CN109765685A - A kind of double-view field transmission-type multisensor single aperture optical systems - Google Patents
A kind of double-view field transmission-type multisensor single aperture optical systems Download PDFInfo
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Abstract
The present invention proposes that a kind of double-view field transmission-type multisensor single aperture optical systems, including wide spectrum share and transmit look in the distance component 1, FSM component 2, spectrum component 3, laser module 4, television relay component 5, CCD component 6, thermal imagery relay component 7, infrared detector module 8;Incident light shares the plane mirror 2-1 arrival spectrum component 3 for transmiting look in the distance component 1 and FSM component 2 through wide spectrum, is transmitted into small field of view thermal imagery relay component 7 through the first spectroscope 3-1, finally reaches infrared detector module 8;It is reflected into the second spectroscope 3-2;Reflected light reflects up to laser mirror 4-1 through the second spectroscope 3-2, finally reaches laser module 4;It is transmitted into television relay component 5, finally reaches CCD component 6.The level of integrated system is high, the coaxial Combined design of Search/Track double-view field, and can realize the line-of-sight stabilization of each sensor, while utilizing multispectral optical material dispersion matching optimization, solves single aperture optical in the Aberration Problem of infrared, TV, each spectral coverage of laser.
Description
Technical field
The invention belongs to optical technical field, it is related to a kind of multispectral multisensor and is total to aperture optical system, more particularly to
A kind of double-view field transmission-type multisensor single aperture optical systems containing large and small two visual fields.
Background technique
With optoelectronic device demand information, networking, the development of collaborative, electro-optical system is therewith towards multi-functional, Gao Xing
Energy, long sight distance, information fusion direction are developed, and O-E Payload palpus lightweight and miniaturization, to promote the integrated of electro-optical system
Degree.
The domestic common photoelectric sensor for surely taking aim at electro-optical system outfit has TV, infrared thermal imagery and laser, each sensor cloth
Office splits mode using separate modular, possesses respective optical system and window respectively, causes the volume and again of electro-optical system
It measures all bigger.Meanwhile each sensor of separate modular separated type integrated system has respective optical axis axis, causes to regard greatly
The optical axial of field target acquisition system and the optical axial of small field of view Target Tracking System also tend to inconsistent.Furthermore light is surely taken aim at
Electric system uses frame entirety stationary mode, and lasting accuracy nearly reaches capacity in mrad magnitude, can not further increase
Line-of-sight stabilization.
It is small-sized that the country has no that the multispectral aperture optical system altogether of the double-view field of integration television, laser and infrared sensor is realized
The relevant report of change, lightweight and high-accuracy stable, and the external phase for having Raytheon Co., the U.S. and Lockheed Martin Corporation
Close patent.Optical system described in Raytheon Co., U.S. patent US6174061 is integrated with infrared and laser photoelectricity sensor, head
Aperture optical camera lens matches Green's catoptric lens using wide spectrum card altogether, utilizes spectrum to realize after intermediate image plane respectively small
Visual field infrared thermal imaging and laser acquisition, and infrared large visual field thermal imaging is by squeezing into/getting a juxtaposition at spectroscope back
Reflecting mirror, which is realized, shares same detector with small field of view thermal imagery.But the invention is only integrated with laser and infrared photoelectric sensor, does not have
There is configuration TV sensor, integrated level is not high.Infrared large and small visual field although total detector in system, but optical aperture is respectively only
Vertical, optical axial is inconsistent.Multispectral multisensor described in american lockheed Martin Corporation patent US6359681 is total to hole
Diameter optical system is integrated with TV, infrared and laser photoelectricity sensor, and is realized using FSM infrared steady with the sight line of laser
It is fixed.The invention TV sensor optical channel does not pass through FSM, cannot be considered in terms of the line-of-sight stabilization of TV.
