CN212030878U - Optical axis parallelism calibration device of dual-band scene simulator - Google Patents
Optical axis parallelism calibration device of dual-band scene simulator Download PDFInfo
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- CN212030878U CN212030878U CN202020391684.3U CN202020391684U CN212030878U CN 212030878 U CN212030878 U CN 212030878U CN 202020391684 U CN202020391684 U CN 202020391684U CN 212030878 U CN212030878 U CN 212030878U
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Abstract
The utility model provides a dual-band scene simulator optical axis parallelism calibration device, including calibrator, measured simulator, optics air supporting platform, computer and heavy-calibre total reflection formula collimator, the calibrator includes spectroscope, visible light ccd, thermal imager, and the collimator is inside to include primary mirror, secondary mirror and fluorescent tube passageway; the collimator is arranged on the optical air-floating platform and horizontally fixed, the measured simulator is arranged on the supporting tool, the supporting tool is horizontally fixed on the optical air-floating platform, and two beams of parallel light emitted by the measured simulator are emitted into the collimator along the emission opening; the spectroscope can divide the scene light emitted by the light pipe channel into visible light and infrared light, the visible light is focused on the visible light ccd through the spectroscope, and the infrared light is focused on the thermal imager through the reflection of the spectroscope; and the computer is electrically connected with the simulator to be tested, the visible light ccd and the thermal imager. The utility model discloses simple structure, the scene simulator that adaptable multiple optical axis interval and position were arranged can realize that the pixel level is markd.
Description
Technical Field
The utility model relates to the field of optical technology, particularly, relate to a dual band scene simulator optical axis parallelism calibration device.
Background
The scene simulator is a key device of a photoelectric imaging detection device, a photoelectric monitoring device and the like, and the simulation precision of the dual-band dual-channel depends on the parallelism of two optical axes of the simulator, so that the parallelism calibration device of the simulator is particularly important. However, the conventional scene simulator has a complex structure and is difficult to operate, and the conventional scene simulator is not suitable for arrangement of various optical axis distances and positions, and cannot realize pixel-level calibration, so that a scene simulator capable of realizing arrangement of various optical axis distances and positions is urgently needed.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two wave band scene simulator optical axis parallelism calibration device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a dual-band scene simulator optical axis parallelism calibration device comprises a calibrator, a simulator to be tested, an optical air floating platform, a computer and a large-aperture total reflection type collimator, wherein the calibrator comprises a spectroscope, visible light ccd and a thermal imager;
the large-caliber total reflection type collimator is arranged on the optical air floatation platform and is horizontally fixed, the measured simulator is arranged on the supporting tool, the supporting tool is horizontally fixed on the optical air floatation platform, and two beams of parallel light emitted by the measured simulator can be emitted into the large-caliber total reflection type collimator along the emission port;
the spectroscope can divide scene light emitted through the light pipe channel into visible light and infrared light, the visible light can penetrate the spectroscope and be focused on visible light ccd, and the infrared light is reflected by the spectroscope and is focused on the thermal imager;
and the computer is electrically connected with the simulator to be tested, the visible light ccd and the thermal imager.
Furthermore, the spectroscope is plated with a metal reflecting film for dividing the emergent scene light into visible light and infrared light.
Further, the spectroscope is fixed to the calibrator and the angle is not adjustable.
Further, the height of the measured simulator can be adjusted through the supporting tool.
The utility model discloses a theory of operation: the device is characterized in that two paths of scene light projected by a measured simulator are converged into a calibrator through a large-caliber total reflection type collimator, and visible light ccd, a thermal imager and a spectroscope are arranged in the calibrator. The large-caliber total reflection type collimator is arranged on an optical air floatation platform and is horizontally fixed, the measured simulator is arranged on a supporting tool, the supporting tool is horizontally fixed on the optical air floatation platform, the supporting tool can finely adjust the height of the measured simulator, and the computer is electrically connected with the measured simulator, the visible light ccd and the thermal imager.
The device is used for observing the cross target scene output by the simulator to be detected, if the cross target central pixel acquired by the two channels is not on the central pixel of the visible light ccd and the thermal imager, the relative position of the calibrator and the simulator to be detected is adjusted by taking one channel as a reference, so that any optical axis falls on the central pixel of the visual field of the corresponding channel, the whole device is fixed, the other optical axis is adjusted until the optical axis finally reaches the central coincidence, and the system reaches the pixel-level positioning coincidence target at this moment, so that the calibration of the optical axis parallelism of the dual-band scene simulator is realized.
Compared with the prior art, the utility model discloses following beneficial effect has: 1. the device has novel structure and strong practicability; 2. the device is used for calibrating the optical axis parallelism of the dual-band scene simulator, is simple to operate and can quickly calibrate the optical axis parallelism; 3. the device can adapt to scene simulators with various optical axis intervals and position arrangements, and can realize pixel-level calibration.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the optical axis parallelism calibration device of the dual-band scene simulator of the present invention.
In the figure: 1. the device comprises a calibrator, 2 an optical air floating platform, 3 a computer, 4 a spectroscope, 5 visible light ccd, 6 a thermal imager, 7 a large-caliber total reflection type collimator, 8 a primary mirror, 9 a secondary mirror, 10 a light pipe channel, 11 a supporting tool, 12 an emission port and 13 a measured simulator.
