CN105890756A - Rotary filter-based monochromator - Google Patents
Rotary filter-based monochromator Download PDFInfo
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- CN105890756A CN105890756A CN201610356985.0A CN201610356985A CN105890756A CN 105890756 A CN105890756 A CN 105890756A CN 201610356985 A CN201610356985 A CN 201610356985A CN 105890756 A CN105890756 A CN 105890756A
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- 230000003595 spectral effect Effects 0.000 abstract description 27
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
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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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
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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
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/26—Generating the spectrum; Monochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
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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
- G01J3/12—Generating the spectrum; Monochromators
- G01J2003/1213—Filters in general, e.g. dichroic, band
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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
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/26—Generating the spectrum; Monochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
- G01J2003/262—Double pass; Multiple pass
Abstract
The invention discloses a rotary filter-based monochromator. The rotary filter-based monochromator includes a first beam splitter, a second beam splitter, a third beam splitter, a first rotary filter, a second rotary filter, a third rotary filter, a fourth rotary filter, a first polarization beam splitting prism, a second polarization beam splitting prism, a third polarization beam splitting prism and a fourth polarization beam splitting prism; the first beam splitter, the second beam splitter and the third beam splitter are all planar mirrors; the first beam splitter is arranged in a parallel optical path; the second beam splitter is arranged in the optical path of transmitted light of the first beam splitter; and the third beam splitter is located in the optical path of reflected light of the first beam splitter. According to the rotary filter-based monochromator of the invention, the rotary filters are adopted to achieve spectral scanning, so that the rotary filter-based monochromator has high spectral resolution and high luminous flux. The visible light-to-infrared light wide-spectral band application of the rotary filter-based monochromato can be realized. The application of the rotary filter-based monochromator is flexible. The manufacturing cost of the rotary filters is low. The replacement of optical lenses is convenient. Later-stage maintenance cost is low.
Description
Technical field
The present invention relates to technical field of optical instrument, a kind of monochromator based on rotating filtering sheet.
Background technology
Monochromator is commonly used a kind of light-splitting device in optical instrument, has light splitting function, one section of continuous print spectrum is divided into multiple independent passage, it is achieved spectral scan.
At present, the light-splitting method of monochromator mainly has prismatic decomposition, grating beam splitting, Fourier transformation light splitting three kinds.
Prismatic decomposition is to utilize prism material itself to have this principle of different refracting poweies to the light of different colours to realize.Prism splitter system does not produce spectrum and folds level phenomenon, but measurement scope is affected by transmitance and the dispersive power of prism material, is generally used for visible ray, and resolution ratio is relatively low.When prism is used alone, spectroscopic behaviour is relatively low, is generally applied in combination with other beam splitter, is suitable for the pre-light splitting doing in fine light splitting.
Grating beam splitting utilize diffraction principle to the light carrying out light splitting, i.e. different frequency be mapped to grating with identical incidence angle time, the position of the same order diffraction primary maximum that the light of each frequency produces is different.Grating splitting system has wider spectral measurement ranges and higher spectral resolution.But owing to being limited by slit size, the method is difficult to obtain higher luminous flux.
Fourier transformation light splitting is that the light wave utilizing different frequency has the principle of Fourier transformation relation after two-beam interference PROCESS MODULATE and carrys out light splitting between interference data and the spectrum of gained.Fourier transformation light splitting has higher spectral resolution and higher luminous flux, but is limited to change in optical path length interval and is difficult to the least, and the method is mainly used in infrared band.
Current various beam splitting system is difficult to take into account the characteristics such as spectral resolution, luminous flux, spectral measurement ranges simultaneously.Develop a kind of monochromator with higher combination property and seem the most urgent.