Summary of the invention
It is total to that aperture optical level of integrated system is high, Search/Track visual field optic axis for existing multispectral multisensor
The problem of line is inconsistent and IMS/FSM cannot be considered in terms of the line-of-sight stabilization of infrared, TV, laser, the present invention propose a kind of double
Visual field transmission-type multisensor single aperture optical systems, the level of integrated system is high, the coaxial Combined design of Search/Track double-view field,
And it can realize the line-of-sight stabilization of each sensor.Multispectral optical material dispersion matching optimization is utilized simultaneously, solves single aperture light
Learn the Aberration Problem in infrared, TV, each spectral coverage of laser.
The technical solution of the present invention is as follows:
A kind of double-view field transmission-type multisensor single aperture optical systems, it is characterised in that: shared including wide spectrum
Transmission look in the distance component 1, FSM component 2, spectrum component 3, laser module 4, television relay component 5, CCD component 6, in thermal imagery
After component 7, infrared detector module 8;
Wide spectrum shares transmission and looks in the distance component 1 by wide spectrum objective lens 1-1, the plane mirror 1-2 that turns back, wide spectrum eyepiece
Group 1-3 composition, in three 3.7 μm~4.8 μm medium-wave infrareds, 0.6 μm~0.8 μm visible light and 1.064 μm of laser spectrum segment pictures
Difference balance;
FSM component 2 is made of plane mirror 2-1 and driver 2-2;
Spectrum component 3 is made of the first color separation plate 3-1 and the second color separation plate 3-2;
Laser module 4 is made of laser common components 4-1, laser 4-2 and laser pick-off component 4-3;
Incident light shares the plane mirror 2-1 arrival spectrum for transmiting look in the distance component 1 and FSM component 2 through wide spectrum
Component 3 is transmitted into thermal imagery relay component 7 through the first spectroscope 3-1, finally reaches infrared detector module 8;Through the first light splitting
The light of mirror 3-1 reflection enters the second spectroscope 3-2;Light through the second spectroscope 3-2 reflection reaches laser module 4;Through second point
The light of light microscopic 3-2 transmission enters television relay component 5, finally reaches CCD component 6.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: wide spectrum objective lens 1-1 is by multispectral ZnS, monocrystalline CaF2With 3 lens compositions of monocrystalline sapphire, face type is spherical surface, mouth
DiameterThe plane mirror 1-2 that turns back is placed in after wide spectrum objective lens 1-1 at 84.2mm, is tilted with optical axis angle at 45 °
It places, material selection optical quartz glass, outer dimension is 125mm × 96mm × 10mm;Wide spectrum eyepiece group 1-3, which is placed in, to turn back
After plane mirror 1-2 at 80mm, by multispectral ZnS, monocrystalline BaF2It is formed with chemical vapor deposition ZnSe3 piece lens, face type
It is spherical surface, boreWide spectrum objective lens 1-1, the plane mirror 1-2 and wide spectrum eyepiece group 1-3 that turns back constitute nothing
The Galilean telescope of real focus, multiplying power Γ are 3.4.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: plane mirror 2-1 is placed at wide spectrum eyepiece group 1-3 rear end 42mm, with optical axis angle slant setting at 45 °, material choosing
With optical quartz glass, outer dimension is 56mm × 45mm × 6mm.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: driver 2-2 uses piezoelectric ceramic actuator part, and driving plane mirror 2-1, which is quickly deflected, realizes FSM two-stage stabilising, mends
It repays framework composition level-one and stablizes residual error.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: the first color separation plate 3-1 is placed at plane mirror 2-1 rear end 80mm, with optical axis slant setting at 45 °, material selection list
Brilliant sapphire, outer dimension are 62mm × 48mm × 5mm;The plane of incidence of first color separation plate 3-1 is coated with 3.7 μm~4.8 μ of transmission
The dichroic coating of m medium-wave infrared, 0.6 μm~0.8 μm visible light of reflection and 1.064 μm of laser;The exit facet of first color separation plate 3-1
It is coated with 3.7 μm~4.8 μm medium-wave infrared antireflective films;Second color separation plate 3-2 is arranged in the reflection direction of the first color separation plate 3-1
