Patent ID: 9305970
Filing Date: 2016-04-05
CPC Classification: F21K,F21Y,H01L,H05B

Claim Text:
1. An illumination method comprising: illuminated objects preparation step of preparing illuminated objects; and an illumination step of illuminating the objects by light emitted from light-emitting devices, wherein (1) a distance D (2) if an a* value and a b* value in CIE 1976 L*a*b* color space of 15 Munsell renotation color samples from #01 to #15 listed below when mathematically assuming illumination by the light measured at the position of the objects are respectively denoted by a* where ΔC (3) if hue angles in CIE 1976 L*a*b* color space of the 15 Munsell renotation color samples when mathematically assuming illumination by the light measured at the position of the objects are denoted by θ where Δh