Summary of the invention
It is an object of the invention to provide the monochromator based on rotating filtering sheet that a kind of spectral resolution is high, luminous flux is high, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of monochromator based on rotating filtering sheet, including the first spectroscope, the second spectroscope, the 3rd spectroscope, the first rotating filtering sheet, the second rotating filtering sheet, the 3rd rotating filtering sheet, the 4th rotating filtering sheet, the first polarization splitting prism, the second polarization splitting prism, the 3rd polarization splitting prism and the 4th polarization splitting prism, described first spectroscope, the second spectroscope and the 3rd spectroscope are level crossing；Described first spectroscope is placed in parallel light path, second spectroscope is positioned in the light path of first spectroscopical transmission light, 3rd spectroscope is positioned in the light path of first spectroscopical reflection light, described first spectroscope, the second spectroscope and the 3rd spectroscopical surface normal and incident parallel light are respectively provided with 45 ° of angles, first spectroscope, the second spectroscope and the 3rd spectroscopical light-receiving area are all higher than incident ray respectively at the area of its surface projected spot, and the first spectroscope, the second spectroscope and the 3rd spectroscopical surface all scribble optical film；
First rotating filtering sheet is positioned in second spectroscopical transmitted light path, second rotating filtering sheet is positioned in second spectroscopical reflected light path, 3rd rotating filtering sheet is positioned in the 3rd spectroscopical reflected light path, 4th rotating filtering sheet is positioned in the 3rd spectroscopical transmitted light path, first rotating filtering sheet, second rotating filtering sheet, the light-receiving area of the 3rd rotating filtering sheet and the 4th rotating filtering sheet is all higher than incident ray respectively at the area of its surface projected spot, first rotating filtering sheet, second rotating filtering sheet, the surface of the 3rd rotating filtering sheet and the 4th rotating filtering sheet all scribbles optical film, first rotating filtering sheet, second rotating filtering sheet, 3rd rotating filtering sheet and the 4th rotating filtering sheet are all coupled with stepper motor respectively by bracing frame；
First polarization spectroscope is positioned in the transmitted light path of the first rotating filtering sheet, second polarization spectroscope is positioned in the transmitted light path of the second rotating filtering sheet, 3rd polarization spectroscope is positioned in the transmitted light path of the 3rd rotating filtering sheet, 4th polarization spectroscope is positioned in the transmitted light path of the 4th rotating filtering sheet, first polarization splitting prism, second polarization splitting prism, the light-receiving area of the 3rd polarization splitting prism and the 4th polarization splitting prism is all higher than incident ray respectively at the area of its surface projected spot, first polarization splitting prism, second polarization splitting prism, the surface of the 3rd polarization splitting prism and the 4th polarization splitting prism all scribbles polarization beam splitter layer.
As the further scheme of the present invention: the service band of the polarization beam splitter layer on the first polarization splitting prism, the second polarization splitting prism, the 3rd polarization splitting prism and the 4th polarization splitting prism is consistent with the service band of the first rotating filtering sheet, the second rotating filtering sheet, the 3rd rotating filtering sheet and the 4th rotating filtering sheet respectively.
As the present invention further scheme: described first spectroscope, the second spectroscope, the first rotating filtering sheet and the first polarization splitting prism form the first service aisle, first spectroscope, the second spectroscope, the second rotating filtering sheet and the second polarization splitting prism form the second service aisle, first spectroscope, the 3rd spectroscope, the 3rd rotating filtering sheet and the 3rd polarization splitting prism form the 3rd service aisle, and the first spectroscope, the 3rd spectroscope, the 4th rotating filtering sheet and the 4th polarization splitting prism form the 4th service aisle.
