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. 13, 2021
Filed:
Feb. 08, 2019
Ricoh Company, Ltd., Tokyo, JP;
Yuuki Satoh, Kanagawa, JP;
Kazuhiro Fujita, Tokyo, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A display device and an apparatus. The display device includes light emitter to emit light, an image generator to generate image light using the light emitted from the light emitter, a diffusion plate configured to diffuse the image light, and a light condensing element to receive and condense the image light diffused by the diffusion plate. A component in an optical path between the light emitter and the diffusion plate is disposed at a position different from a position of a light condensing portion of external light having transmitted through the diffusion plate via the light condensing element. The apparatus includes a light emitter to emit light, an image generator to generate image light using the light emitted from the light emitter, a diffusion plate to diffuse the image light, and a concave mirror to reflect the image light diffused by the diffusion plate to a transmission reflection member.