7), refluxing reflection mirror B(8), visible light lens group (9), visible-light detector image planes (10) order from front to back
It is arranged successively；
Infrared visible light is total in aperture imaging optical system, and infrared imaging optical system and visual light imaging optical system distinguish work
Make, is imaged in respective detector image planes；When infrared imaging optical system works, infrared collimated light beam is through optical dome (1)
Refraction is reflected through principal reflection mirror (2), secondary mirror (3) reflection, Infrared Lens group (4) dioptric imaging to infrared detector image planes
(5) on；Diaphragm is located on principal reflection mirror (2), and principal reflection mirror (2) bore is the entrance pupil size of infrared system；Visual light imaging light
When system works, it is seen that light collimated light beam is reflected through optical dome (1) and cemented doublet (6), through refluxing reflection mirror A(7)
Realize that optical path is turned back with refluxing reflection mirror B(8), through visible light lens group (9) dioptric imaging to visible-light detector image planes (10)
On；Diaphragm is located on cemented doublet (6), and cemented doublet (6) bore is the entrance pupil size of VISIBLE LIGHT SYSTEM.
2. infrared visible light according to claim 1 is total to aperture imaging optical system, it is characterised in that: described is infrared
Microscope group (4) by positive lens, negative lens, positive lens groups at, be arranged successively from front to back according to the sequence of optical path, compensate principal reflection mirror
(2) and the residual aberration of secondary mirror (3), meet the requirement of infrared optical system correcting chromatic aberration and heat differential.
3. infrared visible light according to claim 1 is total to aperture imaging optical system, it is characterised in that: the visible light
Lens group (9) by positive lens, double glued positive lens, negative lens group at, be arranged successively from front to back according to the sequence of optical path, and it is double
Balsaming lens (6) cooperation, meets the requirement of visible light optical system imaging, correcting chromatic aberration and heat differential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545935.1A CN109211413B (en) | 2017-07-06 | 2017-07-06 | Infrared and visible light common-aperture imaging optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545935.1A CN109211413B (en) | 2017-07-06 | 2017-07-06 | Infrared and visible light common-aperture imaging optical system |
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| Publication Number | Publication Date |
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| CN109211413A true CN109211413A (en) | 2019-01-15 |
| CN109211413B CN109211413B (en) | 2021-06-15 |
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| CN201710545935.1A Active CN109211413B (en) | 2017-07-06 | 2017-07-06 | Infrared and visible light common-aperture imaging optical system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947515A (en) * | 2020-08-27 | 2020-11-17 | 湖南华南光电(集团)有限责任公司 | Fusion type common-aperture day and night universal sighting telescope |
| CN113687500A (en) * | 2021-08-03 | 2021-11-23 | 润坤(上海)光学科技有限公司 | Refractive detector optical system |
| CN114353830A (en) * | 2021-12-27 | 2022-04-15 | 北京遥感设备研究所 | Light path switching device and switching method for fixed star calibration |
| FR3142264A1 (en) * | 2022-11-22 | 2024-05-24 | Safran Electronics & Defense | Bi-spectral imaging device with two detection zones |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111947515A (en) * | 2020-08-27 | 2020-11-17 | 湖南华南光电(集团)有限责任公司 | Fusion type common-aperture day and night universal sighting telescope |
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| CN114353830A (en) * | 2021-12-27 | 2022-04-15 | 北京遥感设备研究所 | Light path switching device and switching method for fixed star calibration |
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| WO2024110716A1 (en) * | 2022-11-22 | 2024-05-30 | Safran Electronics & Defense | Bi-spectral imaging device with two detection zones |
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| CN109211413B (en) | 2021-06-15 |
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