Compared with prior art, the invention has the beneficial effects as follows:
Present invention employs rotating filtering sheet to realize spectral scan, there is higher spectral resolution and higher luminous flux；And it is applied in combination, by many rotating filterings sheet, the scope that spread spectrum scans, the visible ray wide spectral band application to infrared light can be realized；Number of channels, wavelength band all can be customized according to actual needs, and application is flexibly；And rotating filtering sheet cost of manufacture is low, optical mirror slip is changed convenient, and later maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
1-the first spectroscope；2-the second spectroscope；3-the 3rd spectroscope；4-the first rotating filtering sheet；5-the second rotating filtering sheet；6-the 3rd rotating filtering sheet；7-the 4th rotating filtering sheet；8-the first polarization splitting prism；9-the second polarization splitting prism；10-the 3rd polarization splitting prism；11-the 4th polarization splitting prism.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Refer to Fig. 1, a kind of monochromator based on rotating filtering sheet, including the first spectroscope the 1, second spectroscope the 2, the 3rd spectroscope the 3, first rotating filtering sheet the 4, second rotating filtering sheet the 5, the 3rd rotating filtering sheet the 6, the 4th rotating filtering sheet the 7, first polarization splitting prism the 8, second polarization splitting prism the 9, the 3rd polarization splitting prism 10 and the 4th polarization splitting prism 11, described first spectroscope the 1, second spectroscope 2 and the 3rd spectroscope 3 are level crossing；Described first spectroscope 1 is placed in parallel light path, in the light path of the transmission light that the second spectroscope 2 is positioned at the first spectroscope 1, 3rd spectroscope 3 is positioned in the light path of reflection light of the first spectroscope 1, described first spectroscope 1, the surface normal of the second spectroscope 2 and the 3rd spectroscope 3 and incident parallel light are respectively provided with 45 ° of angles, first spectroscope 1, the light-receiving area of the second spectroscope 2 and the 3rd spectroscope 3 is all higher than incident ray respectively at the area of its surface projected spot, first spectroscope 1, the surface of the second spectroscope 2 and the 3rd spectroscope 3 all scribbles optical film, the light energy inciding a certain wave band on its surface is reflected, the light energy transmission of another wave band；
nullFirst rotating filtering sheet 4 is positioned in the transmitted light path of the second spectroscope 2，Second rotating filtering sheet 5 is positioned in the reflected light path of the second spectroscope 2，3rd rotating filtering sheet 6 is positioned in the reflected light path of the 3rd spectroscope 3，4th rotating filtering sheet 7 is positioned in the transmitted light path of the 3rd spectroscope 3，First rotating filtering sheet 4、Second rotating filtering sheet 5、The light-receiving area of the 3rd rotating filtering sheet 6 and the 4th rotating filtering sheet 7 is all higher than incident ray respectively at the area of its surface projected spot，First rotating filtering sheet 4、Second rotating filtering sheet 5、The surface of the 3rd rotating filtering sheet 6 and the 4th rotating filtering sheet 7 all scribbles optical film，It is used for incident light is filtered，First rotating filtering sheet 4、Second rotating filtering sheet 5、3rd rotating filtering sheet 6 and the 4th rotating filtering sheet 7 are all coupled with stepper motor respectively by bracing frame，And rotated around optical axis in meridional plane by the drive of stepper motor，Realize spectral scan；
nullFirst polarization spectroscope 8 is positioned in the transmitted light path of the first rotating filtering sheet 4，Second polarization spectroscope 9 is positioned in the transmitted light path of the second rotating filtering sheet 5，3rd polarization spectroscope 10 is positioned in the transmitted light path of the 3rd rotating filtering sheet 6，4th polarization spectroscope 11 is positioned in the transmitted light path of the 4th rotating filtering sheet 7，First polarization splitting prism 8、Second polarization splitting prism 9、The light-receiving area of the 3rd polarization splitting prism 10 and the 4th polarization splitting prism 11 is all higher than incident ray respectively at the area of its surface projected spot，First polarization splitting prism 8、Second polarization splitting prism 9、The surface of the 3rd polarization splitting prism 10 and the 4th polarization splitting prism 11 all scribbles polarization beam splitter layer，First polarization splitting prism 8、Second polarization splitting prism 9、The service band of the polarization beam splitter layer on the 3rd polarization splitting prism 10 and the 4th polarization splitting prism 11 respectively with the first rotating filtering sheet 4、Second rotating filtering sheet 5、3rd rotating filtering sheet 6 is consistent with the service band of the 4th rotating filtering sheet 7，To the first rotating filtering sheet 4、Second rotating filtering sheet 5、The light beam of the 3rd rotating filtering sheet 6 and the 4th rotating filtering sheet 7 outgoing carries out polarization spectro，And forbid that the polarised light of p-component passes through，The polarised light of s component is only allowed to pass through.
Incident parallel light forms the optical band outgoing of the first service aisle after sequentially passing through first spectroscope the 1, second spectroscope the 2, first rotating filtering sheet 4 and the first polarization splitting prism 8；Incident parallel light forms the optical band outgoing of the second service aisle after sequentially passing through first spectroscope the 1, second spectroscope the 2, second rotating filtering sheet 5 and the second polarization splitting prism 9；Incident parallel light forms the optical band outgoing of the 3rd service aisle after sequentially passing through the first spectroscope the 1, the 3rd spectroscope the 3, the 3rd rotating filtering sheet 6 and the 3rd polarization splitting prism 10；Incident parallel light forms the optical band outgoing of the 4th service aisle after sequentially passing through the first spectroscope the 1, the 3rd spectroscope the 3, the 4th rotating filtering sheet 7 and the 4th polarization splitting prism 11.
