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:
Feb. 12, 1991
Filed:
Jan. 24, 1990
Applicant:
Inventor:
Hong C Park, Seoul, KR;
Assignee:
Goldstar Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
350129 ;
Abstract
A front projection screen includes front and rear refractive facets. The rear refractive facets are coated with refractive coating layers for reflecting an image light which has penetrated through the front refractive facets toward the front refractive facets. Upper and lower flanks are disposed at both upper and lower side surfaces of the rear refractive facets. Penetrative coating layers are formed on the lower flanks. A light-absorbing member is disposed between the penetrative coating layers and the upper flanks so as to absorb the illumination light (noise light).