Title:
OPTICAL DEVICE, LIGHT SOURCE APPARATUS, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2020/085164
Kind Code:
A1
Abstract:
This optical device comprises an emission layer structure 20 configured from a first emission layer 21 and a second emission layer 22, and a wavelength selection means 30. The wavelength selection means 30 is disposed on one side of the emission layer structure 20, the first emission layer 21 emits light 511 having a first wavelength region, the second emission layer 22 emits light having a second wavelength region 512 on the basis of the light emitted by the first emission layer 21, the wavelength selection means 30 passes parts 511-1, 511-2 of the light 511 having the first wavelength region from the emission layer structure 20 therethrough, returns the remainder 511-3 to the emission layer structure 20, and passes the light having the second wavelength region 512 therethrough.
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Inventors:
MAEDA YUKI (JP)
Application Number:
PCT/JP2019/040638
Publication Date:
April 30, 2020
Filing Date:
October 16, 2019
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/14; F21S2/00; G03B21/00; H04N5/74; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2017203782A1 | 2017-11-30 |
Foreign References:
| JP2011070088A | 2011-04-07 | |||
| US20090034284A1 | 2009-02-05 | |||
| JP2017138347A | 2017-08-10 | |||
| JP2018189951A | 2018-11-29 |
Attorney, Agent or Firm:
YAMAMOTO Takahisa et al. (JP)
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