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Patent Searching and Data


Title:
LIGHT SOURCE DEVICE, PROJECTOR, AND METHOD FOR CONTROLLING LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/021002
Kind Code:
A1
Abstract:
 This light source device (100) has: a light source (101) for emitting excitation light; a first optical system (117) for causing the excitation light emitted from the light source (101) to be focused into a rectangular shape; a fluorescent wheel (109) in which a plurality of light emission units for emitting different colored light in response to being irradiated by the excitation light are formed so that each of the light emission units is irradiated by the excitation light focused by the first optical system into a rectangular shape; a second optical system (118) for focusing the colored light emitted from each of the light emission units in response to being irradiated by the rectangularly focused excitation light; and a rotating prism (111) provided in a rotatable manner on the light path of the light focused by the second optical system (118), the rotating prism (111) shifting, according to the rotation, the optical axis of the light focused by the second optical system.

Inventors:
KATO ATSUSHI (JP)
Application Number:
PCT/JP2014/070727
Publication Date:
February 11, 2016
Filing Date:
August 06, 2014
Export Citation:
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Assignee:
NEC DISPLAY SOLUTIONS LTD (JP)
International Classes:
G03B21/14; F21S2/00; F21V5/02; F21V9/16
Domestic Patent References:
WO2014064743A12014-05-01
WO2014115492A12014-07-31
Foreign References:
JP2002328332A2002-11-15
JP2005345887A2005-12-15
JP2005517366A2005-06-09
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
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