Title:
LIGHT PROJECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/003409
Kind Code:
A1
Abstract:
This light projecting device is provided with: a light emitting element that outputs laser light; a fluorescent element, to which the light outputted from the light emitting element is inputted, and which converts at least a part of the inputted light into fluorescence, and outputs the fluorescence; a first optical system, to which the light outputted from the fluorescent element is inputted; and a second optical system, to which light outputted from the first optical system is inputted, and which changes the inputted light into parallel light, and outputs the parallel light toward the outside. The divergence angle of the light to be inputted to the second optical system is larger than the divergence angle of the light to be inputted to the first optical system.
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Inventors:
MATSUOKA TOMOMI (JP)
Application Number:
PCT/JP2017/020766
Publication Date:
January 04, 2018
Filing Date:
June 05, 2017
Export Citation:
Assignee:
USHIO ELECTRIC INC (JP)
International Classes:
F21S2/00; F21V7/22; F21V11/08; G02B19/00; H01S5/02; F21Y115/30
Domestic Patent References:
| WO2015001693A1 | 2015-01-08 |
Foreign References:
| JP2015210890A | 2015-11-24 | |||
| JP2010080364A | 2010-04-08 | |||
| JP2016097339A | 2016-05-30 | |||
| JP2013246943A | 2013-12-09 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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