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Patent Searching and Data


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)
Application Number:
PCT/JP2019/026754
Publication Date:
February 20, 2020
Filing Date:
July 05, 2019
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
G03B21/14; F21S2/00; F21V7/22; G03B21/00; F21Y115/30
Domestic Patent References:
WO2015056381A12015-04-23
WO2017069954A12017-04-27
Foreign References:
JP2005079580A2005-03-24
JP2011520292A2011-07-14
JP2017139354A2017-08-10
JP2018013662A2018-01-25
JP2017138471A2017-08-10
JP2016103423A2016-06-02
JP2016045302A2016-04-04
JP2009099891A2009-05-07
JP2018085252A2018-05-31
JP2015230866A2015-12-21
JP2010140745A2010-06-24
JP6536724B12019-07-03
JP2019035922A2019-03-07
JP2019078947A2019-05-23
JP2019032471A2019-02-28
Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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