OPTICAL SYSTEM AND ARRAY SUBSTRATE DETECTING DEVICE

摘要

A optical system comprises: a light source; a first polarizer, configured to receive light emitted by the light source and convert it into first linearly polarized light; an optical prism group, configured to receive the first linearly polarized light and reflect it to a liquid crystal detecting head; the liquid crystal detecting head, configured to convert the first linearly polarized light into second linearly polarized light by using optical rotation characteristic of liquid crystal molecules, and emit the second linearly polarized light; a second polarizer, configured to receive the second linearly polarized light reflected by the liquid crystal detecting head and transmitted by the optical prism group, and convert the second linearly polarized light into third linearly polarized light; a light intensity detector, configured to receive the third linearly polarized light and calculate a light intensity thereof; wherein, the polarization directions of the first and second polarizers are opposite.

主权项

1. An optical system, comprising:
a light source; a first polarizer, configured to receive light emitted by the light source and convert the light into first linearly polarized light; an optical prism group, configured to receive the first linearly polarized light emitted by the first polarizer, and reflect the first linearly polarized light to a liquid crystal detecting head; the liquid crystal detecting head, configured to convert the incident first linearly polarized light into second linearly polarized light by using an optical rotation characteristic of liquid crystal molecules, and emit the second linearly polarized light; a second polarizer, configured to receive the second linearly polarized light reflected by the liquid crystal detecting head and transmitted by the optical prism group, and convert the second linearly polarized light into third linearly polarized light; a light intensity detector, configured to receive the third linearly polarized light and calculate a light intensity of the third linearly polarized light; wherein, the polarization directions of the first polarizer and the second polarizer are opposite.