Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/077757
Kind Code:
A1
Abstract:
This light-emitting device comprises: a plurality of light source units, each having a laser light source emitting an excitation light; and a phosphor unit receiving the excitation light to emit a fluorescent light. Among the plurality of light source units, at least two light source units are configured in such a manner that: when an excitation light is irradiated from each onto a light irradiation surface of the phosphor unit, the excitation lights overlap with one another on the light irradiation surface; and, the long shaped lights projected with the light irradiation surface from the excitation lights projected onto the light irradiation surface, are parallel or almost parallel to one another in the length direction.
Inventors:
NAGAMORI MOTOI
HATAZAWA KENJI
TAKAHASHI KOJI
KAWAGUCHI YOSHINOBU
HATAZAWA KENJI
TAKAHASHI KOJI
KAWAGUCHI YOSHINOBU
Application Number:
PCT/JP2016/073609
Publication Date:
May 11, 2017
Filing Date:
August 10, 2016
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
F21S2/00; F21S8/10; F21S8/12; F21V7/22; F21V9/16; F21V19/00; H01S5/0239; F21W101/10
Domestic Patent References:
| WO2015019724A1 | 2015-02-12 |
Foreign References:
| JP2012185939A | 2012-09-27 | |||
| EP2930801A1 | 2015-10-14 |
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
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