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:
Aug. 12, 2025
Filed:
Jan. 27, 2022
Seiko Epson Corporation, Tokyo, JP;
Tetsuya Yamamoto, Suwa, JP;
Takefumi Fukagawa, Fujimi-machi, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A detecting device includes: a first light-emitting section configured to emit first light having a green wavelength band; a second light-emitting section configured to emit second light having a wavelength band longer than the green wavelength band; a first light-receiving section configured to receive the first light emitted from the first light-emitting section and passed through a living body; and a second light-receiving section configured to receive the second light emitted from the second light-emitting section and passed through the living body. In the direction intersecting the direction in which the first light-emitting section and the second light-emitting section are aligned, in the second direction, at least a portion of the first light-receiving section is disposed closer to the first light-emitting section than the second light-receiving section. An area of the first light-receiving section is smaller than an area of the second light-receiving section.