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Patent Searching and Data


Title:
HOLOGRAPHIC IMAGE REPRODUCTION MECHANISM USING ULTRAVIOLET LIGHT
Document Type and Number:
WIPO Patent Application WO/2013/136358
Kind Code:
A1
Abstract:
A holographic image display system comprises a screen, a first and a second light source, a scanning mechanism, and a controller. The screen includes a photochromic material arranged thereon. The photochromic material has light absorption characteristics which change depending on illumination with a wavelength of an ultraviolet light beam. The first light source directs a visible light beam with a sufficiently large diameter onto the screen, whereas the second light source directs an ultraviolet light beam onto the screen through the scanning mechanism. The controller controls emissions and scanning of the ultraviolet light beam based on a holographic signal so that the ultraviolet light beam can be scanned across the screen.

Inventors:
YAMAICHI EIJI (JP)
Application Number:
PCT/JP2012/001703
Publication Date:
September 19, 2013
Filing Date:
March 12, 2012
Export Citation:
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Assignee:
EMPIRE TECHNOLOGY DEV LLC (US)
YAMAICHI EIJI (JP)
International Classes:
G03H1/22; G03H1/02; G03H1/04
Foreign References:
JPH0715751A1995-01-17
US20070211319A12007-09-13
JP2011243817A2011-12-01
JPH09327040A1997-12-16
JPH05165392A1993-07-02
JPH01219783A1989-09-01
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (23rd Floor Roppongi Hills Mori Tower, 6-10-1, Roppongi, Minato-k, Tokyo 23, JP)
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