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1. (WO2018038491) OPTICAL WAVEGUIDE USING PARABOLIC REFLECTOR AND INFRARED GAS SENSOR HAVING SAME

Pub. No.:    WO/2018/038491    International Application No.:    PCT/KR2017/009104
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Aug 22 01:59:59 CEST 2017
IPC: G01N 21/3504
G02B 5/08
G02B 5/126
Applicants: TRUEYES INC.
(주)트루아이즈
Inventors: PARK, Jeong Ik
박정익
Title: OPTICAL WAVEGUIDE USING PARABOLIC REFLECTOR AND INFRARED GAS SENSOR HAVING SAME
Abstract:
The present invention relates to an optical waveguide having a long optical path length by geometrically arranging a reflector and having a high optical efficiency, comprising a first parabolic reflector including a first reflective surface, a second parabolic reflector including a second reflective surface, a third parabolic reflector including a third reflective surface, and at least one planar reflector positioned between the first parabolic reflector and the second parabolic reflector. The first parabolic reflector, the planar reflector, and the second parabolic reflector are disposed so that the first reflective surface, the reflective surface of the planar reflector, and the second reflective surface are opposed to the third reflective surface.