Title:
LIGHT SOURCE DEVICE AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/181858
Kind Code:
A1
Abstract:
Provided is a light source device (21) generating blue laser beams (L1), red light-source beams (L2), and green fluorescent beams (FL). A reflective liquid crystal element (23) is irradiated with the blue laser beams (L1), the red light-source beams (L2), and the green fluorescent beams (FL), thereby emitting, as reflected light, video light (L4) corresponding to an image. An irregular surface structure having an array of irregularities is formed on a side, of a light-emitted board (35) of the light source device (21), on which excitation light beams (EL) are incident, and an incidence angle of the excitation light beams (EL) is set to be equal to or less than 20° with respect to a direction of a normal line of a phosphor layer.
Inventors:
KOBAYASHI DAISUKE (JP)
Application Number:
PCT/JP2016/063363
Publication Date:
November 17, 2016
Filing Date:
April 28, 2016
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G03B21/14; F21S2/00; F21V9/16; G03B21/00
Domestic Patent References:
| WO2014103093A1 | 2014-07-03 |
Foreign References:
| JP2014153527A | 2014-08-25 | |||
| JP2012003923A | 2012-01-05 | |||
| JP2012027052A | 2012-02-09 | |||
| JP2012108486A | 2012-06-07 | |||
| JP2012247625A | 2012-12-13 | |||
| JP2012009242A | 2012-01-12 |
Attorney, Agent or Firm:
FUKUDA, MITSUHIRO (JP)
Mitsuhiro Fukuda (JP)
Mitsuhiro Fukuda (JP)
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