| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device in which a color of a filter element is hardly seen.SOLUTION: A lighting device 100 includes a light emission module 130, a housing 120 having an emission port 122 for emitting the light from the light emission module 130, and accommodating the light emission module 130, and a filter element 160 disposed between the light emission module 130 and the emission port 122 in the housing 120, and cutting a wavelength component of a part of the light from the light emission module 130. A≤8×L is satisfied when a length of an outline of the filter element 160 when visually observing the same form an outer side of the housing 120 is A [mm], and a clearance between the light emission module 130 and the filter element 160 is L [mm].SELECTED DRAWING: Figure 6 |
