CN109655157A - A kind of visible light-infared spectrum detection device and method - Google Patents
A kind of visible light-infared spectrum detection device and method Download PDFInfo
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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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
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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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0291—Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
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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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention discloses a kind of visible light-infared spectrum detection device and methods, it include: that the first lens receive incident full spectrum, visible reflectance in full spectrum, the visible light of reflection are reached visual light imaging focal plane, carry out visible light wave range imaging by the first spectroscope；Infrared transmission in full spectrum, the infrared light of transmission are incident on infrared imaging module by the first spectroscope；Diaphragm receives infrared light, and the second spectroscope reflects the medium-wave infrared light in the received infrared light of diaphragm according to preset ratio, and the medium-wave infrared light of reflection reaches medium-wave infrared imaging focal plane, carries out the imaging of medium-wave infrared wave band；Second spectroscope transmits the infrared broad spectrum in the received infrared light of diaphragm, the infrared broad spectrum of transmission reaches infrared broad spectrum into spectrum focal plane, infrared broad spectrum is carried out into spectrum, infrared broad spectrum includes the medium-wave infrared light and LONG WAVE INFRARED light of short-wave infrared light, transmission.Multi_band image analysis and infrared spectroscopy processing function may be implemented in the present invention.
Description
Technical field
The present invention relates to infrared remote sensing optical field, more particularly, to a kind of visible light-infared spectrum detection device and
Method.
Background technique
When the development of new aircraft of countries in the world, especially when doing flight test, there is an urgent need to aircraft
Working condition is monitored in real time.In addition, dividing after in aircraft flight, the failure or failure of aircraft occur in order to prevent
Analyse reason, it is also desirable to monitor in real time to the working condition of aircraft, for example, China's manned spaceship and carrier rocket are emitting
Pass the color visible image when multistep rocket separation when lift-off back simultaneously.But it makes a general survey of domestic and international open source literature and sends out not yet
The associated real-time monitoring equipment of visible light/infared spectrum of existing super dynamic distance range, this controls us flight comprehensively
The working condition of device is very unfavorable, because infrared image and spectrum can more deep reflection aircraft working conditions comprehensively.
This real-time watch device wants that the visible light of aircraft can be obtained from closely (m) to remote (km)
Image, medium-wave infrared image and infrared broad spectrum information.Therefore, the prior art lacks the visible light of super dynamic distance range/red
The outer associated real-time monitoring equipment of map.
Summary of the invention
It in view of the drawbacks of the prior art, can it is an object of the invention to solve that the prior art lacks super dynamic distance range
The technical issues of light-exposed/infared spectrum associated real-time monitoring equipment.
To achieve the above object, in a first aspect, the present invention provides a kind of visible light-infared spectrum detection device, comprising: can
Light-exposed image-forming module, medium-wave infrared image-forming module and infrared broad spectrum are at spectrum module；
The visual light imaging module includes: the first lens, the first spectroscope；
First lens receive incident full spectrum, and first spectroscope is anti-by the visible light in the full spectrum
It penetrates, the visible light of reflection reaches visual light imaging focal plane, carries out visible light wave range imaging；First spectroscope will be described complete
Infrared transmission in spectrum, the infrared light of transmission are incident on the infrared imaging module；
The medium-wave infrared image-forming module and the infrared broad spectrum include: diaphragm, the second spectroscope at spectrum module；
The diaphragm receives the infrared light, and second spectroscope is red by the medium wave in the received infrared light of the diaphragm
Outer light is reflected according to preset ratio, and the medium-wave infrared light of reflection reaches medium-wave infrared imaging focal plane, carries out medium-wave infrared wave band
Imaging；
Second spectroscope transmits the infrared broad spectrum in the received infrared light of the diaphragm, the infrared wide light of transmission
Spectrum reach infrared broad spectrum at spectrum focal plane, carry out infrared broad spectrum at spectrum, the infrared broad spectrum include short-wave infrared light, thoroughly
The medium-wave infrared light and LONG WAVE INFRARED light penetrated.
Optionally, the visual light imaging module further include: the second lens；
The infrared light of the first spectroscope transmission is again incident on the diaphragm after the second lens.
Optionally, the visual light imaging module further include: the first lens group and the second lens group；
The visible light of the first spectroscope reflection reaches visual light imaging coke by the first lens group and the second lens group
Plane, first lens group and the second lens group are visible light lens group.
