| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric lamp wherein, using an LED light-emitting bulb as a light source, light diffusion characteristics does not disappear even when dew condensation takes place while visibility angle in front direction is wide. SOLUTION: An objective lamp 10 comprises a hollow jujube-shaped bulb body 11 of glass or resin, etc., and an LED light-emitting bulb 12 allocated in the bulb body 11, with a roughened part 13 on the surface of the bulb body 11. The LED light-emitting bulb 12 may by a normal LED light-emitting bulb, or an LED light-emitting bulb 12 which has, devised for special purpose, light diffusion characteristics itself is better. The roughened part 13 of the objective lamp 10 is coated with a coating member 16 to form a lamp 18. The coating member 16 is, for example, of mold resin, etc., comprising a smooth surface and light-transmission characteristics. The light of the LED light-emitting bulb 12 is irregularly reflected on the roughened part 13 at the surface of the objective bulb 10 for better diffusion in all directions. |
