CN209043571U - Airborne three light axis consistencies test suite and test macro - Google Patents
Airborne three light axis consistencies test suite and test macro Download PDFInfo
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- CN209043571U CN209043571U CN201821819134.6U CN201821819134U CN209043571U CN 209043571 U CN209043571 U CN 209043571U CN 201821819134 U CN201821819134 U CN 201821819134U CN 209043571 U CN209043571 U CN 209043571U
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Abstract
The utility model relates to airborne three light axis consistencies test suite and test macro, test suite includes parallel light tube, beam splitter, target target plate, ccd detector and blackbody source；Beam splitter, target target plate, ccd detector and blackbody source are located at one end of parallel light tube converging light entrance；Target target plate is located on the focal plane of parallel light tube；Blackbody source is for illuminating target target plate；The emergent light of target target plate reaches parallel light tube converging light entrance through beam splitter；The emergent light of parallel light tube converging light entrance reaches ccd detector through beam splitter.The utility model solves that existing test macro precision is limited, optics resetting difficulty is big, is not suitable for airborne problem.
Description
Technical field
The utility model belongs to optical gauge field, and in particular to a kind of airborne three light axis consistencies test suite and
Test macro.
Background technique
With security protection scout field continuous application and application environment it is increasingly sophisticated, in order to fast under round-the-clock environment
Speed timely finds target and realizes that the real-time tracking and precise measurement to target, airborne optical take aim at tool from traditional monochromatic light
Axle system is transformed into multiple small-sized sub- optical systems of today.Three light axis consistencies of optical collimator, that is, laser optical path optical axis, electricity
Depending on the collimation between three optical axises of light path light axis and infrared light path optical axis, there is important influence to the performance of whole system.
How three light axis consistencies of tool are taken aim to airborne optical to carry out high-precision real-time detection and calibrate to be problem urgently to be resolved at present.
Traditional three light axis consistency detection method of optical collimator is mostly based on laboratory environment research.Common projection target
Although plate target center scaling method has low cost, the simple advantage of test method tests affected by environment larger, test essence
Degree is subject to certain restrictions, and is unable to real-time detection and calibration.Laser axis method has self diagnostic capability, can reduce artificial
Influence of the factor to measurement, but optics resetting difficulty is big, has very strong specificity, and test macro volume is larger, it is uncomfortable
Close airborne equipped.Pentaprism method is mainly pentaprism in test moving process, and the transformation of characteristic direction can cause light
Axis deviation, to influence measurement accuracy.
Summary of the invention
In order to solve the technical problem in the presence of background technology, the utility model proposes a kind of airborne three optical axis is consistent
Property test suite and test macro.
The technical solution of the utility model is:
The airborne three light axis consistencies test suite of the utility model is characterized in that including parallel light tube 15, divides
Beam mirror 13, target target plate 12, ccd detector 14 and blackbody source 11；
One end of the parallel light tube 15 is converging light entrance, and the other end is directional light entrance；
The beam splitter 13, target target plate 12, ccd detector 14 and blackbody source 11 are located at 15 converging light of parallel light tube and go out
One end of entrance；The target target plate 12 is located on the focal plane of parallel light tube 15；The blackbody source 11 is for illuminating target
Plate 12；The emergent light of the target target plate 12 reaches 15 converging light entrance of parallel light tube through beam splitter 13；The parallel light tube
The emergent light of 15 converging light entrances reaches ccd detector 14 through beam splitter 13.
Further, the parallel light tube 15 is off-axis reflection parallel light tube.
Further, the beam splitter 13 is Amici prism.
Further, the transflection ratio of the beam splitter 13 is 8:2, and the ccd detector 14 is located at the reflection of beam splitter 13
In optical path, the target target plate 12 is located on the transmitted light path of beam splitter 13.
Further, the target target plate 12 is star tester.
Further, the focal length of the parallel light tube 15 is 1m, and the bore of the parallel light tube 15 is 50mm.
