Title:
WAVELENGTH CONTROL OPTICAL MEMBER, LIGHT-EMITTING DEVICE AND LIGHTING FIXTURE
Document Type and Number:
Japanese Patent JP2017138534
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a wavelength control optical member capable of obtaining an illumination light source which has high color rendering property and high efficiency, and to provide a light-emitting device and lighting fixture using the same.SOLUTION: A wavelength control optical member (10) has a matrix resin and a green fluorescent dye having a maximum absorption wavelength in a range of 420 nm to 480 nm and a maximum emission wavelength in a range of 500 nm to 540 nm; has a red fluorescent dye having a maximum absorption wavelength in at least one of a region of 420 nm to 480 nm and a region of 550 nm to 600 nm and a maximum emission wavelength in a region of 600 nm to 630 nm; and has a light absorption dye having a maximum absorption wavelength in a range of 550 nm to 600 nm. A light-emitting device has a light-emitting element, a wavelength conversion member which converts a wavelength of light emitted from the light-emitting element, and a wavelength control optical member. Lighting fixture has the light-emission device.SELECTED DRAWING: Figure 1
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Inventors:
FUJII SHUNPEI
Application Number:
JP2016020614A
Publication Date:
August 10, 2017
Filing Date:
February 05, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
G02B5/20; F21S6/00; F21V9/16; F21V9/40; G02F1/13357; H01L33/50
Domestic Patent References:
| JP2015173275A | 2015-10-01 | |||
| JP2002151262A | 2002-05-24 | |||
| JP2015211150A | 2015-11-24 | |||
| JP2015005650A | 2015-01-08 | |||
| JP2014136771A | 2014-07-28 | |||
| JP2009251511A | 2009-10-29 | |||
| JP2008112711A | 2008-05-15 | |||
| JP2014519191A | 2014-08-07 |
Foreign References:
| WO2015186359A1 | 2015-12-10 |
Attorney, Agent or Firm:
Masakazu Ito
Takayoshi Matsumoto
Satoshi Hosokawa
Mori Taishi
Takayoshi Matsumoto
Satoshi Hosokawa
Mori Taishi