After laser beam compression shaping, form collimated light beam from object emission light out and enter monochromator, light beam is divided into four wave bands through the effect of first spectroscope the 1, second spectroscope 2 and the 3rd spectroscope 3, the light of each wave band is through corresponding rotating filtering sheet and the filtration of polarization splitting prism and scanning, completing the spectral scan of corresponding four service aisles, output is to corresponding photoelectric receiving system.
First collimated light beam is incident to the first spectroscope 1, is divided into first band and second band two-beam by the first spectroscope 1, and wherein the light of first band is reflected by the first spectroscope 1 by the first spectroscope 1 transmission, the light of second band；The light of described first band is incident to the second spectroscope 2, is divided into the 3rd wave band and the 4th wave band two-beam by the second spectroscope 2, and wherein the light of the 3rd wave band is reflected by the second spectroscope 2 by the second spectroscope 2 transmission, the light of the 4th wave band；The light of described second band, is incident to the 3rd spectroscope 3, is divided into the 5th wave band and the 6th wave band two-beam by the 3rd spectroscope 3, and wherein the light of the 5th wave band is reflected by the 3rd spectroscope 3 by the 3rd spectroscope 3 transmission, the light of the 6th wave band.
The wave-length coverage that the light of described first band is corresponding is λ 11-λ 12, the wave-length coverage that the light of described second band is corresponding is λ 21-λ 22, the wave-length coverage that the light of described 3rd wave band is corresponding is λ 31-λ 32, the wave-length coverage that the light of described 4th wave band is corresponding is λ 41-λ 42, the wave-length coverage that the light of described 5th wave band is corresponding is λ 51-λ 52, and the wave-length coverage that the light of described 6th wave band is corresponding is λ 61-λ 62；And there is a following relation:
λ 41 >=λ 11, λ 42 ＜ λ 31, λ 32≤λ 12, λ 22 ＜ λ 11, λ 61 >=λ 21,
λ 62 ＜ λ 51, λ 52≤λ 22.
The light of described 3rd wave band, is filtered after being incident to the first rotating filtering sheet 4, the light beam that output bandwidth is the narrowest, then the light splitting through the first polarization splitting prism 8, forms the output beam that polarized component is s light；Described first rotating filtering sheet 4, surface scribbles optical film so that the light transmission of certain wave band the narrowest in the range of the first service aisle.
Described first rotating filtering sheet 4, when beam incident angle is zero, its spectral characteristic is:
Half-band width is Δ λ 1, and centre wavelength is λ 10, and peak transmittance is T1max, rejection zone range delta lambda 13, and rejection zone transmitance is T1min.
Described first rotating filtering sheet 4, rotates in meridian plane under the driving of stepper motor, makes beam incident angle change between 0 degree to θ 1, it is achieved the spectral scan of the first service aisle；θ 1 is more than zero and less than 90 degree；When beam incident angle is 0 degree, the central wavelength lambda 10 of the output beam of the first rotating filtering sheet 4 is corresponding to the maximum wavelength value of the first service aisle；Along with being gradually increased of incidence angle, λ 10 is gradually reduced；Light beam is when θ 1 angle incidence angle, and λ 10 is corresponding to the minimum wavelength value of the first service aisle.
The wave-length coverage of the first service aisle is λ 14 ~ λ 15, and has λ 14 >=λ 31, λ 15≤λ 32.
First polarization splitting prism 8, surface scribbles optical film, and the scope of its service band and the first service aisle is consistent, forbids the light transmission beyond the first service aisle, forbid the light transmission of the p-polarization component of the first service aisle, only allow the light transmission of the s polarized component of the first service aisle；First polarization splitting prism 8, arranges thereafter condenser system, and the light of output converges in the photoelectric receiving system arranged on the focal plane of condenser system.
The light of described 4th wave band, is filtered after being incident to the second rotating filtering sheet 5, the light beam that output bandwidth is the narrowest, then the light splitting through the second polarization splitting prism 9, forms the output beam that polarized component is s light；Described second rotating filtering sheet 5, surface scribbles optical film so that the light transmission of certain wave band the narrowest in the range of the second service aisle.
