Multiband dynamic target simulation device based on DMD spatial light modulation technology

Abstract

The invention relates to the technical field of optical metering and detection, in particular to a multi-band dynamic target simulation device based on a DMD spatial light modulation technology, which comprises a light source system, an integrating sphere system, a light path collimation system, a DMD micromirror array, a lens assembly, a multi-band camera and a display and control cabinet. The integrating sphere system is opposite to the light source system; the light path collimation system is arranged between the integrating sphere system and the DMD micromirror array; the lens assembly is arranged between the DMD micromirror array and the multiband camera; and the display and control cabinet is respectively connected with the light source system, the DMD micromirror array and the multiband camera. According to the multi-band dynamic target simulation device based on the DMD spatial light modulation technology, visible light and near-infrared multi-band dynamic targets are simulated by adopting the DMD spatial light modulation technology, the limitation of the existing simulation technology on imaging target characteristics and wavebands can be solved, multi-band dynamic target simulation with high frame frequency and any shape and pattern is realized, and the simulation efficiency is improved. And visible light and near-infrared light are covered.

Description

technical field [0001] The invention relates to the technical field of optical metrology and detection, in particular to a multi-band dynamic target simulation device based on DMD spatial light modulation technology. Background technique [0002] When calibrating the photoelectric ship landing guidance equipment, it is necessary to use the simulated target to test the performance of the photoelectric ship landing guidance equipment. For target simulation, the current commonly used device design is to place the target plate with the target feature pattern on the focal plane of the optical system, and the target plate forms parallel light output through the refraction or reflection of the lens group in the optical system, thereby simulating the static state at infinity. Target. However, the traditional collimator simulation imaging method has limitations on the characteristics of the imaging target, and it is difficult to meet the requirements covering multiple bands such as ...

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