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.:

US 8289630 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 16, 2012

Filed:

Jan. 07, 2010
Applicant:

Takayoshi Togino, Koganci, JP;

Inventor:

Takayoshi Togino, Koganci, JP;

Assignee:

Olympus Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical element that is made of a transparent medium Lrotationally symmetric relative to the central axiswith a refractive index greater than 1, wherein the transparent medium Lhas a first transmissive surface, a first reflective surface, a second reflective surfacearranged at an opposite side to the image planerelative to the first reflective surfaceand a second transmissive surfacearranged at the image planeside relative to the second reflective surfaceand that the flux of light entering the transparent medium Lgoes into it by way of the first transmissive surfaceso as to be reflected to the opposite side to the image planeby the first reflective surfaceand then to the image planeside by the second reflective surfaceto form an optical path before going out from the transparent medium Lat the image planeside by way of the second transmissive surfacein the order of forward ray tracing.


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