Meanwhile the utility model additionally provides a kind of airborne three light axis consistencies test macro, which includes above-mentioned
Airborne three light axis consistencies test suite and peripheral optical path；
It is described periphery optical path include plane mirror 2, the first reflecting mirror 3, the second reflecting mirror 4, the first semi-transparent semi-reflecting lens 5 and
Second semi-transparent semi-reflecting lens 6；
The plane mirror 2 is used to carry out auto-collimation to parallel light tube 15；
First semi-transparent semi-reflecting lens 5, the second reflecting mirror 4 and the first reflecting mirror 3 are successively set on the output of laser optical path
In optical path, the emergent light of laser optical path can be incident to flat through the first semi-transparent semi-reflecting lens 5, the second reflecting mirror 4 and the first reflecting mirror 3
One end of the directional light entrance of row light pipe 15；
Second semi-transparent semi-reflecting lens 6 are located on the transmitted light path of the first semi-transparent semi-reflecting lens 5, the first semi-transparent semi-reflecting lens 5
Transmitted light is incident to TV optical path and infrared light path through the second semi-transparent semi-reflecting lens 6.
Compared with prior art, beneficial effect is the utility model:
1, the airborne three light axis consistencies test suite of the utility model, by parallel light tube, beam splitter, blackbody source, target
Target plate composition, test suite when in use, by surveying with plane mirror and peripheral circuit with being combined into three light axis consistencies
The uniformity test to three optical axises may be implemented using the system in test system, which is easy to that adjustment, small in size, precision is high, solution
Existing test macro of having determined is difficult to the problem that high-precision detects and calibrates three light axis consistencies, tests for airborne three light axis consistency
Provide a kind of simple and reliable test macro, the practical value with important security protection and investigation.
2, the airborne three light axis consistencies test macro of the utility model, using off-axis reflection parallel light tube, additional two
Reflecting mirror and two semi-transparent semi-reflecting lens, can be realized the measurement of wide spectrum (visible light), laser and medium-wave infrared, while off-axis formula
Parallel light tube avoids the problem of primary mirror central obscuration ratio.
3, the airborne three light axis consistencies test macro of the utility model, the parallel light tube in test suite select heavy caliber long
The off-axis parallel light tube design of focal length, system total volume is 228mm × 77mm × 64mm, realizes airborne miniaturization light-weight design
Requirement.
4, the airborne three light axis consistencies test macro of the utility model, passes through the light of ccd detector testing laser optical path
Axis drift angle carries out coordinate calculating to laser facula offset by ccd detector image acquisition and processing technology, to realize digitlization
Detection improves system detection precision.
Detailed description of the invention
Fig. 1 is three light axis consistencies collectivity Scheme Design schematic diagram provided by the utility model；
Fig. 2 is the light path principle schematic diagram of the utility model embodiment off-axis reflection parallel light tube and beam splitter.
Wherein appended drawing reference are as follows: the airborne three light axis consistencies test macro of 1-, 11- blackbody source, 12- target target plate, 13-
Beam splitter, 14-CCD detector, 15- parallel light tube, 151- primary mirror, 152- secondary mirror, 2- plane mirror, the first reflecting mirror of 3-,
The second reflecting mirror of 4-, the first semi-transparent semi-reflecting lens of 5-, the second semi-transparent semi-reflecting lens of 6-.
Specific embodiment
It is described in detail below in conjunction with the one embodiment of attached drawing to the utility model.
As shown in Figure 1, the airborne three light axis consistencies test macro 1 of the utility model, including airborne three light axis consistency
Test suite and peripheral optical path, airborne three light axis consistencies test suite therein includes parallel light tube 15, beam splitter 13, asterism
Plate, ccd detector 14 and blackbody source 11；One end of parallel light tube 15 is converging light entrance, and the other end is directional light discrepancy
Mouthful；Beam splitter 13, target target plate 12, ccd detector 14 and blackbody source 11 are located at the one of 15 converging light entrance of parallel light tube
End；Target target plate 12 is located on the focal plane of parallel light tube 15；Blackbody source 11 is for illuminating target target plate 12；Target target plate 12
Emergent light reaches 15 converging light entrance of parallel light tube through beam splitter 13；The emergent light of 15 converging light entrance of parallel light tube is through dividing
Beam mirror 13 reaches ccd detector 14.
Ccd detector 14 is located on the reflected light path of beam splitter 13, and star tester is located on the transmitted light path of beam splitter 13, is
Ccd detector 14 is protected not broken by laser, beam splitter 13 makes few according to transmiting and reflection ratio about 8:2 ratio plated film
Fraction of laser light is reflected on ccd detector 14 and is detected.Parallel light tube 15 is off-axis reflection parallel light tube 15.Beam splitter 13
For Amici prism.The focal length of parallel light tube 15 is 1m, and the bore of parallel light tube 15 is 50mm.
