Poly-lens profound hypothermia infrared detector pipe casing structure packaged in Dewar

An infrared detector, deep and low temperature technology, which is applied to the tube-shell package in the infrared detection dewar, and the multi-lens deep-low temperature infrared detector tube-shell structure field, which can solve the problems of huge subsequent optical structure and complexity, and achieve the internal temperature field. Uniform, reduce mechanical load, ensure the effect of position

Active Publication Date: 2013-02-13
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The purpose of this patent is to provide a multi-lens cryogenic infrared detector shell structure packaged in a Dewar to solve the problem that the interferometric deep cry...

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  • Poly-lens profound hypothermia infrared detector pipe casing structure packaged in Dewar
  • Poly-lens profound hypothermia infrared detector pipe casing structure packaged in Dewar
  • Poly-lens profound hypothermia infrared detector pipe casing structure packaged in Dewar

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Embodiment Construction

[0067] The specific embodiment of the present invention will be described in further detail below in conjunction with accompanying drawing in embodiment:

[0068] This embodiment is a 15 μm very long-wave multi-lens deep-low temperature infrared detector Dewar inner shell structure, as attached figure 1 As shown, its main implementation method is as follows:

[0069] 1) After the parts are processed, check whether the parts meet the design requirements according to the drawing size requirements. Measure the lens support shell from the bottom surface (reference surface) to the step 404, that is, the height D1 of the mounting surface of the lower lens 5, and then measure the bottom surface (reference surface) to the step 405, that is, the upper lens, by a Z-axis measuring microscope and a three-coordinate measuring instrument 7 Height D2 of the mounting surface.

[0070] 2) Gem electrode plates are formed by interlacing and superimposing two layers of 0.4 mm thick, the diamete...

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Abstract

The invention discloses a poly-lens profound hypothermia infrared detector pipe casing structure packaged in a Dewar. The poly-lens profound hypothermia infrared detector pipe casing structure is applicable to the packaging technology of a profound hypothermia pipe casing arranged in an infrared focal plane detector Dewar and provided with a plurality of cold optical elements. The poly-lens profound hypothermia infrared detector pipe casing structure comprises a detector chip, an electrode lead wire circuit substrate, a plurality of lenses, an optical filter, a supporting pipe casing, a press ring type cold shield, a chip, a lead wire silicon-aluminum wire and the like. The poly-lens profound hypothermia infrared detector pipe casing structure achieves poly-lens profound hypothermia pipe casing high-accuracy packaging through special measures and structural modes such as laser positioning drilling, the nested press ring type cold shield, the special alloy integrated supporting pipe casing and lateral surface fine tuning aligning, can effectively meet hypothermia infrared optical accuracy requirements, reduce the background in a chip view field, stray light and heat radiation of the whole Dewar and effectively remove low temperature deformation stress of the ceramic sintered pipe casing on the detector chip, and is applicable to other radiation cooling, thermoelectric refrigerating and the like.

Description

technical field [0001] The invention relates to a tube shell packaging technology in an infrared detection Dewar, in particular to a tube shell structure of a multi-lens deep-low temperature infrared detector packaged in a Dewar. It belongs to the technical field of infrared detector packaging. Background technique [0002] The infrared detector is packaged to form an infrared component, and its purpose is to ensure that the infrared detector can work normally. Infrared detector components are widely used in the aerospace infrared field. With the extension of wavelength to long wavelength and the improvement of detection sensitivity, mercury cadmium telluride infrared detector must work at low temperature. Due to the advantages of mechanical refrigeration, such as compact structure, small size, light weight, large cooling capacity, short cooling time, and large controllable range of cooling temperature, most of these detectors currently use mechanical cooling in space appl...

Claims

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Application Information

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IPC IPC(8): G01J5/02G01J5/04
Inventor 曾智江杨力怡郝振贻沈一璋王小坤莫德锋龚海梅
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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