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:
Dec. 30, 2025
Filed:
Apr. 21, 2023
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
Provided is a gas detection device that is compact and can perform accurate measurement. The gas detection device includes a light-emitting section (), a light-receiving section (), and a light-guiding section () that guides light from the light-emitting section () to the light-receiving section (). The light-guiding section () includes a mirror () and has a shape of part of at least one spheroid. The mirror () is provided at a position of or in proximity to a first focal point of the spheroid. The light-emitting section () and the light-receiving section () are each provided at a position of or in proximity to a focal point of the spheroid that is not the first focal point. The light-emitting section () and the light-receiving section () are arranged in parallel to a major axis direction of the spheroid.