CN106092331A - A kind of two waveband dual field-of-view infrared optical system and formation method thereof - Google Patents
A kind of two waveband dual field-of-view infrared optical system and formation method thereof Download PDFInfo
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- CN106092331A CN106092331A CN201610477281.9A CN201610477281A CN106092331A CN 106092331 A CN106092331 A CN 106092331A CN 201610477281 A CN201610477281 A CN 201610477281A CN 106092331 A CN106092331 A CN 106092331A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 230000009977 dual effect Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 title claims description 8
- 230000000007 visual effect Effects 0.000 claims abstract description 42
- 238000003384 imaging method Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000005855 radiation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 1
- 238000003491 array Methods 0.000 abstract description 5
- 238000003331 infrared imaging Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009738 saturating 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
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0803—Arrangements for time-dependent attenuation of radiation signals
-
- 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
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/084—Adjustable or slidable
-
- 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
-
- 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
- G01J2005/0077—Imaging
Abstract
The invention discloses a kind of two waveband dual field-of-view infrared optical system, including the beam splitter from the horizontal by 45 ° of angles, beam splitter front is provided with the bimirror point mechanism for changing direction, visual field along optical axis direction, beam splitter rear is provided with rear group of imaging system along optical axis direction, beam splitter is provided above afocal system, described afocal system includes that big concave mirror, fully-reflected plane mirror, convex reflecting mirror and little concave mirror, described bimirror point mechanism include two parallel with beam splitter eyeglass；Also disclose this system and realize medium-wave infrared and the method for LONG WAVE INFRARED imaging simultaneously；The real-time of direction, visual field that present system front end uses scanning reflection mirror system then can realize wide visual field adjusts, rear end uses two-band infrared detector focal plane arrays (FPA) then can gather the image of two wave bands simultaneously and it be shown simultaneously, and user can be allowed to observe narrow view field image and wide visual field image in the case of not changing optical texture simultaneously.
Description
Technical field
The invention belongs to infrared optics technical field of imaging, be specifically related to a kind of two waveband dual field-of-view infrared optical system and
Its formation method.
Background technology
Medium-wave infrared image and LONG WAVE INFRARED image all have respective feature and advantage, under different situations, and different ripples
Section image has different advantages, medium-wave infrared imaging and LONG WAVE INFRARED imaging is combined and can concentrate respective advantage,
Obtain and be more widely applied.In this case, many visual fields can provide the user more advantage.Narrow view field image is permissible
The ability of distance identification is provided, and wide visual field image can provide search and the ability of location.The most just bring one to ask
Topic, distance identification and location recognition the two task need to carry out complete independently by change visual field.Reason is, will regard from ultra-narrow
The information obtained around target in field picture is extremely difficult, and wide visual field image is little to provide identification ability.Cause
This, user generally toggles between these visual fields and thereby may be ensured that systems stay has various identification ability.
The dual-waveband imaging character of dual-band infrared focal plane arrays (FPA) can make the means by optics utilize two waveband
Information is possibly realized, and this method has surmounted the method that common single band detector is used.Two waveband focal plane arrays (FPA) same
Step and separate character can make those tasks synchronization noted earlier complete without exist use single band camera just go out
Existing degradation phenomena.It is therefore desirable to for this two waveband focal plane arrays (FPA) design a kind of two waveband double-view field infrared optics system
System, utilizes this two waveband dual field-of-view infrared optical system can solve user between wide visual field and narrow visual field, long wave and short
The problem of constantly switching back and forth between ripple.
Summary of the invention
An object of the present invention is according to the deficiencies in the prior art, it is provided that a kind of two waveband double-view field infrared optics system
System, can realize medium-wave infrared and LONG WAVE INFRARED imaging simultaneously in conjunction with medium wave/long wave two-band infrared detector focal plane arrays (FPA)
Picture-in-picture imaging system, meanwhile, have employed scanning reflection mirror in LONG WAVE INFRARED optical system front end and can realize LONG WAVE INFRARED
The real-time adjustment in optical system field of view direction.
The technical solution adopted for the present invention to solve the technical problems is: a kind of two waveband dual field-of-view infrared optical system,
Including the beam splitter from the horizontal by 45 ° of angles, described beam splitter front is provided with for changing visual field along optical axis direction
The bimirror point mechanism in direction, described beam splitter rear is provided with rear group of imaging system, described beam splitter along optical axis direction
Being provided above afocal system, described afocal system includes big concave mirror, fully-reflected plane mirror, convex reflecting mirror and little
Concave mirror, described bimirror point mechanism includes two parallel with beam splitter eyeglass.
Described a kind of two waveband dual field-of-view infrared optical system, two eyeglasses of its bimirror point mechanism are arranged above and below.
Described a kind of two waveband dual field-of-view infrared optical system, its beam splitter is that the cated plane of surface configuration is saturating
Mirror.
The two of the purpose of the present invention are to provide a kind of two waveband dual field-of-view infrared optical system to realize medium-wave infrared and length
The method of imaging while that ripple being infrared.
