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. 21, 2026
Filed:
Jun. 12, 2025
Denso Corporation, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Mirise Technologies Corporation, Nisshin, JP;
Hiroshi Ando, Nisshin, JP;
Masaaki Kawauchi, Nisshin, JP;
Kojiro Tachi, Nisshin, JP;
Masatoshi Tsuji, Nisshin, JP;
Heng Liu, Nisshin, JP;
Ryusuke Ohta, Toyota, JP;
DENSO CORPORATION, Kariya-city, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
MIRISE Technologies Corporation, Nisshin, JP;
Abstract
An optical device includes a light guide and a holding member to constitute a light guide unit having a corner and a corner extended outer surface. The corner extended outer surface includes a curved surface that has a radius of curvature of a predetermined standard value or more. A louver is arranged such that an imaginary spherical shape is spaced apart from prisms of the light guide in a state where the imaginary spherical shape is closest to the prisms while being in contact with the louver and the corner extended outer surface without intersecting with blades of the louver.