Peripheral optical path includes plane mirror 2, the first reflecting mirror 3, the second reflecting mirror 4, the first semi-transparent semi-reflecting lens 5 and second
Semi-transparent semi-reflecting lens 6；Plane mirror 2 is used to carry out auto-collimation to parallel light tube 15；First semi-transparent semi-reflecting lens 5, the second reflecting mirror 4
It is successively set on the output light path of laser optical path with the first reflecting mirror 3, the emergent light of laser optical path can be through first semi-transparent half
Anti- mirror 5, the second reflecting mirror 4 and the first reflecting mirror 3 are incident to one end of the directional light entrance of parallel light tube 15；Second semi-transparent half
Anti- mirror 6 is located on the transmitted light path of the first semi-transparent semi-reflecting lens 5, and the transmitted light of the first semi-transparent semi-reflecting lens 5 is through the second semi-transparent semi-reflecting lens 6
It is incident to TV optical path and infrared light path.
Fig. 2 show the light path principle schematic diagram of off-axis reflection parallel light tube 15 and beam splitter 13, and off-axis reflection is flat
Row light pipe 15 includes primary mirror 151 and secondary mirror 152, the light issued from 15 focal point of parallel light tube, through beam splitter 13, secondary mirror 152, master
Exiting parallel after mirror 151；Based on the reversible principle of optical path, the directional light of primary mirror 151 is incident to after secondary mirror 152, beam splitter 13
Converge at focus.
Airborne three light axis consistencies test macro based on the utility model embodiment carries out three light axis consistency tests
Method, comprising the following steps:
1) datum tool
1.1) holding plane reflecting mirror 2, blackbody source 11 illuminate target before the directional light entrance of parallel light tube 15
Plate 12, emergent ray successively reaches plane mirror 2 through beam splitter 13, parallel light tube 15, after being reflected by plane mirror 2, light
Line passes sequentially through parallel light tube 15 and beam splitter 13 reaches ccd detector 14；
1.2) installation site for adjusting ccd detector 14 falls in the picture of target target plate 12 in the target surface of ccd detector 14
The heart, to complete benchmark optical axis from blackbody source 11 to the transmitting of ccd detector 14；
2) pass through the optical axis drift angle of 14 testing laser optical path of ccd detector
2.1) plane mirror 2 is removed before the entrance of 15 converging light of parallel light tube；
2.2) it is anti-to pass sequentially through the first semi-transparent semi-reflecting lens 5, second after attenuator is decayed for the light laser that laser optical path issues
Mirror 4 and the first reflecting mirror 3 are penetrated, enters parallel light tube 15 from the directional light entrance of parallel light tube 15, is assembled through parallel light tube 15
Afterwards, shoot laser reaches ccd detector 14 through beam splitter 13, is imaged；
2.3) optical axis drift angle of the laser optical path relative to ccd detector 14 is calculated according to the imaging of ccd detector 14；
3) drift angle of TV light path light axis and infrared light path optical axis is tested by blackbody source 11
3.1) blackbody source 11 illuminates target target plate 12, and emergent ray goes out after beam splitter 13 from 15 converging light of parallel light tube
Entrance enters parallel light tube 15, from 15 directional light entrance exiting parallel of parallel light tube；
3.2) emergent light of parallel light tube 15 successively passes through the first reflecting mirror 3, the second reflecting mirror 4, the first semi-transparent semi-reflecting lens 5
With the second semi-transparent semi-reflecting lens 6, the two-way light separated through the second semi-transparent semi-reflecting lens 6 is connect by TV optical path and infrared light path respectively
It receives；
3.3) TV optical path and the self-contained detector of infrared light path are carried out respectively respectively relative to blackbody source 11
Optical axis drift angle calculates.
The principles of the present invention:
Since ccd detector optical axis and blackbody source optical axis have passed through parallel light tube auto-collimation, ccd detector optical axis
It is conjugate relation with blackbody source optical axis, optical axis drift angle of the laser optical path relative to ccd detector 14 has been measured by step 2),
The optical axis drift angle of TV optical path and infrared light path relative to blackbody source 11 has been measured by step 3), has thus been aware of laser
Angled relationships between three light path light axis, TV light path light axis and infrared light path optical axis optical axises, also just complete laser optical path
The coherence measurement of optical axis, TV light path light axis and infrared light path optical axis.
