公开(公告)号：US20210080386A1

公开(公告)日：2021-03-18

申请号：US16891580

申请日：2020-06-03

Applicant: YI-SHENG TING

Inventor： YI-SHENG TING ,  YU-TSUNG CHEN ,  PO-SUNG CHEN

IPC: G01N21/31 ,  H01L25/13 ,  H01L33/50 ,  G01N21/359

Abstract: A light emitting apparatus has a plurality of light emitting units, and each of them emits a light with a light emission peak wavelength and a wavelength range. The wavelength ranges of the two light emitting units with the two adjacent light emission peak wavelengths are partially overlapped or non-overlapped. Each of the light emitting units discontinuously emits a light with a lighting frequency. The present disclosure further provides the spectrometer, a light emitting method and a spectrum detection method, and all of them utilizes the light emitting apparatus, a background noise is discarded and a frequency domain signal of an optical spectrum signal of a tested object is reserved, so as to have a filtering effect and achieve high test accuracy, which can replace conventional spectrometer for wavelength resolution characteristics.