Title:
PHOSPHOR WHEEL AND FLUORESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/228836
Kind Code:
A1
Abstract:
This transmissive-type phosphor wheel (1B) comprises: a phosphor substrate (10B) which is an annular substrate composed of a phosphor material; a metal member (20B) which holds the phosphor substrate (10B); and a rotary part which rotates the phosphor substrate (10B) and the metal member (20B) about an axis extending in the thickness direction of the phosphor substrate (10B). When the phosphor substrate (10B) is viewed in a plan view, the phosphor substrate (10B) has an annular region which does not overlap the metal member (20B), and the metal member (20B) is composed of: a first heat dissipation member (23B) disposed on the main surface side of the phosphor substrate (10B); and a second heat dissipation member (24B) disposed on the side opposite the main surface of the phosphor substrate (10B). The first heat dissipation member (23B) and the second heat dissipation member (24B) sandwich and hold the phosphor substrate (10B), and a plurality of heat dissipation fins (202) are provided to one among the first heat dissipation member (23B) and the second heat dissipation member (24B).
Inventors:
ASAYAMA KAITO
HONDA YOSUKE
NAKASHIMA NORIYASU
IIZAWA NOBORU
HONDA YOSUKE
NAKASHIMA NORIYASU
IIZAWA NOBORU
Application Number:
PCT/JP2023/018423
Publication Date:
November 30, 2023
Filing Date:
May 17, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F21V29/502; F21S2/00; F21V3/02; F21V3/08; F21V29/75; F21V29/77; G02B5/20; G03B21/00; G03B21/14; G03B21/16; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2021020056A1 | 2021-02-04 | |||
| WO2018159536A1 | 2018-09-07 |
Foreign References:
| JP2016170326A | 2016-09-23 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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