Described second rotating filtering sheet 5, when beam incident angle is zero, its spectral characteristic is:
Half-band width is Δ λ 2, and centre wavelength is λ 20, and peak transmittance is T2max, rejection zone range delta lambda 23, and rejection zone transmitance is T2min.
Described second rotating filtering sheet 5, rotates in meridian plane under the driving of stepper motor, makes beam incident angle change between 0 degree to θ 2, it is achieved the spectral scan of the second service aisle；θ 2 is more than zero and less than 90 degree；When beam incident angle is 0 degree, the central wavelength lambda 20 of the output beam of the second rotating filtering sheet 5 is corresponding to the maximum wavelength value of the second service aisle；Along with being gradually increased of incidence angle, λ 20 is gradually reduced；Light beam is when θ 2 angle incidence angle, and λ 20 is corresponding to the minimum wavelength value of the second service aisle.
The wave-length coverage of the second service aisle is λ 24 ~ λ 25, and has λ 24 >=λ 41, λ 25≤λ 42.
Second polarization splitting prism 9, surface scribbles optical film, and the scope of its service band and the second service aisle is consistent, forbids the light transmission beyond the second service aisle, forbid the light transmission of the p-polarization component of the second service aisle, only allow the light transmission of the s polarized component of the second service aisle；Second polarization splitting prism 9, arranges thereafter condenser system, and the light of output converges in the photoelectric receiving system arranged on the focal plane of condenser system；The light of described 5th wave band, is filtered after being incident to the 4th rotating filtering sheet 7, the light beam that output bandwidth is the narrowest, then the light splitting through the 4th polarization splitting prism 11, forms the output beam that polarized component is s light；Described 4th rotating filtering sheet 7, surface scribbles optical film so that the light transmission of certain wave band the narrowest in the range of the 4th service aisle.
Described 4th rotating filtering sheet 7, when beam incident angle is zero, its spectral characteristic is:
Half-band width is Δ λ 4, and centre wavelength is λ 40, and peak transmittance is T4max, rejection zone range delta lambda 43, and rejection zone transmitance is T4min.
Described 4th rotating filtering sheet 7, rotates in meridian plane under the driving of stepper motor, makes beam incident angle change between 0 degree to θ 4, it is achieved the spectral scan of the 4th service aisle；θ 4 is more than zero and less than 90 degree；When beam incident angle is 0 degree, the central wavelength lambda 40 of the output beam of the 4th rotating filtering sheet 7 is corresponding to the maximum wavelength value of the 4th service aisle；Along with being gradually increased of incidence angle, λ 40 is gradually reduced；Light beam is when θ 4 angle incidence angle, and λ 40 is corresponding to the minimum wavelength value of the 4th service aisle.
The wave-length coverage of the 4th service aisle is λ 44 ~ λ 25, and has λ 24 >=λ 51, λ 45≤λ 52；
4th polarization splitting prism 11, surface scribbles optical film, and the scope of its service band and the 4th service aisle is consistent, forbids the light transmission beyond the 4th service aisle, forbid the light transmission of the p-polarization component of the 4th service aisle, only allow the light transmission of the s polarized component of the 4th service aisle；4th polarization splitting prism 11, arranges thereafter condenser system, and the light of output converges in the photoelectric receiving system arranged on the focal plane of condenser system；The light of described 6th wave band, is filtered after being incident to the 3rd rotating filtering sheet 6, the light beam that output bandwidth is the narrowest, then the light splitting through the 3rd polarization splitting prism 10, forms the output beam that polarized component is s light；Described 3rd rotating filtering sheet 6, surface scribbles optical film so that the light transmission of certain wave band the narrowest in the range of the 3rd service aisle.
Described 3rd rotating filtering sheet 6, when beam incident angle is zero, its spectral characteristic is:
Half-band width is Δ λ 3, and centre wavelength is λ 30, and peak transmittance is T3max, rejection zone range delta lambda 33, and rejection zone transmitance is T3min.
