CN117825003A - Transmittance testing device based on transfer function instrument system - Google Patents
Transmittance testing device based on transfer function instrument system Download PDFInfo
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- CN117825003A CN117825003A CN202311712858.6A CN202311712858A CN117825003A CN 117825003 A CN117825003 A CN 117825003A CN 202311712858 A CN202311712858 A CN 202311712858A CN 117825003 A CN117825003 A CN 117825003A
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- 238000002834 transmittance Methods 0.000 title claims abstract description 34
- 238000012360 testing method Methods 0.000 title claims abstract description 31
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
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- 238000001228 spectrum Methods 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
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- 229910052732 germanium Inorganic materials 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
- G01M11/0214—Details of devices holding the object to be tested
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0292—Testing optical properties of objectives by measuring the optical modulation transfer function
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Abstract
The invention discloses a transmittance testing device based on a transfer function instrument system, which comprises: a light source; a collimation system; the double-switching fixing platform comprises two switchable linear guide rail fixing tables, and the beam shrinking system and the optical device to be tested are respectively moved along the linear guide rail to enable the beam shrinking system and the optical device to be tested to cut in and cut out the optical path; the beam shrinking system is used for shrinking the beam of the straight target, and the light after the beam shrinking is incident to the optical device to be measured; the adjustable diaphragm is arranged between the two switchable linear guide rail fixing tables and is used for controlling the aperture of an incident beam; the emergent end of the integrating sphere is connected with the image analyzer through the relay system, and the light beam enters the integrating sphere after passing through the optical device to be tested; the image analyzer is fixed on the three-dimensional translation stage, and performs optical axis alignment with the optical device to be tested by adjusting the three-dimensional translation stage; the image analyzer is used for receiving the emergent energy of the optical device to be tested through the integrating sphere, performing photoelectric conversion and outputting. The invention increases the enhanced transmittance test function based on the hardware platform of the transfer function instrument.
Description
Technical Field
The invention relates to the field of optical testing, in particular to a transmittance testing device based on a transfer function instrument system.
Background
The transmittance, the ratio of the outgoing light flux to the incoming light flux of the optical system, is an important optical performance index of the optical system and the optical element. Due to the influences of factors such as surface reflection, material absorption, internal bubbles, surface defects and the like of the optical element, the luminous flux of the light passing through the optical system or the optical element is attenuated to different degrees, and the attenuation degree is quantitatively measured, so that the light is a core target of the transmittance test.
The prior transmittance testing technology at home and abroad mainly has the following defects: the size and the appearance of the optical device to be tested are strictly limited; the large-caliber optical system or the special-shaped optical element cannot be measured; the full spectrum cannot be covered; limited measurement capability for weak signals, etc.
Disclosure of Invention
The invention mainly aims to provide a transmittance testing device based on a transfer function instrument system, which realizes the transmittance measuring capability of the system, fully plays the effect of the transfer function instrument system and greatly enhances the practicability of the system.
The technical scheme adopted by the invention is as follows:
the utility model provides a transmissivity testing arrangement based on transfer letter appearance system, include:
a light source;
the collimation system is used for collimating and then emitting the light emitted by the light source;
the double-switching fixed platform comprises two carrying platforms respectively arranged on two linear guide rails, wherein the two carrying platforms respectively place a beam shrinking system and a tested optical device, and the beam shrinking system and the tested optical device are respectively moved along the linear guide rails to enable the beam shrinking system and the tested optical device to cut into and out of a light path;
the beam shrinking system adopts a Cassegrain Lin Fanshe type optical system to shrink the beam of the straight target, and the shrunk beam is incident to the optical device to be measured;
the adjustable diaphragm is arranged between the beam shrinking system and the optical device to be tested and is used for controlling the aperture of the incident beam;
the emergent end of the integrating sphere is connected with the image analyzer through the relay system, and the light beam enters the integrating sphere after passing through the optical device to be tested;
the image analyzer is fixed on the three-dimensional translation stage, and performs optical axis alignment with the optical device to be tested by adjusting the three-dimensional translation stage; the image analyzer is used for receiving the emergent energy of the optical device to be tested through the integrating sphere, performing photoelectric conversion and outputting.
The collimation system adopts the off-axis reflection optical system and consists of two groups of reflectors.
