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:
Aug. 08, 2017
Filed:
Apr. 26, 2016
Olympus Corporation, Tokyo, JP;
Ryohei Sugihara, Tokyo, JP;
Shinya Takahashi, Tokyo, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
A light guide prism for guiding image light from a display device to an observer's eye and displaying a virtual image of the display device in the observer's field of view includes at least four sides disposed to surround an optical path of image light incident from one end, a reflecting surface configured to reflect the image light guided by the at least four sides, and an emission surface configured to emit the image light reflected at the reflecting surface towards the observer's eye. At least one groove in a V-shape is formed on each of the at least four sides. As a result, a light guide prism that reduces stray light and ghost light occurring due to reflection at inner surfaces and an image display apparatus using this light guide prism can be provided.