公开(公告)号：US20230204416A1

公开(公告)日：2023-06-29

申请号：US17993145

申请日：2022-11-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITURE

Inventor： Won Bae CHO ,  Seung Hwan KIM ,  Jeong Won PARK ,  Chul HUH

IPC: G01J3/02

CPC classification number: G01J3/0232 ,  G01J3/0208

Abstract: Disclosed herein a spectral device with enhanced stability of optical sensor and an operating method of the device. According to an embodiment of the present disclosure, there is provided a spectral device including: a light splitter configured to split an incident light into a reference light and a signal light; at least one beam shutter configured to perform control for selectively outputting at least one of the reference light and the signal light and for blocking the two signals together; and a controller configured to provide an absorption property of a bio-material by comparatively quantizing an intensity of the reference light and an intensity of the signal light, which are received into a sensor through the beam shutter.