Telescope long-wave infrared imaging system suitable for target observing and temperature measuring in earth shadow area

Abstract

The invention provides a telescope long-wave infrared imaging system suitable for target observing and temperature measuring in an earth shadow area, and belongs to the technical field of telescope infrared imaging detection. The telescope long-wave infrared imaging system aims to resolve the problem that an existing foundation telescope can not obtain real temperature characteristics of a target. The telescope long-wave infrared imaging system comprises a telescope and a multi-band long-wave infrared imaging terminal system, wherein the multi-band long-wave infrared imaging terminal system comprises an infrared vacuum low-temperature dewar, and a switching reflector, a low-temperature black body, a relay reflector set, a color selective mirror, a very-long-wave infrared detector filter wheel, a very-long-wave infrared detector, a long-wave infrared detector filter wheel and a long-wave infrared detector are calibrated in the infrared vacuum low-temperature dewar and arranged on a cold platform. Light emitted from the telescope enters the relay reflector set, the light is reflected to the color selective mirror through the relay reflector set, the light transmitted through the color selective mirror is received by the very-long-wave infrared detector after penetrating through the very-long-wave infrared detector filter wheel, and the light is received by the long-wave infrared detector after penetrating through the long-wave infrared detector filter wheel.

Description

technical field [0001] The invention relates to a telescope long-wave infrared imaging system, especially suitable for observation and temperature measurement of targets in the shadow area of ​​the earth, and belongs to the technical field of ground-based telescope infrared imaging detection. Background technique [0002] Because the target in the shadow area is not exposed to sunlight, the temperature is generally low, and the peak radiation wavelength is concentrated near the long-wave infrared. The infrared temperature measurement accuracy of ground-based telescopes for targets in the shadow area is affected by the estimation of uncertain parameters such as atmospheric transmittance, target emissivity, and earth thermal radiation. Existing telescope infrared single-band imaging temperature measurement can only obtain the equivalent radiation temperature of the target, and the colorimetric temperature measurement accuracy of infrared dual-band imaging temperature measureme...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the accuracy of infrared temperature measurement is affected by parameters such as atmospheric transmittance, target emissivity, and earth thermal radiation when observing targets in the shadow area, resulting in the fact that the existing ground-based telescopes do not have the function of obtaining the real temperature characteristics of the target, the present invention provides a An Infrared Imaging System Especially Suitable for Object Observation and Temperature Measurement in Earth Shadow Area

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