Patent ID: 11972596
Assignee: CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 4:
5. The method of claim 1, wherein:
the visible light imaging unit I comprises a visible light filter, a liquid crystal phase retarder I, a liquid crystal phase retarder II, and a visible camera,
the visible light filter, the liquid crystal phase retarder I, the liquid crystal phase retarder II, and the visible camera are arranged on the same optical axis and are connected in series, and
visible light intensity imaging and visible light polarization imaging are completed on the visible light imaging unit I after light sequentially passes through the visible light filter, the liquid crystal phase retarder I, the liquid crystal phase retarder II, and the visible camera.