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:
Sep. 15, 2026
Filed:
Mar. 24, 2023
Nissan Motor Co., Ltd., Yokohama, JP;
Ryota Maehashi, Kanagawa, JP;
Yoshimi Ohta, Kanagawa, JP;
Fuminori Satou, Kanagawa, JP;
Maki Shimada, Kanagawa, JP;
Shunta Nabetani, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An optical component has an optical functional layer with variable light transmittance disposed between multiple light guide plates. The optical functional layer has a main surface provided with a light-receiving section that receives a control light that causes the light transmittance of the optical functional layer to change, and an end surface provided with a light leakage prevention section that reflects the control light. The light-receiving section includes a transmission type diffraction grating. A non-transmissive section that absorbs or reflects the control light is provided between the light guide plates in a path of a zero-order light of the control light transmitted through the transmission type diffraction grating. With this structure, an optical component and a light control device can be provided in which deterioration of the non-transmissive section is prevented and the control light is not visible from either the control light irradiation side or the opposite side.