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:
Jul. 24, 1990
Filed:
Jul. 12, 1988
Applicant:
Inventor:
Seizo Miyata, Hoya-shi, Tokyo, JP;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JP;
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; H03F / ; H04N / ;
U.S. Cl.
CPC ...
350354 ; 358199 ; 358231 ; 307425 ;
Abstract
A display system includes a display medium which comprises a display layer providing a display area capable of converting coherent light into light of a shorter wavelength through a nonlinear optical effect and converting the coherent light into scattered light. The display area is illuminated imagewise with coherent light such as a scanning laser beam to form a display image with scattered light having a wavelength different from that of the coherent light at the illuminated part of the display area.