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Imaging performance test system for Geiger-mode 3D laser imaging focal plane array detector

A focal plane array and three-dimensional laser technology, applied in the field of photoelectric detection, to achieve the effects of guaranteed accuracy, low cost and low power

Active Publication Date: 2019-05-03
SOUTH WEST INST OF TECHN PHYSICS
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AI Technical Summary

Problems solved by technology

[0004] The invention proposes a Geiger mode three-dimensional laser imaging focal plane array detector imaging performance testing system to solve the technical problem of how to test the detector easily

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  • Imaging performance test system for Geiger-mode 3D laser imaging focal plane array detector
  • Imaging performance test system for Geiger-mode 3D laser imaging focal plane array detector

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Embodiment Construction

[0018] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] This embodiment proposes a Geiger mode three-dimensional laser imaging focal plane array detector imaging performance testing system, its structure is as follows figure 1 shown. The system consists of a control cabinet 1, an optical platform 2, an optical lens group 3, a fixed bracket for the detector to be tested 4, a fixed bracket for the optical lens group 5, a long-distance slide rail group 6, an obscura 7, a long-distance slide rail group mid-section bracket 8, and a misalignment mark. Target 9 and electric slide 10 etc. composition.

[0020] In this embodiment, the test system uses two optical platforms 2, which are connected together through a long-distance slide rail group 6 composed of two parallel slid...

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Abstract

The invention relates to an imaging performance test system for a Geiger-mode 3D laser imaging focal plane array detector, and belongs to the technical field of photoelectric detection. The system uses a narrow pulse semiconductor laser as a light source, and compared with a large-power solid state laser used for outfield imaging test, the narrow pulse semiconductor laser is small in size, low inpower and cost and capable of adjusting the output optical power, and is an ideal laser source which realizes extremely weak light irradiation of a target. A camera obscura is used to isolate stray light in the environment outside a casing, so that the accuracy of single-photon imaging detection is ensured; laser output delay of the narrow pulse semiconductor laser as well as the distance betweenthe detector and a target is adjusted to simulate imaging detection of a long-distance target indoor; and the distance between two offset targets is adjusted, so that extreme distance / resolution imaging detection of the detector can be realized. The imaging performance of the Geiger-mode 3D laser imaging focal plane array detector can be tested indoor rather than in the outfield.

Description

technical field [0001] The invention belongs to the technical field of photoelectric detection, and in particular relates to a Geiger mode three-dimensional laser imaging focal plane array detector imaging performance testing system. Background technique [0002] Geiger-mode 3D laser imaging focal plane array detector refers to a Geiger APD optoelectronic device that can realize non-scanning laser 3D imaging. It has extremely high photon detection efficiency, spatial and distance resolution, and can realize single-photon imaging detection, which can be used for situational awareness, collision avoidance, adaptive cruise control, surveillance, restricted area event warning, target recognition, day and night rain and fog imaging, aviation take-off and landing, lunar and planetary hazard avoidance lifting, automatic rendezvous and docking space, aerial refueling, terrain mapping, autonomous navigation, intelligent intersection monitoring, unmanned ground vehicles, unmanned aeri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/497G01S17/89
Inventor 孔繁林柯尊贵周小燕钱煜袁鎏郝昕邓世杰梁晨宇袁菲黄海华路小龙
Owner SOUTH WEST INST OF TECHN PHYSICS
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