With the technical scheme, the light source comprises a visible light source and an infrared light source.
With the technical proposal, the integrating sphere comprises a visible light integrating sphere and an infrared integrating sphere.
By adopting the technical scheme, barium sulfate is plated on the inner surface of the visible light integrating sphere, and the reflection coefficient of the visible spectrum is higher than 99%; the inner surface of the infrared integrating sphere is plated with a gold reflecting film, and the infrared spectrum reflecting system is higher than 99%.
By adopting the technical scheme, the light source is internally integrated with the optical filter and the chopper, and the optical filter is arranged at the front end of the light source and is used for limiting the measurement spectrum range; the chopper is arranged at the rear end of the light source and is used for modulating the emergent light beam of the light source into modulated light with a specified frequency.
By adopting the technical scheme, the beam shrinking system adopts 4: the beam shrinkage coefficient of 1 improves the energy density of the measured beam by 16 times.
By adopting the technical scheme, the optical device to be tested comprises an optical lens and an optical element, wherein the optical lens comprises an imaging lens, an illumination lens, a projection lens or a microscope lens; the optical element comprises a flat sheet, a lens or a cylindrical element.
By adopting the technical scheme, the relay system adopts a near-field conjugate optical design, the magnification is 1 time, and the relay system is divided into a visible light relay lens and an infrared relay lens according to a measured spectrum.
The invention also provides a transmittance testing method based on the transfer function instrument, which is based on the technical scheme, and the transmittance testing device based on the transfer function instrument system comprises the following steps:
fixing the optical device to be tested on one of the object carrying platforms of the double-switching fixing platform; the beam shrinking system is fixed on the other carrying platform;
starting a light source, collimating light emitted by the light source by a collimation system, emitting the collimated light to a beam shrinking system, carrying the collimated light to enter a tested optical device, adjusting the position of the tested optical device, and ensuring that the optical axis of the tested optical device is aligned with the incident optical axis of the light source;
the integrating sphere is connected to the image analyzer, and the image analyzer is moved by the three-dimensional translation stage to align with the optical axis of the optical device to be tested, so that the emergent light of the optical device to be tested enters the integrating sphere, and the emergent light spots of the integrating sphere are acquired by the image analyzer to obtain the energy value of the optical device to be tested;
the measured optical device is translated out of the optical path by driving the object carrying platform to move along the linear guide rail, and then measurement is carried out, so that an empty target energy value is obtained;
and resolving the energy value of the measured optical device and the empty target energy value to obtain a transmittance curve.
The invention has the beneficial effects that: according to the invention, on the basis of the traditional transfer function instrument system hardware, the implementation of the double-switching fixed platform, the beam shrinking system, the integrating sphere and the system transmittance measuring method is added, so that the system transmittance measuring capability is realized, the utility of the transfer function instrument system is fully exerted, and the system practicability is greatly enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a transmittance measuring device based on a transfer function system according to an embodiment of the present invention;
wherein: 1 is a light source, 2 is a collimation system, 3 is a beam shrinking system, 4 is a double-switching fixed platform, 5 is an adjustable diaphragm, 6 is a measured optical device, 7 is an image analyzer, 8 is a relay system, 9 is an integrating sphere, and 10 is a three-dimensional translation platform;
FIG. 2 is a schematic view of a light source according to an embodiment of the present invention;
FIG. 3 is a schematic view of an optical path of a beam shrinking system according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a dual-switch fixture platform according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an embodiment of the invention, such as an analyzer;
FIG. 6 is a schematic diagram of a relay system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a three-dimensional translation stage according to an embodiment of the present invention;
FIG. 8 is a graph showing a transmittance test of a system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that the illustrations provided in the embodiments of the invention are merely schematic illustrations of the basic concepts of the invention, and thus only the components related to the invention are shown in the drawings, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.
In the present invention, it should also be noted that, as terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in the specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, as used herein, are used for descriptive and distinguishing purposes only and are not to be construed as indicating or implying a relative importance.
