Title:
LIGHT SOURCE DEVICE AND PROJECTION TYPE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/036013
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve the homogeneity of laser light created by a light source device including a multi-emitter laser light source. The present invention provides a light source device comprising: a laser light group that includes at least one multi-emitter laser light source (111R-1, etc.) and at least one non-multi-emitter laser light source (111B-1, etc.) that emits color light different from the multi-emitter laser light source; a collimator lens (112R-1, etc.) that has at least one cylindrical surface and adjusts the laser light emitted from the at least one multi-emitter laser light source (111R-1, etc.); and lightguides (113, 114, etc.) that combines the colors of the laser light that exited from the at least one multi-emitter laser light source (111R-1, etc.) and passed through the cylindrical surface and the laser light that exited from the at least one non-multi-emitter laser light source (111B-1, etc.).
Inventors:
NARITA YOSUKE (JP)
OKANO HIDEAKI (JP)
OKANO HIDEAKI (JP)
Application Number:
PCT/JP2019/026754
Publication Date:
February 20, 2020
Filing Date:
July 05, 2019
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G03B21/14; F21S2/00; F21V7/22; G03B21/00; F21Y115/30
Domestic Patent References:
WO2015056381A1 | 2015-04-23 | |||
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Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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