Field-of-view beam splitter of wide-width imaging spectrograph

Abstract

The invention discloses a field-of-view beam splitter of a wide-width imaging spectrograph, belonging to the field of onboard and spaceborne optical remote sensing, the field-of-view beam splitter of the wide-width imaging spectrograph comprises a spectroscope lock block, spectroscope lock block fixing screw, a base, a spectroscope, a base aperture, a slit plate and a base fixing screw, wherein the slit plate is provided with a first slit, a second slit and a third slit, and the amount of the slits on the slit plate is set as required; the spectroscope is stuck and installed in the cavity of the base in an unstressed mode; the spectroscope lock block presses a reflector on the tail end of the base; the spectroscope lock block is fixedly connected with the base by the pectroscope lock block fixing screw; and the slit plate is stuck on the front end with the base aperture of the base in an unstressed mode. Under the condition that a large-size two-dimensional matrix array detector is hard to obtain, high-resolution and wide-width spectrum imaging remote sensing of the imaging spectrograph can be realized through field-of-view separation and splicing.

Description

technical field [0001] The invention discloses a field of view beam splitter suitable for wide-width imaging spectrometers (including multispectral, hyperspectral and hyperspectral), and belongs to a field of view beam splitter involved in the technical field of airborne and spaceborne space optical remote sensing device. Background technique [0002] Imaging spectrometer is to simultaneously obtain continuous ground object spectral images with high spectral resolution in a specific spectral domain, so that remote sensing data can be expanded in the spectral dimension to obtain high-precision spectral remote sensing data, and then quantitatively analyze the biological, physical, and chemical processes and parameters of the earth's surface , is an organic combination of imaging technology and spectroscopy technology. Imaging spectral remote sensing originated from the identification of geological minerals, and gradually expanded to the research of vegetation ecology, ocean a...

AI Technical Summary

Problems solved by technology

This field of view beam splitter can only realize the separation of the field of view of PAN, VNIR and SWIR along the track direction, and cannot increase the width in the track-crossing direction, so it cannot meet the current needs of large-scale wide remote sensing

Images