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. 14, 2025
Filed:
Jan. 28, 2021
Novelbeam Technology Inc., San Jose, CA (US);
Rongzhuang Mao, Shandong, CN;
Changming Gu, Shandong, CN;
Mingzhi Li, Shandong, CN;
James Zheng, Fremont, CA (US);
Anmin Zheng, Fremont, CA (US);
Daniel Cifelli, Fremont, CA (US);
Novelbeam Technology Inc., San Jose, CA (US);
Abstract
A device for maintaining an optical path of an optical imaging system free of fog includes an elongated member having a distal end and a proximal end, a near-infrared (NIR) light-absorbing optical window disposed at the distal end, and an optical system disposed along the optical path. The device also includes a coupling module coupled to the elongated member at the proximal end and configured to transmit near-infrared light to the NIR light-absorbing optical window along the optical path and receive a light beam from an area of interest along the optical path.