| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting fixture enabled to obtain isotropic illuminance distribution on an irradiation face, even with light distribution controlled with a lens.SOLUTION: A lighting fixture is provided with a light-emitting element 1 as a light source, and a lens 2 controlling light distribution. A relative position of the light-emitting element 1 and the lens 2 is established by a support member 3. The lens 2 has a diffusion layer 21 formed for granting diffusion transmittance on an incident face opposed to the light-emitting element 1. Therefore, unevenness in distribution of light flux emitted from the surface of the light-emitting element 1, if any, is reduced as it is diffused by the diffusion layer 21. With this structure, in a light pattern projected on an irradiation face specified on a front face of the lighting fixture, an adverse effect of unevenness of light flux distribution on the surface of the light-emitting element 1 is lowered to have an illuminance distribution on the irradiation face isotropic. That is, a contour of the light pattern projected on the irradiation face is to be circular. |
