Title:
PROJECTION TYPE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH05236405
Kind Code:
A
Abstract:
PURPOSE: To effectively prevent the non-uniformity of colors on a screen without lowering light emitting luminance.
CONSTITUTION: A convex reflector 2 to reflect beams radiated from a light source lamp 1 to an optical system 5 is provided with a first reflecting plane 3 to selectively reflect the green and blue components of beams from the light source lamp 1 to the optical system 5 and a second reflecting plane 4 to selectively reflect the red component to the optical system 5 and to relatively converge this reflected light against the reflected light of green and blue components.
Inventors:
AMANO RYUHEI
YAMAUCHI KENJI
KANAYAMA HIDEYUKI
YAMAUCHI KENJI
KANAYAMA HIDEYUKI
Application Number:
JP18978491A
Publication Date:
September 10, 1993
Filing Date:
July 30, 1991
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
G02B5/10; G02F1/1335; G03B21/14; G03B33/12; H04N5/74; (IPC1-7): H04N5/74; G02B5/10; G02F1/1335; G03B21/14; G03B33/12
Attorney, Agent or Firm:
Toshiyuki Maruyama (1 outside)