Optionally, the medium-wave infrared image-forming module further include: the third lens group；
The medium-wave infrared light of the second spectroscope reflection reaches medium-wave infrared imaging focal plane, institute by the third lens group
Stating the third lens group is medium-wave infrared lens group.
Optionally, the infrared broad spectrum is at spectrum module further include: the 4th lens group and reflecting mirror；
The infrared broad spectrum of second spectroscope transmission reaches infrared broad spectrum into spectrum focal plane by the 4th lens group,
4th lens group is infrared broad spectrum lens group；
The reflecting mirror receives the infrared broad spectrum of second spectroscope transmission, and by the optical path of the infrared broad spectrum
The 4th lens group is again incident on after change.
Second aspect, the present invention provide a kind of visible light-infared spectrum detection method, include the following steps；
Receive incident full spectrum；
The visible light of visible reflectance in the full spectrum, reflection is reached into visual light imaging focal plane, is carried out visible
Optical band imaging, and by the infrared transmission in the full spectrum；
The infrared light transmitted from full spectrum is received, the medium-wave infrared light in the infrared light is reflected, the medium wave of reflection
Infrared light reaches medium-wave infrared imaging focal plane, carries out the imaging of medium-wave infrared wave band；And by the infrared wide light in the infrared light
Spectrum transmission, the infrared broad spectrum of transmission reach infrared broad spectrum into spectrum focal plane, carry out infrared broad spectrum into spectrum.
Optionally, it by after the infrared transmission in the full spectrum, receives before the infrared light transmitted in full spectrum,
Further include following steps:
The infrared light that will be transmitted from the full spectrum, focuses by collimated.
Optionally, the visible light of the reflection reaches visual light imaging focal plane after the focusing of visible light collimated.
Optionally, it is burnt that the medium-wave infrared light reflected reaches medium-wave infrared imaging after the focusing of medium-wave infrared collimated
Plane；
It is burnt at spectrum that the infrared broad spectrum of the transmission reaches infrared broad spectrum after the focusing of infrared broad spectrum collimated
Plane.
Optionally, by after the infrared broad spectrum transmission in the infrared light, the infrared broad spectrum of the transmission is by red
Further include following steps before outer wide spectrum collimated focuses:
Change the optical path of the infrared broad spectrum of transmission by reflecting mirror.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
The present invention will be seen that light and medium-wave infrared imaging combination can preferably improve the detection that aircraft includes aircraft and catch
Capacitation power, and then reach the wide spectrum measurement of aircraft；Three wave bands of the invention are total to the infrared wide light that aperture optical system is isolated
Spectrum had both included short-wave infrared, medium-wave infrared, further included long wave infrared region, can preferably reflect aircraft in infrared broad spectrum spy
Property, and then beneficial effect is provided to obtain the status information of aircraft.
Map detection device provided by the invention, receive full spectrum it is incident after, be divided into visible light, medium-wave infrared light and red
Outer full spectrum, these three different-waveband light are total to aperture incidence, and aperture optical system can be such that three field of view center are overlapped altogether, reduction system
System occupied space.
The map detection device provided through the invention can obtain visible images/medium-wave infrared figure of aircraft in real time
The wide spectrum infrared spectroscopy of picture and aircraft region of interest and image and spectrum after compressed encoding real-time Transmission postback penetrate it is winged
The carrier aircraft of row device or ground.
Detailed description of the invention
Fig. 1 a is the visual light imaging function structure chart that three wave band provided by the invention is total to aperture detection device；
Fig. 1 b is the medium-wave infrared imaging that three wave band provided by the invention is total to aperture detection device and infrared wide range into spectrum mould
Block structural diagram；
Fig. 2 a is the point range figure for the visual light imaging that detection device provided by the invention obtains；
Fig. 2 b is the MTF figure for the visual light imaging that detection device provided by the invention obtains；
Fig. 3 a is the point range figure for the medium-wave infrared imaging that detection device provided by the invention obtains；
Fig. 3 b is the MTF figure for the medium-wave infrared imaging that detection device provided by the invention obtains；
Fig. 4 a is the point range figure for the infrared broad spectrum that detection device provided by the invention obtains；
Fig. 4 b is the encircled energy figure for the infrared broad spectrum that detection device provided by the invention obtains.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
The present invention proposes a kind of real-time prison of visible light/medium-wave infrared imaging and wide spectrum collaboration of super dynamic distance range
Load is surveyed, can be assemblied on various carriers (such as on aircraft) to detect the various aircraft launched and emitted on the carrier.This hair
The visible light and medium-wave infrared energy for being to make full use of the spectroscope reflection in surveying spectrum/imaging optical path of improving eyesight, reach double wave
Section imaging, includes the status information of aircraft to obtain all kinds of targets, and then reaches the wide spectrum measurement of aircraft, solves simultaneously
The problem that light path layout is limited, volume weight is big.
