Title:
PROJECTION SCREEN
Document Type and Number:
Japanese Patent JPS5358235
Kind Code:
A
Abstract:
PURPOSE: To project an image of high brightness and uniform brilliancy and enable the image to be seen in every direction by foring a plane screen consisting of a reflecting plane of Fresnel type having a serrated section and a light absorbing plane.
Inventors:
SUKEGAWA TADASHI
Application Number:
JP13336376A
Publication Date:
May 26, 1978
Filing Date:
November 06, 1976
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G03B21/60; G03B21/56; H04N5/74; (IPC1-7): G03B21/56