Title:
LIGHT SOURCE DEVICE AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2020/031750
Kind Code:
A1
Abstract:
This light source device (1) is equipped with a wavelength conversion device (10) that includes two or more wavelength conversion units (11-13) coupled in series in a first direction and that is configured such that the two or more wavelength conversion units (11-13) generate light beams that are converted to have different wavelengths, thereby generating two or more beams of converted light. Each of the two or more wavelength conversion units (11-13) has: a first and a second end surface formed in a direction parallel to the first direction; and a light incidence surface (43) which is formed in a second direction different from the first direction and onto which excitation light for generating the converted light enters. The first end surface (41) of one wavelength conversion unit (13) from among the two or more wavelength conversion units (11-13) that is positioned at one end of the wavelength conversion device (10) is configured so as to serve as a light extraction surface though which the two or more beams of converted light are extracted among the excitation light and the two or more beams of converted light.
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Inventors:
TAJIRI SHINICHIRO (JP)
KOBAYASHI IZUSHI (JP)
KOBAYASHI IZUSHI (JP)
Application Number:
PCT/JP2019/029412
Publication Date:
February 13, 2020
Filing Date:
July 26, 2019
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/14; F21S2/00; F21V7/28; F21V9/38; F21V13/12; G03B21/00; H04N9/31; F21Y115/30
Domestic Patent References:
| WO2017067781A1 | 2017-04-27 | |||
| WO2017097762A1 | 2017-06-15 | |||
| WO2016162233A1 | 2016-10-13 |
Foreign References:
| JP2012063567A | 2012-03-29 | |||
| JP2016004269A | 2016-01-12 | |||
| JP2013029622A | 2013-02-07 | |||
| JP2017535031A | 2017-11-24 | |||
| JP2008536266A | 2008-09-04 | |||
| JP2008521233A | 2008-06-19 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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