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Patent Searching and Data


Title:
LIGHT-EMITTING DEVICE, WAVELENGTH CONVERSION UNIT, AND HEADLIGHT OR DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/060519
Kind Code:
A1
Abstract:
Provided is a light-emitting device (1) comprising: a light-emitting element (20); a plate-shaped light-transmissive heat dissipation member (11); a wavelength conversion member (12) that takes in, from a light scattering layer (12a) side, light which is emitted from the light-emitting element (20) and passes through the light-transmissive heat dissipation member (11), and that converts the wavelength thereof at a phosphor layer (12b); a plate-shaped lateral heat dissipation member that includes a high heat conduction member (13) in contact via a light reflection member (14) with a side surface of the wavelength conversion member (12) and that is in contact with an upper surface of the light-transmissive heat dissipation member (11); and a package (21) that accommodates the light-emitting element (20) and supports a wavelength conversion unit (100) which includes the light-transmissive heat dissipation member (11), the wavelength conversion member (12), and the lateral heat dissipation member.

Inventors:
WADA SATOSHI (JP)
HAYASHI KENTO (JP)
KAWAMURA YUHKI (JP)
MURAYAMA MASAHIRO (JP)
MOTOBAYASHI HISAYOSHI (JP)
TAKIGUCHI YOSHIRO (JP)
KAWANISHI HIDEKAZU (JP)
YANASHIMA KATSUNORI (JP)
Application Number:
PCT/JP2020/036411
Publication Date:
April 01, 2021
Filing Date:
September 25, 2020
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
G02B7/00; F21S41/16; F21S41/176; F21S43/13; F21S43/16; F21S45/10; F21S45/47; F21V29/502; G02B5/20; H01L33/00; H01L33/50; H01L33/64; H01S5/02; H01S5/024; F21W102/00; F21W103/00; F21Y115/00; F21Y115/30
Foreign References:
JP2015207646A2015-11-19
JP2016219723A2016-12-22
JP2015149394A2015-08-20
JP2004212522A2004-07-29
JP2018002912A2018-01-11
US20190121133A12019-04-25
JP2017033971A2017-02-09
JP2019134017A2019-08-08
JP2019160859A2019-09-19
US20170031118A12017-02-02
JP2017216362A2017-12-07
JP2018002912A2018-01-11
Other References:
See also references of EP 4036624A4
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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