On, be placed in parallel with the first color separation plate 3-1, spacing 75mm, material selection HK9L optical glass, outer dimension be 62mm ×
44mm×6mm;The plane of incidence of second color separation plate 3-2 is coated with 0.6 μm~0.8 μm visible light of transmission, reflects 1.064 μm of laser
Dichroic coating;The exit facet of second color separation plate 3-2 is coated with 0.6 μm~0.8 μm visible light antireflective film.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: laser common components 4-1 is made of laser the relay component wave plate of 4-1-1, λ/4 4-1-2 and colour splitting prism 4-1-3;Laser connects
Component 4-3 is received to be assembled component 4-3-2 and laser pickoff 4-3-3 by narrow band filter 4-3-1, laser and formed;Laser relaying group
Part 4-1-1 is made of 4 HK9L lens, and face type is spherical surface, boreThe wave plate 4-1-2 material of λ/4 is optical glass,
BoreColour splitting prism 4-1-3 is formed by 2 pieces of HK9L right-angle prism gluings, and it is anti-that light splitting surface is coated with 1.064 μm of laser p light
It penetrates, the light transmissive dichroic coating of s, having a size of 40mm × 32mm × 6mm;Narrow band filter 4-3-1 material is HK9L, is coated with 1.064 μ
M narrow-band-filter film, boreLaser is assembled component 4-3-2 and is made of 2 HK9L lens, and face type is spherical surface, boreLaser 4-2 is YAG solid state laser, generates 1.064 μm of pulse laser;Laser pickoff 4-3-3 is snowslide
Diode.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: thermal imagery operating spectral range is 3.7 μm~4.8 μm, and big visual field is 3 ° × 2.3 °, and small field of view is 0.7 ° × 0.53 °, system F
Number is 5.5, image height 12mm, by squeezing into the switching got the group of the zoom in thermal imagery relay component and realize the large and small visual field of thermal imagery.
Further preferred embodiment, a kind of double-view field transmission-type multisensor single aperture optical systems, feature exist
In: television operations spectral region is 0.6 μm~0.8 μm, and big visual field is 3 ° × 2.3 °, and small field of view is 0.7 ° × 0.53 °, system F
Number is 6, image height 7.04mm, by squeezing into the switching got the group of the zoom in television relay component and realize the large and small visual field of TV.
Beneficial effect
The present invention provides a kind of double-view field multisensor transmission-type achromatism single aperture optical systems, utilize multispectral light
Material dispersion matching optimization is learned, solves single aperture optical in the Aberration Problem of infrared, TV, each spectral coverage of laser.
Detailed description of the invention
Fig. 1 is system composition schematic diagram of the invention.
Fig. 2 is thermal imagery light path schematic diagram, and zoom group 7-3-1,7-3-2, which is squeezed into get, in figure realizes large and small visual field thermal imagery
Visual field switching.
Fig. 3 is Laser emission and receiving light path schematic diagram.
Fig. 4 is TV light path schematic diagram.Zoom group 5-3-1,5-3-2, which is squeezed into get, in figure realizes large and small visual field TV
Visual field switching.
Specific embodiment
With reference to the accompanying drawing and preferred embodiment the present invention is described in detail:
The preferred embodiment of the present invention is for integrated double-view field infrared thermal imagery, double-view field TV and laser photoelectricity sensor
And the multispectral single aperture optical systems containing FSM, realize the densification and high integration of system.FSM is placed in total aperture optical path
In, the line-of-sight stabilization of achievable small field of view thermal imagery, TV and laser.
As shown in Figure 1, the optical system of the preferred embodiment of the present invention include include wide spectrum share transmission look in the distance component 1,
FSM component 2, spectrum component 3, laser module 4, television relay component 5, CCD component 6, thermal imagery relay component 7, infrared spy
Survey device assembly 8.
Wide spectrum shares transmission and looks in the distance component 1 by wide spectrum objective lens 1-1, the plane mirror 1-2 that turns back, wide spectrum eyepiece
Group 1-3 composition.The component of looking in the distance must be respectively in 3.7 μm~4.8 μm medium-wave infrareds, 0.6 μm~0.8 μm visible light and 1.064 μ
Three spectrum segment aberration balancings of m laser, especially chromatic aberration correction.According to multispectral optical material property list 1.
