Spectrum configurable visible and terahertz multispectral composite detection imaging device

Abstract

The invention discloses a spectrum configurable visible and terahertz multispectral composite detection imaging device which is based on an optical filtering technique and an aperture partitioning technique, an area array light filter, an area array lens and an area array detector are combined, a visible multispectral imaging channel and a terahertz multispectral imaging channel are designed in ashared aperture manner, and in combination with a reflector with a scanning function, a Cassegrain telescope with an adjustable object distance, and a filter packet with a configurable channel, multispectral composite detection imaging of targets in different distances is achieved, and the device is applicable to fields such as deep space exploration and aerial remote sensing.

Description

technical field [0001] The spectral imaging device involved in the present invention is a multi-spectral compound detection imaging device that covers visible and terahertz bands and can be configured according to the application. Based on optical filtering technology and aperture segmentation technology, the invention combines area array filters, area array lenses and area array detectors, adopts the common aperture design of visible multi-spectral imaging channel and terahertz multi-spectral imaging channel, and has scanning function The reflector, the Cassegrain telescope with adjustable object distance and the filter package with configurable channels can realize multi-spectral compound detection and imaging of targets at different distances, and are suitable for deep space exploration, aerial remote sensing and other fields. Background technique [0002] The imaging spectrometer not only collects high-resolution spatial information of ground objects, but also has the ab...

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Problems solved by technology

[0005] The shortcomings of the above-mentioned prior art are mainly reflected in the following two aspects: 1. For the visible spectrometer in the field of aerial remote sensing, it can realize hyperspectral imaging in the visible band, but it is limited by the response band of the detector and the working band of the grating. It cannot work in a longer band range; 2. For the visible Fourier spectrometer used in laboratory scientific research and analysis, it is limited by the acquisition time of spectral lines, defects in moving parts and data redundancy, which restricts its application in the fields of aerial remote sensing and deep space exploration. Applications

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