Visible/infared spectrum detection load of super dynamic distance range provided by the invention includes that three wave bands are total to aperture optical
System: visual light imaging module, medium-wave infrared image-forming module and infrared broad spectrum are at spectrum module；The visual light imaging module
For by the visible light wave range λ in incident full spectral coverage energy1~λ2It is arrived after the reflection of spectroscope 1 through lens group 3 and lens group 4
Visual light imaging focal plane FPA1 imaging.Wherein, camera lens clear aperature is Φ1, focal length f1；Field angle is w1, transmitance is
τ1；Focusing mode uses interior focusing, and distance focusing is t1_1~t1_2, temperature focusing t1_1~t1_2；On areas imaging, work as target
Distance x1It is y when km1Rice target imaging.The image resolution ratio of imaging detector is M1*N1, each pixel size is s1, maximum
Frame frequency is p1；Operating temperature range is T1~T2。
The full spectral energy reflects medium-wave infrared after 1 transmitted infrared light of spectroscope, then through lens 2 and spectroscope 2, thoroughly
It is infrared to penetrate infrared broad spectrum.The medium-wave infrared of reflection reaches medium-wave infrared imaging focal plane through lens group 3.In technical indicator,
Medium wave imaging band is λ3~λ4, camera lens clear aperature is Φ2, focal length size is f2, field angle w2, outside k pixel, penetrate
Rate is τ2_1, interior k pixel is τ2_2, focusing mode is to adjust interior focusing, and distance focusing is d2_1~d2_2, temperature focusing is t2_1~
t2_2；On areas imaging, as target range x2It is y when km2Rice target imaging；The image resolution ratio of imaging detector is M2*
N2, pixel size s2；Operating temperature range is T3~T4。
The infrared broad spectrum of the transmission forms infrared broad spectrum after the reception of uncooled ir spectral detector.In technology
In index, infrared broad spectrum wavelength band is λ5~λ6；Camera lens clear aperature is Φ3；Focal length size is f3；Image space is equivalent
It is M when being imaged to medium wave3*N3Pixel；Transmitance is τ3；For at spectrum aiming area range, as target range x3When km, take aim at
Quasi- regional scope is y3Rice；Operating temperature range is T5~T6。
Target separates in optical system focusing analysis, in the distance range of the target acquisition of index request, it is seen that spectrum
System needs to focusMedium-wave infrared imaging needs to focusIt is that optical system interior focusing is realized.Wide spectrum is infrared at pedigree
System does not need distance focusing.
In the optical system Active Compensation analysis of operating temperature range, in T1~T2When temperature change, it is seen that photosystem
It needs actively to focusIf allowing the requirement of finite reduction image quality, can not focus.Medium-wave infrared imaging system needs
Actively focusWide spectrum is infrared not to need temperature focusing at spectra system yet.
In overall construction design, current three wave band be total to aperture optical system general layout design meet on the whole it is limited
Spatial dimension requirement.
Compared to single band infrared imaging capture movement target, existed using the beneficial effect that three wave bands are total to aperture optical system
In: first, visual light imaging high resolution, field angle is bigger, can more clearly see target, while being imaged using medium-wave infrared
To detect the infrared characteristic of target, it will be seen that light and medium-wave infrared imaging combine that preferably to improve all kinds of targets include aircraft
Detection capture ability, and then reach the spectral measurement of aircraft.Second, three wave bands be total to aperture optical system isolate it is infrared
Wide spectrum both includes short-wave infrared, medium-wave infrared, further includes long wave infrared region, can preferably reflect aircraft in infrared wide light
Spectral property, and then more fully information is provided for the working condition of aircraft；Third, aperture optical system can make two visual fields altogether
Center is overlapped, and reduces system bulk；Fourth, the electronic compartment efficient and stable using dexterous and rationally distributed, processing is to aircraft
Visible images/medium-wave infrared image and the wide spectrum infrared spectroscopy of aircraft region of interest Real Time Compression coding and pass
The carrier aircraft of defeated time launch craft or ground.
