Title:
Lighting method and light emitting device
Document Type and Number:
Japanese Patent JP6306098
Kind Code:
B2
Abstract:
To provide an illumination method and a light-emitting device which are capable of achieving, under an indoor illumination environment where illuminance is around 5000 lx or lower when performing detailed work and generally around 1500 lx or lower, a color appearance or an object appearance as perceived by a person, will be as natural, vivid, highly visible, and comfortable as though perceived outdoors in a high-illuminance environment, regardless of scores of various color rendition metric. Light emitted from the light-emitting device illuminates an object such that light measured at a position of the object satisfies specific requirements. A feature of the light-emitting device is that light emitted by the light-emitting device in a main radiant direction satisfies specific requirements.
Inventors:
Hideyoshi Horie
Application Number:
JP2016128336A
Publication Date:
April 04, 2018
Filing Date:
June 29, 2016
Export Citation:
Assignee:
Citizen Electronics Co., Ltd.
International Classes:
H01L33/50; F21S2/00; F21V9/00; H01L33/00; H05B37/02; H05B44/00
Domestic Patent References:
| JP2012506615A | ||||
| JP2009289957A | ||||
| JP2011049174A |
Foreign References:
| WO2010126065A1 | ||||
| US20100110672 |
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Shinichi Sanuki
Takeshi Niwa
Toshiaki Shimoda
Shinichi Sanuki
Takeshi Niwa
Toshiaki Shimoda
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