As shown in fig. 1, a transmittance testing device based on a transfer function meter system according to an embodiment of the present invention includes:
the light source 1 can comprise a visible light source module and an infrared light source module;
the collimation system 2 adopts an off-axis reflection optical system and consists of two groups of reflectors. The light beam reflection mirror comprises a first reflecting mirror and a second reflecting mirror, wherein the first reflecting mirror is made of microcrystalline materials, and a reflecting surface is a plane and is used for turning light rays; the second reflecting mirror is made of microcrystalline material, the reflecting surface is an off-axis paraboloid, the curvature radius is 6000mm, and the reflecting mirror is used for converting light rays and collimating light rays. The first reflecting mirror and the second reflecting mirror integrally form a collimation system with a focal length of 3000mm, and the collimation system is used for carrying out turn collimation on light emitted by the light source and then emitting the light; the light source 1 and the collimation system 2 are matched to form a collimation target to emit, so that the infinite target simulation is realized;
the double-switching fixed platform 4 comprises two switchable linear guide rail fixed tables, a beam shrinking system 3 and a tested optical device 6 are respectively placed on the two switchable linear guide rail fixed tables, and the beam shrinking system and the tested optical device can be respectively moved along the linear guide rail by controlling a driving motor so that the beam shrinking system and the tested optical device are switched in and out of a light path;
the beam shrinking system 3 adopts a Cassegrain Lin Fanshe type optical system to shrink the beam of the straight target, and the shrunk beam is incident to the optical device to be measured;
and the adjustable diaphragm 5 is arranged between the two switchable linear guide rail fixing tables and is used for controlling the aperture of the incident beam so as to ensure that the aperture of the incident beam is not larger than the aperture of the optical device 6 to be tested.
An integrating sphere 9, the emergent end of which is connected with the image analyzer 7 through a relay system 8, and the light beam enters the integrating sphere after passing through the optical device to be measured;
an image analyzer 7 fixed on the three-dimensional translation stage 10 and performing optical axis alignment with the optical device to be measured by adjusting the three-dimensional translation stage; the image analyzer 7 is configured to receive the outgoing energy of the optical device under test through an integrating sphere, perform photoelectric conversion, and output the converted energy. As shown in fig. 7, the three-dimensional translation stage is a high-precision translation stage, and has a high-precision translation function in three directions X, Y, Z.
The invention adopts Cassegrain double-reflecting mirror as beam shrinking system for realizing energy enhancement in the transfer function instrument system for the first time. The Cassegrain double-reflecting mirror is generally used for an ultra-long focal optical system and a laser shaping system, and mainly aims to shorten the length and control the divergence angle.
Further, the integrating sphere comprises a visible light integrating sphere and an infrared integrating sphere. Barium sulfate is plated on the inner surface of the visible light integrating sphere, and the reflection coefficient of the visible spectrum is higher than 99%; the inner surface of the infrared integrating sphere is plated with a gold reflecting film, and the infrared spectrum reflecting system is higher than 99%. In one embodiment of the invention, the integrating sphere adopts a visible light integrating sphere and an infrared integrating sphere, the diameter of an inlet of the integrating sphere is 18mm and 25mm, the integrating sphere is connected through replaceable threads, the diameter of an outlet of the integrating sphere is 2mm, 6mm and 12mm, and the integrating sphere is connected through the replaceable threads.
The optical device 6 to be tested is generally an optical lens and an optical element, the optical lens may be, but not limited to, an imaging lens, an illumination lens, a projection lens, and a microscope lens, and the optical element may be, but not limited to, a flat lens, a lens type, and a cylindrical type. The optical device 6 to be tested can be fixed on the fixed platform through a fixture.
Specifically, as shown in fig. 2, the light source is a specially designed component, and the casing of the light source is further provided with a control display screen 21. The radiation source, target, filter 22 and chopper are integrated internally, enabling a spectral output of 0.4-12 μm. The optical filter 22 is disposed at the front end of the light source and is used for limiting the measurement spectrum range; the chopper is arranged at the rear end of the light source and is used for modulating the emergent light beam of the light source into modulated light with a specified frequency.
As shown in fig. 5, the image analyzer adopts an infrared point source detector and a fixed structure, adopts 3 types of point source detectors, and respectively adopts a visible light point source detector, a short-medium wave infrared point source detector and a long-wave infrared point source detector according to measured spectrums. The fixed structure is used for providing installation and fixation for the infrared point source detector, fixing the infrared point source detector on the three-dimensional translation table, and realizing quick replacement by adopting a quick-assembly interface design.
