Hyperspectral high spatial resolution integral view field spectral imaging system used for underwater detection

Abstract

The invention relates to a hyperspectral high spatial resolution integral view field spectral imaging system used for underwater detection, and solves the problems that the view field acquired by theconventional micro-lens array spectral imaging method is small, high spatial resolution under large view field cannot be realized and only narrow view field detection under the condition of accurate wavelength selection can be realized. The imaging system comprises a sealed box, a front telescope system, a beam splitter, a first imaging lens group, a grayscale detector, a first collimating lens group, a micro-lens array unit, a second imaging lens group, a diffraction grating and a spectrum detector. The light through the front telescope system enters the beam splitter, wherein one path of light maintains the original incident direction to transmit and one path of light spreads in the direction perpendicular to the incident direction. The first imaging lens group collects the target lightperpendicular to the incident direction and forms an image to the grayscale detector. The first collimating lens group, the micro-lens array unit, the second imaging lens group, the diffraction grating and the spectrum detector are arranged in turn. The first collimating lens group collimates the light transmitting along the incident direction.

Description

technical field [0001] The invention relates to the field of spectral imaging, in particular to a hyperspectral and high spatial resolution integral field of view spectral imaging system for underwater detection. Background technique [0002] Spectral imaging technology is a comprehensive detection technology of "integration of spectrum and image". It can obtain target image information and target spectral information. It has the ability to reveal camouflaged targets and can realize accurate detection and identification of targets in battlefield environments. Known as a leap in the history of optical instrument development, it has far surpassed traditional panchromatic optical cameras (which can only acquire target outlines and grayscale features). This technology has been widely used in environmental monitoring, precision agriculture, mineral surveys, etc., but Only a few countries have carried out the application and research of this technology in the detection of underwat...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the field of view obtained by the traditional microlens array spectral imaging method is small, and cannot achieve high spatial resolution under a large field of v

Images