Title:
LIGHT SOURCE DEVICE AND PROJECTION-TYPE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/250668
Kind Code:
A1
Abstract:
A light source device in one embodiment of the present disclosure comprises: a support substrate having a phosphor layer on one surface; a driving unit for rotationally driving the support substrate; a first support member disposed so as to be opposed to the other surface of the support substrate on the side opposite to the one surface; a plurality of first heat radiation members which are provided on the other surface of the support substrate in a concentric manner and of which heat radiation performance is different depending on a distance to the phosphor layer; and a plurality of second heat radiation members which are provided on a surface of the first support members opposed to the support substrate in a concentric manner and disposed alternatingly with the plurality of first heat radiation members.
Inventors:
NISHI SHOTA (JP)
TAKASAWA TAKEHARU (JP)
ISHIGE MASAHIRO (JP)
TAKASAWA TAKEHARU (JP)
ISHIGE MASAHIRO (JP)
Application Number:
PCT/JP2020/020763
Publication Date:
December 17, 2020
Filing Date:
May 26, 2020
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/00; F21S2/00; F21V7/26; F21V7/28; F21V9/35; F21V29/502; F21V29/74; G03B21/14; G03B21/16; H04N5/74; F21Y115/30
Domestic Patent References:
| WO2018116689A1 | 2018-06-28 |
Foreign References:
| JP2016528743A | 2016-09-15 | |||
| JP2009123721A | 2009-06-04 | |||
| JP2018004668A | 2018-01-11 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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