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:
Feb. 17, 2026
Filed:
Jul. 03, 2024
Pixart Imaging Inc., Hsin-Chu, TW;
Cheng-Lin Yang, Hsin-Chu, TW;
Zhi-Hao Wu, Hsin-Chu, TW;
Yen-Chang Chu, Hsin-Chu, TW;
Hung-Yu Lai, Hsin-Chu, TW;
Chih-Ming Sun, Hsin-Chu, TW;
PixArt Imaging Inc., Hsin-Chu, TW;
Abstract
A smoke detection device includes a circuit board, an illumination light source, an optical detector and a smoke collector. The illumination light source is disposed on the circuit board and adapted to emit an illumination beam. The optical detector is disposed adjacent to the illumination light source and adapted to receive the illumination beam. The smoke collector is disposed on the circuit board to cover the illumination light source and the optical detector. The smoke collector includes a shelter, a lateral portion and a base portion. The base portion includes a plurality of protruding structures and a plurality of sunken structures alternately disposed adjacent to each other. Each of the plurality of protruding structures and a corresponding sunken structure are adapted to reflect a part of the illumination beam away from the optical detector and keeping a specific part of the illumination beam being received by the optical detector.