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:
Jan. 14, 1997
Filed:
Feb. 01, 1995
Applicant:
Inventors:
Hideki Yamamoto, Tokyo, JP;
Naruhiko Atsuchi, Tokyo, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
349-5 ; 349117 ;
Abstract
A dichroic mirror is formed on a surface of a prism except an incident surface for reflecting an entered ray having a predetermined wavelength. An optical thin film is formed on the incident surface as to totally reflect the ray reflected from the dichroic mirror. The optical thin film has a phase control function.