As shown in fig. 3, the beam shrinking system 3 adopts a cassegrain dual-reflection optical system and consists of two reflectors 31 and 32, wherein one reflector 31 adopts microcrystalline glass, the reflecting surface is a paraboloid, and the curvature radius is 240mm; the other mirror 32 is made of glass ceramics, and the reflecting surface is also a paraboloid with a radius of curvature of 60mm. The interval between two reflectors is 90mm, and 4 is jointly formed by the two reflectors: the beam shrinking system can improve the energy density of the measured beam by 16 times, can realize weak signal amplification and improves the measurement repetition precision of the system.
Furthermore, the beam shrinking system 3 adopts an integrated structural design, and two reflectors are fixedly arranged on a lens base structural member, so that the structure can ensure good optical axis consistency. The two reflectors are fixed by glue filling, so that the stress deformation of the reflectors can be reduced. The mirror base is made of indium steel, so that the deformation of materials in high and low temperature environments can be reduced. The beam shrinking system is fixed through an integrated lens seat structural part and can be integrally placed on the carrying platform of the double-switching fixed platform. The integral mirror base structural member adopts a four-foot supporting mode, and the height design can ensure that the optical axis of the beam shrinking system is consistent with the optical axis of the collimation system.
As shown in fig. 4, the dual switching fixture platform 4 comprises two switchable monomers. One of the monomers consists of a driving motor 41, a carrying platform 42, a guide rail 43 and a screw rod 44, the driving motor 41 is controlled by a controller to rotate to drive the screw rod 44 to rotate, and the rotation of the screw rod 44 drives the carrying platform 42 to do linear motion along the guide rail, so that the carrying platform 42 cuts into and cuts out a light path. One of the single object carrying platforms is provided with a beam shrinking system, and the other single object carrying platform is provided with a tested optical device, so that the flatness is strictly required. The guide rail and the screw rod are made of steel materials and form a linear motion mechanism together, so that the motor can be ensured to drive the carrying platform to do linear motion when working.
As shown in fig. 6, the relay system adopts a near-field conjugate optical design, the magnification is 1 time, and the relay system is divided into a visible light relay lens and an infrared relay lens according to a measured spectrum. The visible light relay lens is made of glass materials, and the infrared relay lens is made of two infrared materials, namely monocrystalline silicon and monocrystalline germanium.
The transmittance testing method based on the transfer function instrument of the invention and the transmittance testing device based on the embodiment mainly comprise the following steps:
fixing the optical device to be tested on one single object carrying platform of the double-switching fixing platform; the beam shrinking system is fixed on the carrying platform of the other monomer;
the light source is started, the light emitted by the light source is collimated by the collimation system and then emitted to the beam shrinking system, and then enters the optical device to be measured after being condensed by the beam shrinking system. The surface of the optical device to be measured can be tightly attached to a plane reflector, at the moment, the light rays reflected by the reflector by the incident collimated light can return to the light source again through the collimating system to form auto-collimated image points, the positions of the auto-collimated image points are observed, the positions of the optical device to be measured are adjusted, and when the auto-collimated image points are overlapped with the emergent holes, the optical axis of the optical device to be measured is aligned with the incident optical axis of the light source; placing an adjustable diaphragm between the double switching fixed platforms, controlling the aperture of an incident beam, and ensuring that the aperture of the incident beam is not larger than the aperture of an optical device to be tested;
the integrating sphere is connected to the image analyzer, and the image analyzer is moved by the three-dimensional translation stage to align with the optical axis of the optical device to be measured, and the adjustment method is to visually observe whether all emergent light spots of the optical device to be measured enter the incident end of the integrating sphere, so that light leakage cannot occur. Semi-transparent parchment paper may be used to assist in the determination. When the optical axis is aligned, the emergent light of the optical device to be tested enters the integrating sphere, and the emergent light spot of the integrating sphere is acquired by the image analyzer to obtain the energy value of the optical device to be tested;
controlling a driving motor to drive one of the monomers, translating the optical device to be measured out of the optical path, and measuring to obtain an empty target energy value;
the energy value and the empty target energy value of the measured optical device are resolved to obtain a transmittance curve and transmittance values, as shown in fig. 8, and the measured optical device in this embodiment selects a flat sheet.