Fig. 1 is that three wave bands for including are total to aperture optical system for the present invention, wherein is specifically included: Fig. 1 a is the present invention
Three wave bands provided are total to the visual light imaging function structure chart of aperture detection device；Fig. 1 b is that three wave band provided by the invention is total to hole
The medium-wave infrared imaging of diameter detection device and infrared wide range are at spectrum function structure chart.Visual light imaging module is used for incident light point
The visible light wave range obtained after light is imaged, and medium-wave infrared image-forming module is used for the medium-wave infrared obtained after being divided incident light
Wave band is imaged, and infrared broad spectrum is carried out at the wide-band spectrum that spectrum module is used to obtain after being divided incident light into spectrum.
Optic path path description is as follows:
(1) incident light is incident in system through wide spectrum optical window, arrives spectroscope 1 by lens 1, spectroscope 1 reflects
Visible light wave range transmits infrared band；
(2) visible light that spectroscope 1 reflects reaches visual light imaging coke through visible light lens group 3 and visible light lens group 4
Plane；
(3) infrared light that spectroscope 1 transmits reflects medium-wave infrared wave band, transmission after lens group 2, diaphragm and spectroscope 2
Infrared broad spectrum；
(4) medium-wave infrared that spectroscope 2 reflects reaches medium-wave infrared imaging focal plane through medium-wave infrared lens group 5；
(5) infrared broad spectrum that spectroscope 2 transmits reaches infrared broad spectrum through reflecting mirror 3 and infrared broad spectrum lens group 6
Focal plane.
Three wave bands of the invention are total to aperture optical system, if mainly including spectroscope, dry lens peace face mirror etc..Currently,
Multiband infrared optical lens use Cassegrain system, are made of a parabolic mirror and a hyperboloidal mirror,
And by several lens group aberration corrections.System realizes that three wave band infrared imaging optical paths and the infrared survey spectrum optical path of wide spectrum are coaxial,
Two field of view center are overlapped.In order to reduce the influence caused by detection of camera lens own radiation, carry out without thermalized design.The optical system
The multiband optical system of subordination wide spectrum.
In technical indicator, it is seen that when light is imaged, camera lens clear aperature Φ1=10mm, focal length f1=32mm；Field angle
For w1=28 °, transmitance τ1=0.65；Focusing mode uses interior focusing, distance focusing d1_1=0, d1_2=-2.84mm, temperature
Focus t1_1=+0.06mm (- 40 DEG C), t1_2=-0.04mm (+60 DEG C)；On areas imaging, when target range is x1=4m~
Target imaging y when 2km1=2m；Target range x1Target imaging y when=2m~4m1=1m~2m；Target range x1=0.5m~
2m target imaging y1=260mm~1m.The image size that imaging detector generates is M1=2048, N1=2048, each pixel is big
Small s1=5.5 μm, maximum frame rate p1=56fps；It is 2m target at the distant place 2km for actual height, image height is 5.8 pixels, about
30μm.Operating temperature range is T1=40 DEG C, T2=+60 DEG C.
When medium-wave infrared is imaged, imaging band λ3=3.7 μm, λ4=4.8 μm, camera lens clear aperature Φ2=10mm is burnt
Away from size f2=40mm, field angle w2=17.5 °, outside k=10 pixel, transmitance τ2It is τ in=0.473, k=10 pixel2=
0.07, focusing mode is to adjust interior focusing, and distance focusing is d1_1=0, d1_2=+2.49mm, temperature focusing are t2_1=+0.37mm
(- 40 DEG C), t2_2=-0.21mm (+60 DEG C)；On areas imaging, as target range x2Target imaging y when=6.5m~1km2=
2m；As target range x2Target imaging y when=3.1m~6.5m2=1m~2m；As target range x2=0.5m~3.1m then when mesh
Mark imaging y2=1170mm~1m.The image resolution ratio of imaging detector is M2=640, N1=512, pixel s2=15 μm；Work as reality
Border height be 2m target at the distant place 1km, image height be 5.3 pixels, about 80 μm.Operating temperature range T3=-40 DEG C, T4=+60
℃。
For infrared broad spectrum at time spectrum, spectral band range is λ5=2 μm, λ6=12 μm；Camera lens clear aperature Φ3=15mm；
Focal length size f3=40mm；Equivalent arrive when medium wave is imaged of image space is M3=10, N3=10 pixels, about 150 150 μm of μ ms；Thoroughly
Crossing rate is τ2=0.233；For at spectrum aiming area range, as target range x3When=250m~1km, aiming area range y3
=1m~4m；As target range x3When=10m~250m, aiming area range y3=40mm~1m；As target range x3=0.5m
When~10m, aiming area range is then y3=2mm~40mm；Operating temperature range is T5=-40 DEG C, T6=+60 DEG C.
