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:
Apr. 12, 2022
Filed:
Nov. 23, 2020
National Cheng Kung University, Tainan, TW;
Yu-Lung Lo, Tainan, TW;
Chieh-Chen Tsai, Taichung, TW;
National Cheng Kung University, Tainan, TW;
Abstract
A system for sensing concentration is provided. A light source emits at least a light ray which passes through a first polarization state changing module and is directed to a biological tissue to generate a response light ray. The response light ray is received by a sensor after passing through a second polarization state changing module. A calculation circuit calculates a Muller matrix corresponding to the biological tissue according to the response light ray, and calculates a depolarization index of the biological tissue according to the Muller matrix, and calculates an optical path length according to the depolarization index, and calculates the concentration of matter of the biological tissue according to the optical path length.