Title:
PHOSPHOR WHEEL AND LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/228993
Kind Code:
A1
Abstract:
A transmissive phosphor wheel (1B) comprising a phosphor substrate (10B) formed from a phosphor material, a metal member (20B) which is disposed by being joined to the main surface of the phosphor substrate (10B) and which is provided with a plurality of first heat dissipation fins (202) protruding in the direction opposite to the main surface, and a rotation unit (30B) that rotates the phosphor substrate (10B) and the metal member (20B) about the axis extending in the thickness direction of the phosphor substrate (10B), wherein in a plan view of the phosphor substrate (10B), the phosphor substrate (10B) has an annular region (A11) having an annular shape without an overlap with the metal member (20B) and wherein in a plan view of the metal member (20B), an opening (206) is provided in each region between the plurality of first heat dissipation fins (202) of the metal member (20B).
Inventors:
IIZAWA NOBORU
HONDA YOSUKE
NAKASHIMA NORIYASU
TAKAHIRA YOSHIYUKI
MURAGAKI YOSHIHIRO
ASAYAMA KAITO
HONDA YOSUKE
NAKASHIMA NORIYASU
TAKAHIRA YOSHIYUKI
MURAGAKI YOSHIHIRO
ASAYAMA KAITO
Application Number:
PCT/JP2023/019432
Publication Date:
November 30, 2023
Filing Date:
May 25, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F21V29/502; F21S2/00; F21V3/02; F21V3/08; F21V29/77; G02B5/20; G03B21/00; G03B21/14; G03B21/16; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2018159536A1 | 2018-09-07 | |||
| WO2021020056A1 | 2021-02-04 |
Foreign References:
| JP2019061235A | 2019-04-18 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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