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Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/173085
Kind Code:
A1
Abstract:
A lighting device (100) which comprises: a light source unit (200) that has an excitation light emitting end (210); and a wavelength conversion unit (300). The lighting device (100) is characterized in that the wavelength conversion unit (300) is configured of: an incidence part (304) which is connected to the excitation light emitting end (210) and on which excitation light emitted from the light source unit (200) is incident; a wavelength conversion member (302) that converts the excitation light incident on the incidence part (304) to desired wavelength-converted light; a light-transmitting member (308) that has a function of transmitting the excitation light and the wavelength-converted light; a reflective part (316) that has a function of reflecting at least some of the wavelength-converted light from the wavelength conversion member (302); and an emission part (306) that emits at least some of the wavelength-converted light reflected by the reflective part (316) to the outside. The lighting device (100) is also characterized in that at least a part of the light-transmitting member (308) from the incidence part (304) to the emission part (306) is continuously formed, and the reflective part (316) is provided on a part of the outer surface of the light-transmitting member (308).

Inventors:
KAMEE HIROYUKI (JP)
ITO TAKESHI (JP)
SEKI HIROYUKI (JP)
NAKAYA NORIO (JP)
Application Number:
PCT/JP2012/064900
Publication Date:
December 20, 2012
Filing Date:
June 11, 2012
Export Citation:
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Assignee:
OLYMPUS CORP (JP)
KAMEE HIROYUKI (JP)
ITO TAKESHI (JP)
SEKI HIROYUKI (JP)
NAKAYA NORIO (JP)
International Classes:
F21S2/00; F21V8/00; F21Y101/02
Domestic Patent References:
WO2006038502A12006-04-13
Foreign References:
JP2011066069A2011-03-31
JP2011129374A2011-06-30
JP2011253015A2011-12-15
JP2012074241A2012-04-12
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
Masatoshi Kurata (JP)
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Claims: