Title:
OPTICAL ELEMENT, LIGHT SOURCE DEVICE, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2021/149392
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: an optical element that can increase the color gamut of images and improve the brightness of images; a light source device comprising said optical element; and a projector comprising said light source device. Provided are: an optical element that comprises a first color conversion layer, a second color conversion layer, and a heat-insulating layer, the heat-insulating layer being disposed between the first color conversion layer and the second color conversion layer; a light source device comprising said optical element; and a projector comprising said light source device.
Inventors:
MAEDA YUKI (JP)
Application Number:
PCT/JP2020/046202
Publication Date:
July 29, 2021
Filing Date:
December 11, 2020
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
G03B21/14; F21S2/00; F21V29/15
Domestic Patent References:
| WO2011013188A1 | 2011-02-03 |
Foreign References:
| JP2019174528A | 2019-10-10 | |||
| JP2019175570A | 2019-10-10 | |||
| JP2012027052A | 2012-02-09 |
Other References:
See also references of EP 4086701A4
Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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