The technical solution adopted for the present invention to solve the technical problems is: a kind of two waveband dual field-of-view infrared optical system
Formation method, comprises the following steps:
A), the infra-red radiation of infinite point be transferred to after afocal system on beam splitter, beam splitter reflection medium wave red line is also
Transmission long-wave infrared, MID INFRARED focuses on after inciding rear group of imaging system on the focal plane of two-band infrared detector
Carry out imaging；
B), the infra-red radiation of infinite point be transferred on beam splitter after bimirror point mechanism, reflection medium wave red line thoroughly
Penetrating long-wave infrared, long-wave infrared focuses on two-band infrared detector focal plane after inciding rear group of imaging system is enterprising
Row imaging；
C), bimirror point mechanism carries out aiming horizontally and vertically, change visual field by two eyeglasses in visual field
Direction also realizes observing greatly visual field.
Described a kind of two waveband dual field-of-view infrared optical system, when controlling medium-wave infrared independent alignment, medium-wave infrared pair
The when of the central point of a visual field, LONG WAVE INFRARED transfers to other target interested up；The narrow visual field of medium-wave infrared is moved
The when of its field of view center point dynamic, LONG WAVE INFRARED wide visual field maintains its field of view center constant.
The invention has the beneficial effects as follows:
1, the present invention uses picture-in-picture optical texture to realize double-view field imaging pattern, it is to avoid different visual fields toggle.
2, the present invention uses two waveband optical texture, can gather the medium-wave infrared image under narrow visual field and wide visual field simultaneously
Under LONG WAVE INFRARED image, and then the Reconnaissance, Long Range ability of LONG WAVE INFRARED and the low coverage of medium-wave infrared can be utilized to off normal simultaneously
Put identification ability.
3, this two waveband dual field-of-view infrared optical system compact conformation, reliability height, be advantageously implemented miniaturization two waveband
Double-view field thermal infrared imager.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the present invention；
Fig. 2 be the beam splitter of the present invention in LONG WAVE INFRARED and the reflectance of medium-wave infrared and transmitance.
Each reference is: 1 beam splitter, 2 afocal systems, 21 big concave mirrors, 22 fully-reflected plane mirrors,
23 convex reflecting mirrors, 24 little concave mirrors, 3 bimirror point mechanisms, organize imaging system after 4.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
With reference to shown in Fig. 1, as basic embodiment, the invention discloses a kind of two waveband double-view field infrared optics system
System, including the beam splitter 1 from the horizontal by 45 ° of angles, described beam splitter 1 front is provided with for changing along optical axis direction
Direction, visual field, the big bimirror point mechanism 3 observing visual field of realization, described beam splitter 1 rear is provided with rear group along optical axis direction
Imaging system 4, rear group imaging system 4 is used for receiving medium-wave infrared and LONG WAVE INFRARED focuses on infrared detector focal plane battle array
On row, described beam splitter 1 is provided above afocal system 2, and afocal system 2 is for being transferred to the medium-wave infrared of infinity point
On the reflecting surface of bundle device 1, described afocal system 2 includes big concave mirror 21, fully-reflected plane mirror 22, convex reflecting mirror 23
With little concave mirror 24, described bimirror point mechanism 3 includes two eyeglasses parallel with beam splitter 1, bimirror point mechanism 3
For changing direction, visual field, it is achieved observe greatly visual field, two eyeglasses can be implemented in and carry out horizontal direction and Vertical Square in visual field
To aiming, the boundary of observation field is that the overall dimensions of the size by mirror and displacement and window determine.
The present invention uses the beam splitter 1 that can medium-wave infrared and LONG WAVE INFRARED be separated and the optical window cause for gossip separated
The image of existing two different visual fields, medium-wave infrared wave band passes through afocal system 2 through beam splitter 1 by dual-waveband imaging instrument imaging,
LONG WAVE INFRARED is the imaging of dual-waveband imaging instrument after beam splitter 1, if rear end have employed two-band infrared detector focal plane array
Row then can gather the image of two wave bands simultaneously and it be shown simultaneously, and this can allow user not change optical texture
In the case of observe narrow view field image and wide visual field image simultaneously.Meanwhile, the optical system with wide field of view front end in present system
Use scanning reflection mirror system, then can realize the real-time adjustment in the direction, visual field of wide visual field.
Further, two eyeglasses of described bimirror point mechanism 3 are arranged above and below.
Further, described beam splitter 1 is the cated planar lens of surface configuration, and beam splitter 1 is by plane
Lens surface crosses special coating so that it can pass through LONG WAVE INFRARED and reflect medium-wave infrared, and beam splitter is at medium-wave infrared
With the transmitance parameter of LONG WAVE INFRARED as shown in Figure 2.So can be implemented in LONG WAVE INFRARED light path and do not have medium-wave infrared,
LONG WAVE INFRARED is then had the least repulsion degree by medium-wave infrared light path.
