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Title:
PROJECTIVE LASER IMAGE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH0767064
Kind Code:
A
Abstract:

PURPOSE: To provide a projective laser image display device which makes high- output image display possible while miniaturizing a projector.

CONSTITUTION: Laser light sources 1a, 2a and 3a for emitting laser beams in green are used for light sources 1, 2 and 3 and further, wavelength converters 1b and 3b excited by the laser beams of green so as to generate high-output red laser beams or ultraviolet laser beams are also used for the light sources 1 and 3. Thus, visible laser beams L1 and L2 in red and green are outputted from the light sources 1, 2 and 3, invisible ultraviolet laser beams L3 are outputted respectively, and images of red and green are displayed on a screen 11a coating the screen, which is irradiated with the laser beams L1, L2 and L3 of a screen 11 paired with the projector, with a phosphor excited by ultraviolet rays and emitted in blue and by irradiating the screen 11a with the laser beams L1 and L2. Then, the image in blue is displayed on the screen 11a by exciting the phosphor by irradiating the screen with the laser beam L3.


Inventors:
Tamada, Sakuya
Yamamoto, Masanobu
Miyaoka, Chisato
Application Number:
JP1993000235572
Publication Date:
March 10, 1995
Filing Date:
August 27, 1993
Export Citation:
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Assignee:
SONY CORP
International Classes:
G02B26/10; G09G3/02; H04N5/74; H04N9/31; (IPC1-7): H04N5/74; G02B26/10; G09G3/02; H04N9/31
Attorney, Agent or Firm:
高橋 光男



 
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