公开(公告)号：US20230266169A1

公开(公告)日：2023-08-24

申请号：US18110882

申请日：2023-02-16

Applicant: OTO PHOTONICS INC.

Inventor： HAO-PING WU ,  CHIEN-HSIANG HUNG ,  KUEI-WU CHANG

IPC: G01J3/28 ,  G02B27/10 ,  G01J3/02

CPC classification number: G01J3/2823 ,  G02B27/1013 ,  G01J3/0208

Abstract: A spectrometer includes a base, a light input element, a light splitting element, an image sensor and a shading element. The light input element is disposed on the base for receiving an optical signal. The light splitting element is disposed on the base to split the received optical signal into a plurality of spectral components. The image sensor is disposed on the base, and has a sensing surface for receiving the plurality of spectral components. The sensing surface has a virtual central line extending along an arrangement direction of the plurality of spectral components. The shading element is disposed between the light splitting element and the image sensor according to an optical influence factor, and is located on a projection path of a portion of the plurality of spectral components. A shadow generated by the shading element on the sensing surface does not fall on the virtual central line.