Described 3rd rotating filtering sheet 6, rotates in meridian plane under the driving of stepper motor, makes beam incident angle change between 0 degree to θ 3, it is achieved the spectral scan of the 3rd service aisle；θ 3 is more than zero and less than 90 degree；When beam incident angle is 0 degree, the central wavelength lambda 30 of the output beam of the 3rd rotating filtering sheet 6 is corresponding to the maximum wavelength value of the 3rd service aisle；Along with being gradually increased of incidence angle, λ 30 is gradually reduced；Light beam is when θ 3 angle incidence angle, and λ 30 is corresponding to the minimum wavelength value of the 3rd service aisle.
The wave-length coverage of the 3rd service aisle is λ 34 ~ λ 35, and has λ 34 >=λ 61, λ 35≤λ 62.
3rd polarization splitting prism 10, surface scribbles optical film, and the scope of its service band and the 6th wave band is consistent, forbids the light transmission beyond the 6th wave band, forbids the light transmission of the p-polarization component of the 6th wave band, only allows the light transmission of the s polarized component of the 6th wave band；3rd polarization splitting prism 10, arranges thereafter condenser system, and the light of output converges in the photoelectric receiving system arranged on the focal plane of condenser system；In actual application, service aisle quantity can increase and decrease as required, and service band scope can also be adjusted flexibly as required in ultraviolet light, visible ray, infrared region.
Described monochromator based on rotating filtering sheet, can combine composition spectral radiometer, carry out spectral radiance scanning survey with photelectric receiver；Composition hyperspectral imager can be combined with imaging system photelectric receiver, be applied to high light spectrum image-forming field, as measured air visibility, greenhouse gases being analyzed.
Present invention employs rotating filtering sheet to realize spectral scan, there is higher spectral resolution and higher luminous flux；And it is applied in combination, by many rotating filterings sheet, the scope that spread spectrum scans, the visible ray wide spectral band application to infrared light can be realized；Number of channels, wavelength band all can be customized according to actual needs, and application is flexibly；And rotating filtering sheet cost of manufacture is low, optical mirror slip is changed convenient, and later maintenance cost is low.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art is possessed, it is also possible to various changes can be made on the premise of without departing from this patent objective.
Claims (3)
1. a monochromator based on rotating filtering sheet, it is characterized in that, including the first spectroscope (1), the second spectroscope (2), the 3rd spectroscope (3), the first rotating filtering sheet (4), the second rotating filtering sheet (5), the 3rd rotating filtering sheet (6), the 4th rotating filtering sheet (7), the first polarization splitting prism (8), the second polarization splitting prism (9), the 3rd polarization splitting prism (10) and the 4th polarization splitting prism (11), described first spectroscope (1), the second spectroscope (2) and the 3rd spectroscope (3) are level crossing；Described first spectroscope (1) is placed in parallel light path, in the light path of the transmission light that the second spectroscope (2) is positioned at the first spectroscope (1), 3rd spectroscope (3) is positioned in the light path of reflection light of the first spectroscope (1), described first spectroscope (1), the surface normal of the second spectroscope (2) and the 3rd spectroscope (3) and incident parallel light are respectively provided with 45 ° of angles, first spectroscope (1), the light-receiving area of the second spectroscope (2) and the 3rd spectroscope (3) is all higher than incident ray respectively at the area of its surface projected spot, first spectroscope (1), the surface of the second spectroscope (2) and the 3rd spectroscope (3) all scribbles optical film；
nullFirst rotating filtering sheet (4) is positioned in the transmitted light path of the second spectroscope (2)，Second rotating filtering sheet (5) is positioned in the reflected light path of the second spectroscope (2)，3rd rotating filtering sheet (6) is positioned in the reflected light path of the 3rd spectroscope (3)，4th rotating filtering sheet (7) is positioned in the transmitted light path of the 3rd spectroscope (3)，First rotating filtering sheet (4)、Second rotating filtering sheet (5)、The light-receiving area of the 3rd rotating filtering sheet (6) and the 4th rotating filtering sheet (7) is all higher than incident ray respectively at the area of its surface projected spot，First rotating filtering sheet (4)、Second rotating filtering sheet (5)、The surface of the 3rd rotating filtering sheet (6) and the 4th rotating filtering sheet (7) all scribbles optical film，First rotating filtering sheet (4)、Second rotating filtering sheet (5)、3rd rotating filtering sheet (6) and the 4th rotating filtering sheet (7) are all coupled with stepper motor respectively by bracing frame；
First polarization spectroscope (8) is positioned in the transmitted light path of the first rotating filtering sheet (4), second polarization spectroscope (9) is positioned in the transmitted light path of the second rotating filtering sheet (5), 3rd polarization spectroscope (10) is positioned in the transmitted light path of the 3rd rotating filtering sheet (6), 4th polarization spectroscope (11) is positioned in the transmitted light path of the 4th rotating filtering sheet (7), first polarization splitting prism (8), second polarization splitting prism (9), the light-receiving area of the 3rd polarization splitting prism (10) and the 4th polarization splitting prism (11) is all higher than incident ray respectively at the area of its surface projected spot, first polarization splitting prism (8), second polarization splitting prism (9), the surface of the 3rd polarization splitting prism (10) and the 4th polarization splitting prism (11) all scribbles polarization beam splitter layer.