Target separates in optical system focusing analysis, in the distance range of the target acquisition of index request, it is seen that spectrum
System needs the 2.84mm that focuses, and medium-wave infrared imaging needs the 2.49mm that focuses, and is that optical system interior focusing is realized.Wide spectrum is infrared
Distance focusing is not needed at spectra system.
It, can in -40 DEG C~+60 DEG C of temperature changes in the optical system Active Compensation analysis of operating temperature range
Light-exposed system needs actively to focusIf allowing the requirement of finite reduction image quality, can not focus.In
Wave infrared imaging system needs actively to focusWide spectrum is infrared not to need temperature focusing at spectra system yet.
Specifically, the analysis for the evaluation and test optical system quality that the present invention uses includes: point diagram (spot diagram), point diagram
Principle be imaging of the display optical system on the face imaging surface IMA.Such as a point on axis, it is imaged onto from infinity
On the face IMA, optical design software zemax, which is just simulated, has several luminous points in infinity, these points are parallel to inject entrance pupil, then
By optical system, finally it is imaged on the face IMA.For actual optical system, a disc of confusion will be imaged as.So this
Picture of a disc of confusion on the face IMA is exactly Spot Diagram.The point on non-axis is also referred to angle and the position of chief ray
It sets, forms a series of luminous point, last also one disc of confusion of formation is finally imaged on the face IMA by entrance pupil.If for
Disc of confusion it is smaller, then the performance of optical system is better.
The image quality of three wave bands is shown in Fig. 2~Fig. 4 respectively.Wherein visible light and medium-wave infrared imaging with point range figure and
MTF indicates that infrared broad spectrum is indicated at spectrum with point range figure and encircled energy.It can be seen that the imaging of three wave bands on the whole
Quality is all fine.
Specifically, Fig. 2 is into Fig. 4, OBJ feeling the pulse with the finger-tip mark, and the horizontal axis of MTF is spatial frequency in cycles
Per millimeter, spatial be identify ruler (bar target) light and shade striped in its compartment width meaning, usually with
Millimeter is unit, and frequency in cycles, that is, every millimeter has several groups of light and shade stripeds, so can identify
Minimum scale reacts the frequency of the light wave.Abscissa is directly translated as every millimeter of round spatial frequency.
In overall construction design, current three wave band is total to aperture optical system general layout design about 95% and meets missile-borne item
The spatial dimension requirement provided under part.When pitching ± 10 ° and orientation ± 8 ° rotate, spectrometer and detector circuit plate each one
There are about the interference of 5mm for angle and cone cylinder barrel.The optical axis center of optical system deviates window center pitching 35mm, orientation 10mm,
The outer visual field visual light imaging in pitching and orientation extreme rotational position of axis is caused to have part vignetting (losing certain illuminance).
For first problem, there are three corrective measures: 1) optical system light path layout further refinement and improvement, into one
Walk compact volume；2) medium wave imaging detector circuit board position is adjusted, interference region is avoided；3) spectrometer can be done at miniaturization
Reason.
