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. 27, 2013
Filed:
Aug. 27, 2009
Yoshie Shimizu, Ibaraki, JP;
Yoshie Shimizu, Ibaraki, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
Light outputted from a laser light source () of an image generating section () is two-dimensionally deflected and permitted to perform scanning by means of a reflecting surface () of a deflecting device (), diffused by means of a diffusion unit (), and then diffracted and reflected by an HOE () of an eyepiece optical system (), and guided to an optical pupil (E). Deterioration of qualities of an observing image can be eliminated by setting the optical pupil (E) and the reflecting surface () of the deflecting device () to have an optically conjugated positional relationship. Furthermore, since a prescribed conditional equation is satisfied and the diffusion unit () has positive power, even when the optical pupil (E) and reflecting surface () of the deflecting device () are set to have the conjugated positional relationship, the distance between the reflecting surface () and the diffusion unit () can be short, and the image generation section () can be prevented from being large in size.