Claims (7)
1. airborne three light axis consistencies test suite, it is characterised in that: including parallel light tube (15), beam splitter (13), target
Plate (12), ccd detector (14) and blackbody source (11)；
One end of the parallel light tube (15) is converging light entrance, and the other end is directional light entrance；
The beam splitter (13), target target plate (12), ccd detector (14) and blackbody source (11) are located at parallel light tube (15) meeting
One end of optically focused entrance；The target target plate (12) is located on the focal plane of parallel light tube (15)；The blackbody source (11) is used
In illuminating target target plate (12)；The emergent light of the target target plate (12) reaches parallel light tube (15) converging light through beam splitter (13)
Entrance；The emergent light of parallel light tube (15) the converging light entrance reaches ccd detector (14) through beam splitter (13).
2. airborne three light axis consistencies test suite according to claim 1, it is characterised in that:
The parallel light tube (15) is off-axis reflection parallel light tube.
3. airborne three light axis consistencies test suite according to claim 2, it is characterised in that:
The beam splitter (13) is Amici prism.
4. airborne three light axis consistencies test suite according to any one of claims 1 to 3, it is characterised in that:
The transflection ratio of the beam splitter (13) is 8:2, and the ccd detector (14) is located on the reflected light path of beam splitter (13),
The target target plate (12) is located on the transmitted light path of beam splitter (13).
5. airborne three light axis consistencies test suite according to claim 4, it is characterised in that:
The target target plate (12) is star tester.
6. airborne three light axis consistencies test suite according to claim 5, it is characterised in that:
The focal length of the parallel light tube (15) is 1m, and the bore of the parallel light tube (15) is 50mm.
7. airborne three light axis consistencies test macro, it is characterised in that: including airborne three light axis consistencies test suite and periphery
Optical path；
The airborne three light axis consistencies test suite such as claim 1 to 6 is any described；
The periphery optical path includes plane mirror (2), the first reflecting mirror (3), the second reflecting mirror (4), the first semi-transparent semi-reflecting lens
(5) and the second semi-transparent semi-reflecting lens (6)；
The plane mirror (2) is used to carry out auto-collimation to parallel light tube (15)；
First semi-transparent semi-reflecting lens (5), the second reflecting mirror (4) and the first reflecting mirror (3) are successively set on the defeated of laser optical path
Out in optical path, the emergent light of laser optical path can be through the first semi-transparent semi-reflecting lens (5), the second reflecting mirror (4) and the first reflecting mirror (3)
It is incident to one end of the directional light entrance of parallel light tube (15)；
Second semi-transparent semi-reflecting lens (6) are located on the transmitted light path of the first semi-transparent semi-reflecting lens (5), the first semi-transparent semi-reflecting lens (5)
Transmitted light be incident to TV optical path and infrared light path through the second semi-transparent semi-reflecting lens (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821819134.6U CN209043571U (en) | 2018-11-06 | 2018-11-06 | Airborne three light axis consistencies test suite and test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821819134.6U CN209043571U (en) | 2018-11-06 | 2018-11-06 | Airborne three light axis consistencies test suite and test macro |
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| Publication Number | Publication Date |
|---|---|
| CN209043571U true CN209043571U (en) | 2019-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821819134.6U Withdrawn - After Issue CN209043571U (en) | 2018-11-06 | 2018-11-06 | Airborne three light axis consistencies test suite and test macro |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580177A (en) * | 2018-11-06 | 2019-04-05 | 中国科学院西安光学精密机械研究所 | Airborne three light axis consistencies test suite, system and test method |
| CN110672304A (en) * | 2019-08-16 | 2020-01-10 | 中国科学院西安光学精密机械研究所 | System and method for testing relay light path performance of laser communication terminal and calibration method |
| CN111006855A (en) * | 2019-12-30 | 2020-04-14 | 长光卫星技术有限公司 | Method and device for calibrating optical axis of large-caliber off-axis reflective vacuum parallel light tube |
-
2018
- 2018-11-06 CN CN201821819134.6U patent/CN209043571U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580177A (en) * | 2018-11-06 | 2019-04-05 | 中国科学院西安光学精密机械研究所 | Airborne three light axis consistencies test suite, system and test method |
| CN109580177B (en) * | 2018-11-06 | 2023-09-29 | 中国科学院西安光学精密机械研究所 | Airborne three-optical axis consistency testing assembly, system and testing method |
| CN110672304A (en) * | 2019-08-16 | 2020-01-10 | 中国科学院西安光学精密机械研究所 | System and method for testing relay light path performance of laser communication terminal and calibration method |
| CN111006855A (en) * | 2019-12-30 | 2020-04-14 | 长光卫星技术有限公司 | Method and device for calibrating optical axis of large-caliber off-axis reflective vacuum parallel light tube |
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