The multispectral optical material optical characteristics table of table 1
According to achromatism matching formula (1), CaF is determined2Or BaF2One of, with sapphire, MgF2Or ZnSe may make up medium wave
Infrared, visible light and the preferred combinations of pairs of the laser multispectral material of three color achromatisms.
ε1For primary color difference disperse radius, preferably close to 0;
It is definite value for optical system characteristics parameter;
1,3 be respectively TV and medium-wave infrared wave band;
A, B is respectively the 2 kinds of optical materials matched;
V is Ah's multiple of optical material.
Wide spectrum objective lens 1-1 is by multispectral ZnS (because meeting the increased material of engineering), monocrystalline CaF2With monocrystalline indigo plant
3 lens compositions of jewel, face type is spherical surface, boreThe plane mirror 1-2 that turns back is placed in wide spectrum objective lens 1-
After 1 at 84.2mm, in the direction Y-Z and optical axis angle slant setting at 45 °, material selection optical quartz glass, outer dimension is
125mm×96mm×10mm;Wide spectrum eyepiece group 1-3 is placed in turn back plane mirror 1-2 after at 80mm, by multispectral ZnS, list
Brilliant BaF2It is formed with chemical vapor deposition ZnSe3 piece lens, face type is spherical surface, boreWide spectrum objective lens 1-1,
The plane mirror 1-2 and wide spectrum eyepiece group 1-3 that turns back constitutes the Galilean telescope without real focus, and multiplying power Γ is 3.4.
FSM component 2 is made of plane mirror 2-1 and driver 2-2.Plane mirror 2-1 is placed in wide spectrum eyepiece group
At the 42mm of the rear end 1-3, in the direction Y-Z and optical axis angle slant setting at 45 °, material selection optical quartz glass, outer dimension
For 56mm × 45mm × 6mm.Driver 2-2 uses piezoelectric ceramic actuator part, and driving plane mirror 2-1 quickly deflects realization
FSM two-stage stabilising stablizes residual error to compensate framework composition level-one.
Spectrum component 3 is made of the first color separation plate 3-1 and the second color separation plate 3-2.First color separation plate 3-1 is set
At plane mirror 2-1 rear end 80mm, in the direction Y-Z and optical axis slant setting at 45 °, material selection monocrystalline sapphire, outside
Shape is having a size of 62mm × 48mm × 5mm.The plane of incidence of first color separation plate 3-1 be coated with transmission 3.7 μm~4.8 μm medium-wave infrareds,
Reflect the dichroic coating of 0.6 μm~0.8 μm visible light and 1.064 μm of laser;The exit facet of first color separation plate 3-1 is coated with 3.7 μm
~4.8 μm of medium-wave infrared antireflective films.Second color separation plate 3-2 is arranged in the reflection direction of the first color separation plate 3-1, and with first
Color separation plate 3-1 is placed in parallel, spacing 75mm, material selection HK9L optical glass, and outer dimension is 62mm × 44mm × 6mm.
The dichroic coating that the plane of incidence of second color separation plate 3-2 is coated with 0.6 μm~0.8 μm visible light of transmission, reflects 1.064 μm of laser;The
The exit facet of two color separation plate 3-2 is coated with 0.6 μm~0.8 μm visible light antireflective film.
