| 摘要 |
An object of the invention is to provide a lighting apparatus including a heat releasing portion which can enhance heat radiation by infrared to increase a heat releasing performance and to maintain the heat releasing performance for a long period of time. The lighting apparatus according to the present invention includes a thermal source such as a light source or a power supply unit and a heat releasing portion 3 for releasing heat from the thermal source, and further includes the first heat radiation film 91 formed by applying a coating material containing a heat radiating material on the surface of the heat releasing portion 3 and curing the material. Since the first heat radiation film 91 is formed by curing the material containing a heat radiating material, heat emittance by infrared is improved compared to the case with a heat radiation film formed by anode oxide coating (alumite treatment), thereby enhancing the heat releasing performance while maintaining the heat releasing performance by heat radiation for a long period of time because of the high resistance to damages. |
