| 摘要 |
PROBLEM TO BE SOLVED: To provide an illumination device that allows expansion of a light distribution angle.SOLUTION: An illumination device 1 comprises: a main body 2; a light source part 3 that is arranged in one end of the main body and has a light emitting element; a globe 5 provided to cover the light source; and a reflection part 9 provided to oppose the light source and having a plane exposed from the globe on an opposite side of the light source. The reflection part 9 has a reflection part main body 9b and a reflection layer 9a provided in a plane of the reflection part main body. The reflection layer is arranged to cover an entire surface of the reflection part main body with a higher reflectance than the globe or a reflectance of 90% or higher and can be a layer formed by coating a white resin or the like on the plane of the reflection part main body. The reflection part main body has a higher thermal conductivity than the globe and can be made of metal substances such as aluminium, copper and magnesium alloy. |
