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:
Aug. 10, 2022
The University of Tokyo, Tokyo, JP;
Hamamatsu Photonics K.k., Hamamatsu, JP;
Hiroki Miyano, Tokyo, JP;
Go Soma, Tokyo, JP;
Taichiro Fukui, Tokyo, JP;
Takuo Tanemura, Tokyo, JP;
Yoshiro Nomoto, Hamamatsu, JP;
The University of Tokyo, Tokyo, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
A light modulator includes a base layer, a metal reflective layer formed on the base layer, a modulation layer of a nonlinear optical crystal formed on the reflective layer, and a conductive pattern layer including a plurality of pattern portions arranged periodically in a first direction and each extending in a second direction, and formed on the modulation layer. The modulation layer changes a reflectance for object light by changing a refractive index when a voltage is applied between the reflective layer and the conductive pattern layer. The light modulator outputs the object light being incident from an upper surface side of the modulation layer, transmitted through the modulation layer, and reflected by the reflective layer to the outside as modulated light with an intensity modulated by the reflectance change.