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Title:
照明装置
Document Type and Number:
Japanese Patent JP7133774
Kind Code:
B2
Abstract:
To provide a luminaire which can be adjusted in its light to such a level of light that a user in an illumination space feels as if he or she stays under an unchanged illumination environment according to an age group of the user.SOLUTION: A luminaire 100 comprises: a first light-emitting part 10 which emits first light; a second light-emitting part 20 which emits second light; and a control part 30 for adjusting respective outputs of the first light-emitting part 10 and the second light-emitting part 20. When a spectrum of light produced by causing the first light to pass through a filter having a first property is defined as a third light emission spectrum, and a spectrum of light resulting from the passage of a combination light of the first light and the second light through a filter having a second property is defined as a fourth light emission spectrum, the difference between a light emission intensity of the third light emission spectrum after standardization and a light emission intensity of the fourth light emission spectrum after standardization is within 20% of the light emission intensity of the third light emission spectrum after the standardization at each wavelength of a first wavelength region of 470 nm to 530 nm and a second wavelength region of 560 nm to 580 nm.SELECTED DRAWING: Figure 1

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Inventors:
Toshifumi Ogata
Takashi Ohmura
Equestrian Keiji
Application Number:
JP2019033962A
Publication Date:
September 09, 2022
Filing Date:
February 27, 2019
Export Citation:
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Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H05B47/10; F21V9/38; F21V23/00; G01J1/00; G02B5/20; H01L33/00
Domestic Patent References:
JP2018120769A
Foreign References:
US20180056027
CN104854399A
Attorney, Agent or Firm:
Hiroi Arai
Teraya Eisaku
Shinichi Michizaka



 
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