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. 21, 1992
Filed:
May. 08, 1991
Applicant:
Inventors:
Naoki Kamaya, Tokyo, JP;
Seizi Sato, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
351158 ; 351 44 ;
Abstract
An eyesight auxiliary device having within a main body of the device is described, a spot light source, transparent liquid cyrstal panels illuminated by the spot light source and convex lenses substantially integrally arranged with the liquid crystal panels. The main body of the device is fitted to a user's head, the image of the liquid crystal panels is directly projected onto the retina of the user's eyeballs through the spot light source. Further, a small-sized camera for capturing the image of the liquid crystal panels is arranged at a position corresponding to the height positions of the eyeballs.