Patent ID: 9163790
Filing Date: 2015-10-20
Classification: F21K,F21S,F21Y,H05B

Abstract:
1. An illumination device comprising: a first light-emission part that emits light of a first correlated color temperature; a second light-emission part that emits light of a second correlated color temperature, the second correlated color temperature being lower than the first correlated color temperature; an optical member that is disposed at least on an optical path of the light emitted from the second light-emission part; and a color adjustment unit that adjusts a color of light that is a mixture of the light emitted from the first light-emission part and the light emitted from the second light-emission part by controlling an intensity of the light emitted from the first light-emission part and an intensity of the light emitted from the second light-emission part, wherein in a spectrum of the light emitted from the second light-emission part, a maximum intensity within a wavelength range from 400 nm to 500 nm is no greater than one-tenth of a maximum intensity within a wavelength range from 300 nm to 800 nm.