According to the invention, a beam shrinking system, a double-switching fixed platform, an integrating sphere and a relay system are added into a traditional transfer function instrument system, so that weak signal transmittance testing capability is realized.
Specifically, the invention introduces a beam shrinking system at the rear end of the collimator system of the transfer function instrument to carry out 4: and 1 beam shrinking, 16 times of energy enhancement is realized, and remarkable effect is achieved.
The switching measurement is realized by adopting a double-switching fixed platform device, the double-switching fixed device comprises monomers, the beam shrinking system and the optical device to be measured are respectively arranged on the carrying platforms of the monomers, and the optical device to be measured is cut into and out of the optical path by controlling a driving motor. Because the linear guide rail and the carrying platform have higher movement and fixing precision, the consistency of the beam shrinking system and the optical axis of the optical device to be measured in the cutting-in and cutting-out process can be ensured. The double-switching fixed platform has strong practicability, greatly improves the measurement efficiency and ensures the measurement accuracy.
The relay system design is added between the integrating sphere and the image analyzer, so that the measurement accuracy can be effectively improved. In a conventional transmittance test system, the emergent end of the integrating sphere is in butt joint with the image analyzer, but because the interfaces of the image analyzer and the integrating sphere are not matched, gaps often exist between the image analyzer and the integrating sphere, so that light energy loss or stray light is caused, and the test precision is reduced. In the invention, a relay system is added between the integrating sphere and the image analyzer, seamless butt joint of the integrating sphere and the image analyzer is ensured through interface design, and the relay system adopts the following steps: and the 1-multiplying power design ensures that the transmitted light energy can completely enter the image, and effectively improves the measurement accuracy.
It should be noted that each step/component described in the present application may be split into more steps/components, or two or more steps/components or part of the operations of the steps/components may be combined into new steps/components, as needed for implementation, to achieve the object of the present invention.
The sequence numbers of the steps in the above embodiments do not mean the order of execution, and the execution order of the processes should be determined by the functions and the internal logic, and should not be construed as limiting the implementation process of the embodiments of the present application.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. The utility model provides a transmissivity testing arrangement based on transfer letter appearance system which characterized in that includes:
a light source;
the collimation system is used for collimating and then emitting the light emitted by the light source;
the double-switching fixed platform comprises two carrying platforms respectively arranged on two linear guide rails, wherein the two carrying platforms respectively place a beam shrinking system and a tested optical device, and the beam shrinking system and the tested optical device are respectively moved along the linear guide rails to enable the beam shrinking system and the tested optical device to cut into and out of a light path;
the beam shrinking system adopts a Cassegrain Lin Fanshe type optical system to shrink the beam of the straight target, and the shrunk beam is incident to the optical device to be measured;
the adjustable diaphragm is arranged between the beam shrinking system and the optical device to be tested and is used for controlling the aperture of the incident beam;
the emergent end of the integrating sphere is connected with the image analyzer through the relay system, and the light beam enters the integrating sphere after passing through the optical device to be tested;
the image analyzer is fixed on the three-dimensional translation stage, and performs optical axis alignment with the optical device to be tested by adjusting the three-dimensional translation stage; the image analyzer is used for receiving the emergent energy of the optical device to be tested through the integrating sphere, performing photoelectric conversion and outputting.
2. The transmittance testing device based on a transfer function system according to claim 1, wherein the collimation system adopts an off-axis reflection optical system and consists of two groups of reflectors.
3. The device for testing the transmittance of a system based on a transfer function according to claim 1, wherein the light source comprises a visible light source and an infrared light source.
4. The transmittance testing device based on a transfer function system according to claim 1, wherein the integrating sphere comprises a visible light integrating sphere and an infrared integrating sphere.
5. The transmittance testing device based on a transfer function instrument system according to claim 1, wherein the inner surface of the visible light integrating sphere is plated with barium sulfate, and the visible spectrum reflection coefficient is higher than 99%; the inner surface of the infrared integrating sphere is plated with a gold reflecting film, and the infrared spectrum reflecting system is higher than 99%.
6. The transmittance testing device based on a transfer function meter system according to claim 1, wherein a filter and a chopper are integrated in the light source, and the filter is placed at the front end of the light source and used for limiting the measurement spectrum range; the chopper is arranged at the rear end of the light source and is used for modulating the emergent light beam of the light source into modulated light with a specified frequency.
