The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2024
Filed:
May. 25, 2022
Visera Technologies Company Ltd., Hsin-Chu, TW;
Wen-Yu Shih, Hsin-Chu, TW;
Hsin-Yi Hsieh, Hsin-Chu, TW;
Lai-Hung Lai, Hsin-Chu, TW;
Po-Han Fu, Hsin-Chu, TW;
Chin-Chuan Hsieh, Hsin-Chu, TW;
VisEra Technologies Company Ltd., Hsin-Chu, TW;
Abstract
A spectrometer includes a plurality of photodetectors, an anti-reflection layer, a grating layer, a distant layer, and a collimator. The anti-reflection layer is disposed on the plurality of photodetectors. The grating layer is disposed above the anti-reflection layer and includes a plurality of grating structures to spread a light into a spectrum to the plurality of photodetectors through the distant layer. The distant layer continuously extends from the grating layer to the anti-reflection layer, the distant layer has a thickness in a range from 400 μm to 2000 μm, and a refractive index of the grating layer is greater than a refractive index of the distant layer. The collimator is disposed above the grating layer, in which the collimator is configured to confine an incident angle of the light from a first micro-lens.