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:
Jun. 27, 2006
Filed:
Sep. 18, 2003
Kenji Nishi, Yokohama-shi, Kanagawa 235-0022, JP;
Kenji Nishi, Yokohama-shi, Kanagawa 235-0022, JP;
Other;
Abstract
An intermediate image of an image from the LCD moduleis deflected by reflection mirrors Mand Mvia zoom automatic focus control system (g) and then is formed on diffusion glassvia relay lens (b) and reflection mirrors Mand M. The LCD image is projected on the retina of eyeballs via eyepiece lensby the light flux diffused at an order of ±20 degrees by diffusion glass. One side of the eyepiece lensclose to the crystal ballshas an aspherical shape of a Conic surface and a Conic coefficient of the Conic surface is −1 and less. Thereby the optical system that has a viewing angle of 60 degrees and over and has a small aberration can be obtained.