| 摘要 |
PROBLEM TO BE SOLVED: To provide an illumination device which can change an outstanding feeling of a viewing object to which illumination light is radiated.SOLUTION: An illumination device 1 includes: a light source 2; and a plurality of lenses 3a and 3b for controlling light distribution of light emitted from the light source 2. The light source 2 and the lenses 3a and 3b can be moved with respect to the other, and the lenses 3a and 3b are configured so that beam angles of emission light are different with each other. The lens 3b in which the beam angle is relatively narrow is configured so that an outstanding index FCI of the emission light is increased by changing a wavelength component of incident light to the lens 3b. By changing not only an irradiation range of the illumination light but also the FCI, an outstanding feeling of a viewing object to which the illumination light is radiated can be changed more effectively. |