Monochromator based on rotating filtering sheet the most according to claim 1, it is characterized in that, the first polarization splitting prism (8), the second polarization splitting prism (9), the 3rd polarization splitting prism (10) are consistent with the service band of the first rotating filtering sheet (4), the second rotating filtering sheet (5), the 3rd rotating filtering sheet (6) and the 4th rotating filtering sheet (7) respectively with the service band of the polarization beam splitter layer on the 4th polarization splitting prism (11).
Monochromator based on rotating filtering sheet the most according to claim 1, it is characterized in that, described first spectroscope (1), second spectroscope (2), first rotating filtering sheet (4) and the first polarization splitting prism (8) form the first service aisle, first spectroscope (1), second spectroscope (2), second rotating filtering sheet (5) and the second polarization splitting prism (9) form the second service aisle, first spectroscope (1), 3rd spectroscope (3), 3rd rotating filtering sheet (6) and the 3rd polarization splitting prism (10) form the 3rd service aisle, first spectroscope (1), 3rd spectroscope (3), 4th rotating filtering sheet (7) and the 4th polarization splitting prism (11) form the 4th service aisle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610356985.0A CN105890756A (en) | 2016-05-26 | 2016-05-26 | Rotary filter-based monochromator |
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| CN201610356985.0A CN105890756A (en) | 2016-05-26 | 2016-05-26 | Rotary filter-based monochromator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220324A (en) * | 2022-08-04 | 2022-10-21 | 业成科技（成都）有限公司 | Image forming apparatus and vehicle |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591594Y (en) * | 2002-12-31 | 2003-12-10 | 天津市九维光电科技有限公司 | Variable interference filter spectral small size micro-imaging spectrograph |
| US20080252964A1 (en) * | 2007-03-02 | 2008-10-16 | Koenig Dean B | Light collimating system for schmidt-cassegrain telescope |
| CN101718670A (en) * | 2009-12-10 | 2010-06-02 | 天津同阳科技发展有限公司 | Device and method for simultaneously monitoring flue gas particles and polluted gases on line |
| CN101799327A (en) * | 2010-03-18 | 2010-08-11 | 西安交通大学 | Passive static triangle common path interference imaging spectral full-polarization detecting device |
| CN101963529A (en) * | 2010-09-03 | 2011-02-02 | 北京理工大学 | Extreme ultraviolet scanning imaging spectrometer |
| CN102680101A (en) * | 2012-05-18 | 2012-09-19 | 南京理工大学 | High-light-spectrum full-polarization detection device for interference light field imaging |
| CN103308167A (en) * | 2013-06-24 | 2013-09-18 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet, visible and ultraviolet prism chromatic dispersion imaging spectrometer |
| KR20130123190A (en) * | 2012-05-02 | 2013-11-12 | 한국과학기술원 | Spectral fluorescence lifetime imaging microscope with the use of tunable bandpass filters |
| CN103592030A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Snapshot integral view field imaging full-polarization hyperspectral detection device |
| CN103592029A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Snapshot calculation tomography imaging full-polarization hyperspectral detection device |
| CN104297910A (en) * | 2014-09-03 | 2015-01-21 | 长春理工大学 | Multi-wavelength composite beam splitting and receiving device |
| CN104501955A (en) * | 2014-12-25 | 2015-04-08 | 中国科学院长春光学精密机械与物理研究所 | Grating spectrometer capable of realizing spectral super-resolution reduction |