Detailed Description
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
as shown in fig. 1, the optical axis parallelism calibrating device for the dual-band scene simulator comprises a calibrator 1, a measured simulator 13, an optical air-floating platform 2, a computer 3 and a large-aperture total reflection type collimator 7, wherein the calibrator 1 comprises a spectroscope 4, visible light ccd5 and a thermal imager 6, and the large-aperture total reflection type collimator 7 comprises a primary mirror 8, a secondary mirror 9 and a light pipe channel 10 inside;
the large-caliber total reflection type collimator 7 is arranged on the optical air floating platform 2 and is horizontally fixed, the measured simulator 13 is arranged on the supporting tool 11, the supporting tool 11 is horizontally fixed on the optical air floating platform 2, and two beams of parallel light emitted by the measured simulator 13 can be emitted into the large-caliber total reflection type collimator 7 along the emission opening 12;
the spectroscope 4 can divide the scene light emitted by the light pipe channel 10 into visible light and infrared light, the visible light can be transmitted by the spectroscope 4 and focused on the visible light ccd5, and the infrared light is reflected by the spectroscope 4 and focused on the thermal imager 6;
the computer 3 is electrically connected with the simulator to be tested 13, the visible light ccd5 and the thermal imager 6.
According to the above, the spectroscope 4 is plated with a metal reflection film for dividing the emitted scene light into visible light and infrared light.
According to the above, the spectroscope 4 is fixed to the calibrator 1 and the angle is not adjustable.
According to the above, the supporting tool 11 can adjust the height of the measured simulator 1.
The optical axis parallelism calibrating device of the dual-band scene simulator comprises a calibrator 1, a tested simulator 13, an optical air floating platform 2, a computer 3 and a large-caliber total reflection type collimator 7, and is used for testing and calibrating the optical axis parallelism of an emergent light path of the dual-band scene simulator.
The device is characterized in that two paths of scene light projected by a measured simulator 13 are converged into a calibrator 1 through a large-caliber total reflection type collimator 7, and a visible light ccd5, a thermal imager 6 and a spectroscope 4 are arranged in the calibrator 1. The spectroscope 4 is plated with a metal reflection film for dividing emergent scene light into visible light and infrared light, wherein the infrared light is reflected and focused on the thermal image 6, the visible light is focused on visible light ccd5 through the spectroscope 4, the center positions of the visible light ccd5 and the thermal imager 6 are accurately calibrated when being installed so as to ensure the measurement precision, the large-caliber total reflection type collimator is installed on the optical air floatation platform and horizontally fixed, the measured simulator 13 is installed on the supporting tool 11, the supporting tool 11 is horizontally fixed on the optical air floatation platform, the supporting tool 11 can finely adjust the height of the measured simulator 13, and the computer 3 is electrically connected with the measured simulator 13, the visible light ccd5 and the thermal imager 6.
The device is used for observing the cross target scene output by the simulator to be detected, if the cross target central pixel acquired by the two channels is not on the central pixel of the visible light ccd and the thermal imager, the relative position of the calibrator and the simulator to be detected is adjusted by taking one channel as a reference, so that any optical axis falls on the central pixel of the visual field of the corresponding channel, the whole device is fixed, the other optical axis is adjusted until the optical axis finally reaches the central coincidence, and the system reaches the pixel-level positioning coincidence target at this moment, so that the calibration of the optical axis parallelism of the dual-band scene simulator is realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The optical axis parallelism calibrating device of the dual-band scene simulator is characterized by comprising a calibrator (1), a simulator to be tested (13), an optical air floating platform (2), a computer (3) and a large-caliber total reflection type collimator (7), wherein the calibrator (1) comprises a spectroscope (4), a visible light ccd (5) and a thermal imager (6), and the large-caliber total reflection type collimator (7) internally comprises a primary mirror (8), a secondary mirror (9) and a collimator channel (10);
the large-caliber total reflection type collimator (7) is arranged on the optical air floating platform (2) and is horizontally fixed, the measured simulator (13) is arranged on the supporting tool (11), the supporting tool (11) is horizontally fixed on the optical air floating platform (2), and two beams of parallel light emitted by the measured simulator (13) can enter the large-caliber total reflection type collimator (7) along the emitting port (12);
the light splitter (4) can split scene light emitted by the light pipe channel (10) into visible light and infrared light, the visible light can penetrate the light splitter (4) and is focused on visible light ccd (5), and the infrared light is reflected by the light splitter (4) and is focused on the thermal imager (6);
and the computer (3) is electrically connected with the simulator to be tested (13), the visible light ccd and the thermal imager (6).
2. The optical axis parallelism calibration device of the dual-band scene simulator according to claim 1, wherein the spectroscope (4) is plated with a metal reflection film for dividing the emitted scene light into visible light and infrared light.
3. The optical axis parallelism calibration device of the dual-band scene simulator according to claim 1, wherein the spectroscope (4) is fixed in the calibrator (1) and the angle is not adjustable.
4. The optical axis parallelism calibration device of the dual-band scene simulator according to claim 1, wherein the supporting tool (11) can adjust the height of the simulator under test (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020391684.3U CN212030878U (en) | 2020-03-25 | 2020-03-25 | Optical axis parallelism calibration device of dual-band scene simulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2789277C1 (en) * | 2022-02-15 | 2023-02-02 | Акционерное общество "Научно-производственное объединение "Государственный институт прикладной оптики" (АО "НПО ГИПО ") | Dynamic scene simulation device |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2789277C1 (en) * | 2022-02-15 | 2023-02-02 | Акционерное общество "Научно-производственное объединение "Государственный институт прикладной оптики" (АО "НПО ГИПО ") | Dynamic scene simulation device |
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