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. 29, 2016
Filed:
Feb. 14, 2014
Nippon Seiki Co., Ltd., Niigata, JP;
NIPPON SEIKI CO., LTD., Niigata, JP;
Abstract
Provided is a head-up display device capable of projecting a virtual image on a curved surface. a curved parallel mirror receives parallel beams from a collimator lens and outputs a plurality of transmitted beams by being configured such that a semi-transparent curved mirror and a curved mirror are arranged opposing each other, said semi-transparent curved mirror reflecting a portion of the parallel beams while allowing the other portion to pass through as transmitted beams, and said curved mirror reflecting parallel beams toward the semi-transparent curved mirror. The curved parallel mirror has a convex curved shape toward the transmission side such that when the outputted plurality of transmitted beams are reflected by a curved surface, the reflected transmitted beams become display beams representing a virtual image substantially parallel to a first plane.