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:
Nov. 30, 2021
Filed:
Jan. 10, 2018
Mitsubishi Electric Corporation, Tokyo, JP;
Kohei Sakai, Tokyo, JP;
Yukari Takada, Tokyo, JP;
Fumio Shohda, Tokyo, JP;
Kenichi Hirosawa, Tokyo, JP;
Shumpei Kameyama, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
In a plane perpendicular to the optical axis () of a lens (), the direction in which the cylindrical surface has zero curvature is the direction of generatrix of the lens (), and the direction in which the cylindrical surface has non-zero curvature and that is orthogonal to the direction of generatrix is the direction of curvature of the lens (). A light source () is disposed at the focal position () in the direction of generatrix on the side of the incident surface () of the lens (), and emits light toward the incident surface () of the lens (), the light having a difference between the divergence angle in the direction of generatrix of the lens () and the divergence angle in the direction of curvature of the lens ().