Title:
ILLUMINATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/187207
Kind Code:
A1
Abstract:
An illuminating device according to an embodiment of the present disclosure is provided with: a light source portion; a temperature adjusting portion having one surface; a first wavelength converting layer which is disposed on said one surface side of the temperature adjusting portion, and which absorbs light emitted from the light source portion as exciting light and emits light in a first wavelength band; and a second wavelength converting layer which is disposed between the temperature adjusting portion and the first wavelength converting layer, absorbs at least one of the light emitted from the light source portion and the light in the first wavelength band as exciting light and emits light in a second wavelength band different from the wavelength band of the light in the first wavelength band, and which has a temperature sensitivity higher than that of the first wavelength converting layer.
Inventors:
MAEDA YUKI (JP)
Application Number:
PCT/JP2021/009092
Publication Date:
September 23, 2021
Filing Date:
March 08, 2021
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
F21V29/15; F21V7/30; F21V9/32; F21V9/38; F21V29/502; F21V29/54
Domestic Patent References:
| WO2019230935A1 | 2019-12-05 | |||
| WO2017056470A1 | 2017-04-06 |
Foreign References:
| JP2013093268A | 2013-05-16 | |||
| JP2011134619A | 2011-07-07 | |||
| JP2016145936A | 2016-08-12 | |||
| JP2013026161A | 2013-02-04 | |||
| JP2014519710A | 2014-08-14 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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