Laser Measuring is made of according to component 4 laser common components 4-1, laser 4-2 and laser pick-off component 4-3.Laser is total
It is made of with component 4-1 laser the relay component wave plate of 4-1-1, λ/4 4-1-2 and colour splitting prism 4-1-3.Laser pick-off component 4-3
It is assembled component 4-3-2 and laser pickoff 4-3-3 by narrow band filter 4-3-1, laser and is formed.Laser relay component 4-1-1 is by 4
Piece HK9L lens composition, face type is spherical surface, boreThe wave plate 4-1-2 material of λ/4 is optical glass, boreColour splitting prism 4-1-3 is formed by 2 pieces of HK9L right-angle prism gluings, and light splitting surface is coated with 1.064 μm of reflections of laser p light, s
Light transmissive dichroic coating, having a size of 40mm × 32mm × 6mm;Narrow band filter 4-3-1 material HK9L, is coated with 1.064 μm of narrowbands
Filter coating, boreLaser is assembled component 4-3-2 and is made of 2 HK9L lens, and face type is spherical surface, boreLaser 4-2 is YAG solid state laser, generates 1.064 μm of pulse laser;Laser pickoff 4-3-3 is snowslide
Diode.
Incident light shares the plane mirror 2-1 arrival spectrum for transmiting look in the distance component 1 and FSM component 2 through wide spectrum
Component 3 is transmitted into thermal imagery relay component 7 through the first spectroscope 3-1, finally reaches infrared detector module 8;Through the first light splitting
Mirror 3-1 is reflected into the second spectroscope 3-2;It is reflected again through the second spectroscope 3-2 and reaches laser module 4;Through the second spectroscope 3-2
Enter television relay component 5 after transmission, finally reaches CCD component 6.
As shown in Fig. 2, thermal imagery operating spectral range is 3.7 μm~4.8 μm, big visual field is 3 ° × 2.3 °, and small field of view is
0.7 ° × 0.53 °, system F number is 5.5, image height 12mm, and zoom group 7-3-1,7-3-2, which is squeezed into get, realizes cutting for large and small visual field
It changes.The structural parameters table of its optical system each component is referring to table 1.
Table 1
As shown in figure 3, laser ranging operating spectral is 1.064 μm, system F number is 1.2, image height 0.06mm, optical system
The structural parameters table of system each component is referring to table 2.
Table 2
As shown in figure 4, television operations spectral region is 0.6 μm~0.8 μm, big visual field is 3 ° × 2.3 °, and small field of view is
0.7 ° × 0.53 °, system F number is 6, image height 7.04mm, and zoom group 5-3-1,5-3-2, which is squeezed into get, realizes cutting for large and small visual field
It changes.The structural parameters table of its optical system each component is referring to table 3.
Table 3
Claims (8)
1. a kind of double-view field transmission-type multisensor single aperture optical systems, it is characterised in that: share transmission including wide spectrum and hope
Remote component 1, FSM component 2, spectrum component 3, laser module 4, television relay component 5, CCD component 6, thermal imagery relay component
7, infrared detector module 8;
Wide spectrum shares transmission and looks in the distance component 1 by wide spectrum objective lens 1-1, the plane mirror 1-2 that turns back, wide spectrum eyepiece group 1-
3 compositions are flat in 3.7 μm~4.8 μm medium-wave infrareds, 0.6 μm~0.8 μm visible light and 1.064 μm of laser, three spectrum segment aberrations
Weighing apparatus;
FSM component 2 is made of plane mirror 2-1 and driver 2-2;
Spectrum component 3 is made of the first color separation plate 3-1 and the second color separation plate 3-2;
Laser module 4 is made of laser common components 4-1, laser 4-2 and laser pick-off component 4-3;
Incident light shares the plane mirror 2-1 arrival spectrum component for transmiting look in the distance component 1 and FSM component 2 through wide spectrum
3, it is transmitted into thermal imagery relay component 7 through the first spectroscope 3-1, finally reaches infrared detector module 8;Through the first spectroscope 3-
The light of 1 reflection enters the second spectroscope 3-2;Light through the second spectroscope 3-2 reflection reaches laser module 4;Through the second spectroscope
The light of 3-2 transmission enters television relay component 5, finally reaches CCD component 6.
2. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: wide light
Objective lens 1-1 is composed by multispectral ZnS, monocrystalline CaF2With 3 lens compositions of monocrystalline sapphire, face type is spherical surface, boreThe plane mirror 1-2 that turns back is placed in after wide spectrum objective lens 1-1 at 84.2mm, is put with optical axis angle inclination at 45 °
It sets, material selection optical quartz glass, outer dimension is 125mm × 96mm × 10mm;Wide spectrum eyepiece group 1-3 be placed in turn back it is flat
After the reflecting mirror 1-2 of face at 80mm, by multispectral ZnS, monocrystalline BaF2It is formed with chemical vapor deposition ZnSe3 piece lens, face type is equal
For spherical surface, boreWide spectrum objective lens 1-1, the plane mirror 1-2 and wide spectrum eyepiece group 1-3 that turns back are constituted without reality
The Galilean telescope of focus, multiplying power Γ are 3.4.
3. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: plane
Reflecting mirror 2-1 is placed at wide spectrum eyepiece group 1-3 rear end 42mm, with optical axis angle slant setting at 45 °, material selection optics stone
English glass, outer dimension are 56mm × 45mm × 6mm.
4. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: driving
Device 2-2 uses piezoelectric ceramic actuator part, and driving plane mirror 2-1, which is quickly deflected, realizes FSM two-stage stabilising, compensates frame set
Unify grade and stablizes residual error.
5. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: first
Color separation plate 3-1 is placed at plane mirror 2-1 rear end 80mm, and with optical axis slant setting at 45 °, material selection monocrystalline is blue precious
Stone, outer dimension are 62mm × 48mm × 5mm;The plane of incidence of first color separation plate 3-1 is coated with 3.7 μm~4.8 μm medium waves of transmission
The dichroic coating of infrared, 0.6 μm~0.8 μm visible light of reflection and 1.064 μm of laser;The exit facet of first color separation plate 3-1 is coated with
3.7 μm~4.8 μm medium-wave infrared antireflective films;Second color separation plate 3-2 is arranged on the reflection direction of the first color separation plate 3-1,
It is placed in parallel with the first color separation plate 3-1, spacing 75mm, material selection HK9L optical glass, outer dimension is 62mm × 44mm
×6mm;The color separation that the plane of incidence of second color separation plate 3-2 is coated with 0.6 μm~0.8 μm visible light of transmission, reflects 1.064 μm of laser
Film;The exit facet of second color separation plate 3-2 is coated with 0.6 μm~0.8 μm visible light antireflective film.
6. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: laser
Common components 4-1 is made of laser the relay component wave plate of 4-1-1, λ/4 4-1-2 and colour splitting prism 4-1-3;Laser pick-off component 4-
3 are assembled component 4-3-2 and laser pickoff 4-3-3 and are formed by narrow band filter 4-3-1, laser;Laser relay component 4-1-1 by
4 HK9L lens compositions, face type is spherical surface, boreThe wave plate 4-1-2 material of λ/4 is optical glass, boreColour splitting prism 4-1-3 is formed by 2 pieces of HK9L right-angle prism gluings, and light splitting surface is coated with 1.064 μm of reflections of laser p light, s
Light transmissive dichroic coating, having a size of 40mm × 32mm × 6mm;Narrow band filter 4-3-1 material is HK9L, is coated with 1.064 μm narrow
Band filter coating, boreLaser is assembled component 4-3-2 and is made of 2 HK9L lens, and face type is spherical surface, boreLaser 4-2 is YAG solid state laser, generates 1.064 μm of pulse laser;Laser pickoff 4-3-3 is snowslide
Diode.
7. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: thermal imagery
Operating spectral range is 3.7 μm~4.8 μm, and big visual field is 3 ° × 2.3 °, and small field of view is 0.7 ° × 0.53 °, and system F number is 5.5,
Image height 12mm, by squeezing into the switching got the group of the zoom in thermal imagery relay component and realize the large and small visual field of thermal imagery.
8. a kind of double-view field transmission-type multisensor single aperture optical systems according to claim 1, it is characterised in that: TV
Operating spectral range is 0.6 μm~0.8 μm, and big visual field is 3 ° × 2.3 °, and small field of view is 0.7 ° × 0.53 °, and system F number is 6, as
High 7.04mm, by squeezing into the switching got the group of the zoom in television relay component and realize the large and small visual field of TV.
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