| CN105004421A (en) * | 2015-04-22 | 2015-10-28 | 北京丰通丰创光电科技有限责任公司 | Imaging spectrometer taking grating as boundary |
| CN105043542A (en) * | 2015-08-05 | 2015-11-11 | 中国电子科技集团公司第四十一研究所 | Continuous adjustable monochromatic output device based on gradual change optical filter |
| CN204964018U (en) * | 2015-04-30 | 2016-01-13 | 北京空间机电研究所 | Can realize super high spectral resolution's spectrum splitting system |
| CN105258796A (en) * | 2015-10-13 | 2016-01-20 | 西安应用光学研究所 | Co-optical-path miniature multispectral imaging system |
| CN205785520U (en) * | 2016-05-26 | 2016-12-07 | 上海新产业光电技术有限公司 | A kind of monochromator based on rotating filtering sheet |
-
2016
- 2016-05-26 CN CN201610356985.0A patent/CN105890756A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591594Y (en) * | 2002-12-31 | 2003-12-10 | 天津市九维光电科技有限公司 | Variable interference filter spectral small size micro-imaging spectrograph |
| US20080252964A1 (en) * | 2007-03-02 | 2008-10-16 | Koenig Dean B | Light collimating system for schmidt-cassegrain telescope |
| CN101718670A (en) * | 2009-12-10 | 2010-06-02 | 天津同阳科技发展有限公司 | Device and method for simultaneously monitoring flue gas particles and polluted gases on line |
| CN101799327A (en) * | 2010-03-18 | 2010-08-11 | 西安交通大学 | Passive static triangle common path interference imaging spectral full-polarization detecting device |
| CN101963529A (en) * | 2010-09-03 | 2011-02-02 | 北京理工大学 | Extreme ultraviolet scanning imaging spectrometer |
| KR20130123190A (en) * | 2012-05-02 | 2013-11-12 | 한국과학기술원 | Spectral fluorescence lifetime imaging microscope with the use of tunable bandpass filters |
| CN102680101A (en) * | 2012-05-18 | 2012-09-19 | 南京理工大学 | High-light-spectrum full-polarization detection device for interference light field imaging |
| CN103308167A (en) * | 2013-06-24 | 2013-09-18 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet, visible and ultraviolet prism chromatic dispersion imaging spectrometer |
| CN103592030A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Snapshot integral view field imaging full-polarization hyperspectral detection device |
| CN103592029A (en) * | 2013-10-24 | 2014-02-19 | 西安交通大学 | Snapshot calculation tomography imaging full-polarization hyperspectral detection device |
| CN104297910A (en) * | 2014-09-03 | 2015-01-21 | 长春理工大学 | Multi-wavelength composite beam splitting and receiving device |
| CN104501955A (en) * | 2014-12-25 | 2015-04-08 | 中国科学院长春光学精密机械与物理研究所 | Grating spectrometer capable of realizing spectral super-resolution reduction |
| CN105004421A (en) * | 2015-04-22 | 2015-10-28 | 北京丰通丰创光电科技有限责任公司 | Imaging spectrometer taking grating as boundary |
| CN204964018U (en) * | 2015-04-30 | 2016-01-13 | 北京空间机电研究所 | Can realize super high spectral resolution's spectrum splitting system |
| CN105043542A (en) * | 2015-08-05 | 2015-11-11 | 中国电子科技集团公司第四十一研究所 | Continuous adjustable monochromatic output device based on gradual change optical filter |
| CN105258796A (en) * | 2015-10-13 | 2016-01-20 | 西安应用光学研究所 | Co-optical-path miniature multispectral imaging system |
| CN205785520U (en) * | 2016-05-26 | 2016-12-07 | 上海新产业光电技术有限公司 | A kind of monochromator based on rotating filtering sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220324A (en) * | 2022-08-04 | 2022-10-21 | 业成科技（成都）有限公司 | Image forming apparatus and vehicle |
| CN115220324B (en) * | 2022-08-04 | 2023-11-14 | 业成科技（成都）有限公司 | Imaging device and vehicle |
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Inventor after: Miao Tongqun Inventor after: Zhang Shengrong Inventor before: Miao Tongqun Inventor before: Zhang Shengrong Inventor before: Wu Zhijun Inventor before: Wang Zhizhou Inventor before: Liu Baoxing |