Low-light-level image intensifier with high resolution and high gain multiple

Abstract

The invention discloses a high-resolution and high-gain-multiple low-light image intensifier, relates to the field of low-light detection, and solves the problem that an existing image intensifier cannot give consideration to high resolution and high gain at the same time. The image intensifier mainly comprises a low-light input window, an input photocathode, a single-layer micro-channel plate, atleast one stage of high-resolution optical amplifier, an output photocathode, an output optical fiber bundle, a vacuum sealing cavity and a power supply module. Based on the single-layer micro-channel plate and the multi-stage amplification technology, the gain multiple of the double-layer MCP low-light-level image intensifier can be provided, the resolution of the single-layer MCP low-light-level image intensifier can be maintained, and high-gain-multiple and high-resolution detection of a large area array can be achieved at the same time. The image intensifier has important application value in the fields of plasma imaging, combustion and hydromechanics optical diagnosis, biological and medical images, astronomical observation, remote sensing and telemetering, criminal investigation, military investigation and the like.

Description

technical field [0001] The invention belongs to the field of low-light detection, and relates to a low-light image intensifier, in particular to an image intensifier for high-resolution and high-gain multiplier amplification of low-light signals, which can provide double-layer MCP low-light image intensifiers The gain multiple can maintain the resolution of the single-layer MCP low-light image intensifier, and can simultaneously realize the high gain multiple and high-resolution detection of the large area array, which can be widely used in plasma imaging, combustion and fluid mechanics optical diagnosis, biological And medical imaging, astronomical observation, remote sensing telemetry, criminal investigation, military investigation and other fields. Background technique [0002] Twilight refers to light at which the light energy is too low to elicit a response from the human eye or image sensor. Low-light amplification technology refers to the process of photoelectric con...

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, in order to solve the problem that the existing low-light image intensifier cannot take into account both high resolution and high gain, the present invention provides a low-light image intensifier with high resolution and high gain multiples, Based on the single-layer MCP and multi-stage amplification technology, it can not only provide the gain multiple of the double-layer MCP low-light image intensifier, but also maintain the resolution of the single-layer MCP low-light image intensifier, and can simultaneously realize the high gain multiple of the large area array and high-resolution detection

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