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:
Jun. 16, 2026
Filed:
Jun. 21, 2022
Hamamatsu Photonics K.k., Hamamatsu, JP;
Takashi Kasahara, Hamamatsu, JP;
Katsumi Shibayama, Hamamatsu, JP;
Hiroki Oyama, Hamamatsu, JP;
Yumi Kuramoto, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A light detection system includes a Fabry-Perot interference filter including a first mirror and a second mirror, a distance therebetween being variable, a light detection unit configured to detect light in a wavelength range of λ1 or more and λ2 or less, and a control unit configured to apply a voltage to the Fabry-Perot interference filter such that the distance changes in a distance range of d1 or more and d2 or less. For a transmission spectrum T1 (λ) of light in a case where the distance is d1, a peak transmittance T1 (λa) appears within the wavelength range, and a transmittance T1 (λ2) is less than or equal to 1%. For a transmission spectrum T2 (λ) of light in a case where the distance is d2, a peak transmittance T2 (λb) appears within the wavelength range, and a transmittance T2 (λ1) is less than or equal to 1%.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile