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Device and method for testing out-band relative spectral responsivity of solar blind ultraviolet image intensifier

A technology like intensifier and spectral response, applied in testing optical performance and other directions, can solve the problems of low out-of-band response, inability to accurately characterize solar-blind UV ICCD spectral response characteristics, inability to accurately test out-of-band relative spectral responsivity, etc. The effect of increasing the dynamic range

Inactive Publication Date: 2014-08-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the relative spectral response characteristics of solar-blind ultraviolet ICCD cannot be accurately characterized and the out-of-band relative spectral responsivity cannot be accurately tested due to its extremely low out-of-band response, the invention provides a solar-blind ultraviolet image intensifier out-of-band Relative spectral responsivity test device and method

Method used

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  • Device and method for testing out-band relative spectral responsivity of solar blind ultraviolet image intensifier
  • Device and method for testing out-band relative spectral responsivity of solar blind ultraviolet image intensifier

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specific Embodiment approach 1

[0017] Specific implementation mode 1. Combination figure 1 and figure 2 To illustrate this embodiment, the solar-blind ultraviolet image intensifier out-of-band relative spectral responsivity testing device includes:

[0018] The light source 1 is a series of high-stable mW-level laser diodes, which are placed horizontally along the same height in order of wavelength; the dark box 2 is located in front of the light source 1, and a light entrance is provided on the side, which can avoid the test from being affected by ambient stray light; The retractable shielding cover 3 is located between the light entrance and the light source 1, and is used to shield the ambient stray light near the light source 1 from entering the dark box; the trap detector 4 is located inside the dark box 2, and is used to detect The output photocurrent of the light source 1; the shielding box 6, located inside the dark box 2, is used to hold the image intensifier to be measured, and effectively elect...

specific Embodiment approach 2

[0021] Specific embodiment two, combine image 3 Describe this embodiment, this embodiment is the testing method of the out-of-band relative spectral responsivity testing device of the sun-blind ultraviolet image intensifier described in the specific embodiment one, comprising the following steps:

[0022] 1. The dark current noise is tested by the trap detector 4 and zero-adjusted for compensation. This step is specifically as follows: close the light entrance of the dark box 2 so that no light enters on the trap detector 4, measure the output electrical signal of the trap detector 4 as dark current noise, and convert the trap detector at this time 4. Zeroing to compensate the dark current noise; detecting the output photocurrent of the light source 1 by the trap detector 4. This step specifically includes: adjusting the guide rail 8 of the dark box so that the light source 1 is aligned with the light entrance of the dark box 2 , and adjusting the precision displacement plat...

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Abstract

The invention discloses a device and method for testing the out-band relative spectral responsivity of a solar blind ultraviolet image intensifier, and relates to the technical field of parameter testing of the solar blind ultraviolet image intensifier. The problem that the relative spectral responsivity of a solar blind ultraviolet image intensifier cannot be accurately tested due to the extremely low out-band response is solved. The device comprises a light source, a dark box, a telescopic shielding case, a trap detector, a shielding box and an electrometer. The dark box is placed in front of the light source, and a light inlet is formed in the side face of the dark box. The telescopic shielding case is placed between the light inlet and the light source and is used for shielding the environment stray light nearby the light source from entering the dark box. The trap detector is placed inside the dark box and is used for detecting the output light currents of the light source. The shielding box is placed inside the dark box and is used for containing the image intensifier to be tested and for conducting effective electromagnetic shielding on the image intensifier to be tested. The electrometer is connected with the signal output end of the image intensifier and is used for detecting output electric signals passing through the image intensifier to be tested of the light source. The device for testing the out-band relative spectral responsivity of the solar blind ultraviolet image intensifier is simple in structure and high in operability.

Description

technical field [0001] The invention relates to the technical field of parameter testing of solar-blind ultraviolet image intensifiers, in particular to a testing device and method for out-of-band relative spectral responsivity of solar-blind ultraviolet image intensifiers. Background technique [0002] The development of solar-blind ultraviolet ICCD is one of the key core technologies for solar-blind ultraviolet imaging detection. Its out-of-band relative spectral responsivity refers to the response ability to incident radiation in the near ultraviolet, visible and near infrared spectrum. In order to reflect the response ability of solar-blind ultraviolet ICCD to out-of-band radiation, it is of great significance to accurately test the relative spectral responsivity of out-of-band to achieve optimal spectral matching with the filter and improve the signal-to-noise ratio of the system. At present, the research on photoelectric parameter testing of visible light detectors and...

Claims

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Application Information

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IPC IPC(8): G01M11/02
Inventor 闫丰章明朝周跃陈雪崔穆涵
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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