For Second Problem, there are three recommendation on improvements: 1) after complete machine miniaturization, providing space approach window center position
It sets, eliminates the outer visual field gradual halation phenomena of axis；2) appropriate adjustment window center position, as far as possible approach system optical axis position；3)
Window size needed for optical system is smaller at present, can greatly reduce actual window size.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of visible light-infared spectrum detection device characterized by comprising visual light imaging module, medium-wave infrared imaging
Module and infrared broad spectrum are at spectrum module；
The visual light imaging module includes: the first lens, the first spectroscope；
First lens receive incident full spectrum, and first spectroscope is by the visible reflectance in the full spectrum, instead
The visible light penetrated reaches visual light imaging focal plane, carries out visible light wave range imaging；First spectroscope is by the full spectrum
In infrared transmission, the infrared light of transmission is incident on the infrared imaging module；
The medium-wave infrared image-forming module and the infrared broad spectrum include: diaphragm, the second spectroscope at spectrum module；
The diaphragm receives the infrared light, and second spectroscope is by the medium-wave infrared light in the received infrared light of the diaphragm
It is reflected according to preset ratio, the medium-wave infrared light of reflection reaches medium-wave infrared imaging focal plane, carries out the imaging of medium-wave infrared wave band；
Second spectroscope transmits the infrared broad spectrum in the received infrared light of the diaphragm, and the infrared broad spectrum of transmission arrives
Up to infrared broad spectrum at spectrum focal plane, infrared broad spectrum is carried out into spectrum, the infrared broad spectrum includes short-wave infrared light, transmission
Medium-wave infrared light and LONG WAVE INFRARED light.
2. visible light according to claim 1-infared spectrum detection device, which is characterized in that the visual light imaging mould
Block further include: the second lens；
The infrared light of the first spectroscope transmission is again incident on the diaphragm after the second lens.
3. visible light according to claim 1-infared spectrum detection device, which is characterized in that the visual light imaging mould
Block further include: the first lens group and the second lens group；
The visible light of the first spectroscope reflection reaches visual light imaging focal plane by the first lens group and the second lens group,
First lens group and the second lens group are visible light lens group.
4. visible light according to claim 1-infared spectrum detection device, which is characterized in that the medium-wave infrared imaging
Module further include: the third lens group；
The medium-wave infrared light of second spectroscope reflection reaches medium-wave infrared imaging focal plane by the third lens group, and described the
Three lens groups are medium-wave infrared lens group.
5. visible light according to claim 4-infared spectrum detection device, which is characterized in that the infrared broad spectrum at
Compose module further include: the 4th lens group and reflecting mirror；
The infrared broad spectrum of second spectroscope transmission reaches infrared broad spectrum into spectrum focal plane by the 4th lens group, described
4th lens group is infrared broad spectrum lens group；
The reflecting mirror receives the infrared broad spectrum of the second spectroscope transmission, and the optical path of the infrared broad spectrum is changed
After be again incident on the 4th lens group.
6. a kind of visible light-infared spectrum detection method, which is characterized in that include the following steps；
Receive incident full spectrum；
The visible light of visible reflectance in the full spectrum, reflection is reached into visual light imaging focal plane, carries out visible light wave
Section imaging, and by the infrared transmission in the full spectrum；
The infrared light transmitted from full spectrum is received, the medium-wave infrared light in the infrared light is reflected, the medium-wave infrared of reflection
Light reaches medium-wave infrared imaging focal plane, carries out the imaging of medium-wave infrared wave band；And it is the infrared broad spectrum in the infrared light is saturating
It penetrates, the infrared broad spectrum of transmission reaches infrared broad spectrum into spectrum focal plane, carries out infrared broad spectrum into spectrum.
7. visible light according to claim 6-infared spectrum detection method, which is characterized in that will be in the full spectrum
After infrared transmission, receives before the infrared light transmitted in full spectrum, further includes following steps:
The infrared light that will be transmitted from the full spectrum, focuses by collimated.
8. visible light according to claim 6-infared spectrum detection method, which is characterized in that the visible light of the reflection
Visual light imaging focal plane is reached after the focusing of visible light collimated.
9. visible light according to claim 6-infared spectrum detection method, which is characterized in that the medium-wave infrared reflected
Light reaches medium-wave infrared imaging focal plane after the focusing of medium-wave infrared collimated；
The infrared broad spectrum of the transmission reaches infrared broad spectrum into spectrum focal plane after the focusing of infrared broad spectrum collimated.
10. visible light according to claim 9-infared spectrum detection method, which is characterized in that will be in the infrared light
After infrared broad spectrum transmission, before the infrared broad spectrum of the transmission is focused by infrared broad spectrum collimated, further include
Following steps:
Change the optical path of the infrared broad spectrum of transmission by reflecting mirror.
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