The formation method of a kind of two waveband dual field-of-view infrared optical system as claimed in claim 1, comprises the following steps:
A), the infra-red radiation of infinite point be transferred to after afocal system 2 on beam splitter 1, beam splitter 1 reflects medium wave red line
And transmission long-wave infrared, MID INFRARED focuses on Jiao of two-band infrared detector and puts down after inciding rear group of imaging system 4
Imaging is carried out on face.
B), the infra-red radiation of infinite point be transferred to after bimirror point mechanism 3 on beam splitter 1, reflection medium wave red
Line transmission long-wave infrared, long-wave infrared focuses on Jiao of two-band infrared detector after inciding rear group of imaging system 4
Imaging is carried out in plane.
C), bimirror point mechanism 3 in visual field, carry out aiming horizontally and vertically by two eyeglasses, change
Direction, visual field also realizes observing greatly visual field.
When controlling medium-wave infrared independent alignment, the when that medium-wave infrared facing toward the central point of a visual field, LONG WAVE INFRARED turns
Move on to other target interested up, the when that its field of view center point being moved in the narrow visual field of medium-wave infrared, LONG WAVE INFRARED wide visual field
Maintain its field of view center constant.
The principle of above-described embodiment only illustrative present invention and effect thereof, and the embodiment that part is used, for
For those of ordinary skill in the art, without departing from the concept of the premise of the invention, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.
Claims (6)
1. a two waveband dual field-of-view infrared optical system, it is characterised in that: include the beam splitter from the horizontal by 45 ° of angles
(1), described beam splitter (1) front is provided with the bimirror point mechanism (3) for changing direction, visual field along optical axis direction, described
Beam splitter (1) rear optical axis direction is provided with rear group of imaging system (4), described beam splitter (1) is provided above with or without Jiao
System (2), described afocal system (2) includes big concave mirror (21), fully-reflected plane mirror (22), convex reflecting mirror (23)
With little concave mirror (24), described bimirror point mechanism (3) includes two eyeglasses parallel with beam splitter (1).
A kind of two waveband dual field-of-view infrared optical system the most according to claim 1, it is characterised in that described bimirror turn-out track
Two eyeglasses of mechanism (3) are arranged above and below.
A kind of two waveband dual field-of-view infrared optical system the most according to claim 1, it is characterised in that described beam splitter
(1) it is the cated planar lens of surface configuration.
4. the formation method of a two waveband dual field-of-view infrared optical system as claimed in claim 1, it is characterised in that include
Following steps:
A), the infra-red radiation of infinite point is transferred on beam splitter (1), in beam splitter (1) reflection after afocal system (2)
Ripple red line transmission long-wave infrared, MID INFRARED focuses on dual-band infrared detection after inciding rear group of imaging system (4)
Imaging is carried out on the focal plane of device；
B), the infra-red radiation of infinite point be transferred to after bimirror point mechanism (3) on beam splitter (1), reflection medium wave red
Line transmission long-wave infrared, long-wave infrared focuses on two-band infrared detector after inciding rear group of imaging system (4)
Imaging is carried out on focal plane；
C), bimirror point mechanism (3) in visual field, carry out aiming horizontally and vertically by two eyeglasses, change regards
Field direction also realizes observing greatly visual field.
The formation method of a kind of two waveband dual field-of-view infrared optical system the most according to claim 4, it is characterised in that control
During medium-wave infrared independent alignment processed, the when that medium-wave infrared facing toward the central point of a visual field, LONG WAVE INFRARED transfers to other sense
The target of interest is up.
The formation method of a kind of two waveband dual field-of-view infrared optical system the most according to claim 4, it is characterised in that in
The when that its field of view center point being moved in the infrared narrow visual field of ripple, LONG WAVE INFRARED wide visual field maintains its field of view center constant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610477281.9A CN106092331A (en) | 2016-06-27 | 2016-06-27 | A kind of two waveband dual field-of-view infrared optical system and formation method thereof |
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| CN201610477281.9A CN106092331A (en) | 2016-06-27 | 2016-06-27 | A kind of two waveband dual field-of-view infrared optical system and formation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304434A (en) * | 2020-09-25 | 2021-02-02 | 西北工业大学 | Non-refrigeration type medium-long wave dual-waveband infrared imaging device and method |
| CN114353961A (en) * | 2021-12-01 | 2022-04-15 | 北京仿真中心 | Infrared broadband large dynamic complex imaging target and interference simulation device |
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| CN114353961A (en) * | 2021-12-01 | 2022-04-15 | 北京仿真中心 | Infrared broadband large dynamic complex imaging target and interference simulation device |
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Address after: 430223 No. 9 Ming Ze street, mien Shan development area, Jiangxia District, Wuhan, Hubei Applicant after: Jiuzhiyang Infrared System Co., Ltd. Address before: 430223 717 Sunshine Avenue, Jiangxia District, Wuhan, Hubei. Applicant before: Jiuzhiyang Infrared System Co., Ltd. |
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Application publication date: 20161109 |
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