Title:
LIGHT SOURCE DEVICE AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2021/205658
Kind Code:
A1
Abstract:
The present invention provides a light source device capable of suppressing an increase in light flux diameter. This light source device comprises: a first laser light source unit (1) that emits a plurality of first laser light beam fluxes (1a) in the same direction in a state of being spatially separated from each other; a second laser light source unit (2) that emits at least one second laser light beam flux (2a) in a direction crossing the plurality of first laser light beam fluxes (1a); and a reflective member (3) that is provided in a space not blocking the respective first laser light beam fluxes (1a) within a light path (4) including the plurality of first laser light beam fluxes (1a), and reflects the second laser light beam flux (2a) emitted by the second laser light source unit (2) in the same direction as the emission direction of the first laser light beam fluxes (1a).
Inventors:
HIRAHARA SOTA (JP)
Application Number:
PCT/JP2020/016155
Publication Date:
October 14, 2021
Filing Date:
April 10, 2020
Export Citation:
Assignee:
SHARP NEC DISPLAY SOLUTIONS LTD (JP)
International Classes:
G03B21/14
Foreign References:
| JP2005084633A | 2005-03-31 | |||
| JP2017215570A | 2017-12-07 | |||
| US20160077416A1 | 2016-03-17 |
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
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