7. The transmittance testing device based on a transfer function system according to claim 1, wherein the beam shrinking system uses 4: the beam shrinkage coefficient of 1 improves the energy density of the measured beam by 16 times.
8. The transmission testing device based on the transfer function system according to claim 1, wherein the optical device to be tested comprises an optical lens and an optical element, wherein the optical lens comprises an imaging lens, an illumination lens, a projection lens or a microscope lens; the optical element comprises a flat sheet, a lens or a cylindrical element.
9. The transmittance testing device based on a transfer function meter system according to claim 1, wherein the relay system adopts a near-field conjugate optical design, has a magnification of 1 time, and is divided into a visible relay lens and an infrared relay lens according to a measured spectrum.
10. A transmittance testing method based on a transfer function meter, characterized in that the method is based on the transmittance testing device based on a transfer function meter system according to any one of claims 1-9, comprising the following steps:
fixing the optical device to be tested on one of the object carrying platforms of the double-switching fixing platform; the beam shrinking system is fixed on the other carrying platform;
starting a light source, collimating light emitted by the light source by a collimation system, emitting the collimated light to a beam shrinking system, carrying the collimated light to enter a tested optical device, adjusting the position of the tested optical device, and ensuring that the optical axis of the tested optical device is aligned with the incident optical axis of the light source;
the integrating sphere is connected to the image analyzer, and the image analyzer is moved by the three-dimensional translation stage to align with the optical axis of the optical device to be tested, so that the emergent light of the optical device to be tested enters the integrating sphere, and the emergent light spots of the integrating sphere are acquired by the image analyzer to obtain the energy value of the optical device to be tested;
the measured optical device is translated out of the optical path by driving the object carrying platform to move along the linear guide rail, and then measurement is carried out, so that an empty target energy value is obtained;
and resolving the energy value of the measured optical device and the empty target energy value to obtain a transmittance curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311712858.6A CN117825003A (en) | 2023-12-13 | 2023-12-13 | Transmittance testing device based on transfer function instrument system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311712858.6A CN117825003A (en) | 2023-12-13 | 2023-12-13 | Transmittance testing device based on transfer function instrument system |
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| CN117825003A true CN117825003A (en) | 2024-04-05 |
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| CN202311712858.6A Pending CN117825003A (en) | 2023-12-13 | 2023-12-13 | Transmittance testing device based on transfer function instrument system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118444460A (en) * | 2024-07-11 | 2024-08-06 | 湖北久之洋红外系统股份有限公司 | Medium-short wave infrared relay lens for transfer function instrument |
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| JPH11142241A (en) * | 1997-11-06 | 1999-05-28 | Topcon Corp | Measuring apparatus for spectral transmittance |
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| CN112771403A (en) * | 2019-09-04 | 2021-05-07 | 深圳市速腾聚创科技有限公司 | Laser radar |
| CN115327570A (en) * | 2022-08-30 | 2022-11-11 | 合肥工业大学 | Multi-aperture laser radar receiving system |
| CN115931306A (en) * | 2022-11-23 | 2023-04-07 | 湖北久之洋红外系统股份有限公司 | High-low temperature optical transfer function and transmittance testing system |
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| JPH11142241A (en) * | 1997-11-06 | 1999-05-28 | Topcon Corp | Measuring apparatus for spectral transmittance |
| CN102338692A (en) * | 2010-07-16 | 2012-02-01 | 北京国科世纪激光技术有限公司 | Device and method for measuring static extinction ratio |
| CN112771403A (en) * | 2019-09-04 | 2021-05-07 | 深圳市速腾聚创科技有限公司 | Laser radar |
| CN115327570A (en) * | 2022-08-30 | 2022-11-11 | 合肥工业大学 | Multi-aperture laser radar receiving system |
| CN115931306A (en) * | 2022-11-23 | 2023-04-07 | 湖北久之洋红外系统股份有限公司 | High-low temperature optical transfer function and transmittance testing system |
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| CN118444460A (en) * | 2024-07-11 | 2024-08-06 | 湖北久之洋红外系统股份有限公司 | Medium-short wave infrared relay lens for transfer function instrument |
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