Compact fluorescent lamp with diffusion film

摘要

It is an object to provide a compact fluorescent lamp having a diffusion film applied to the inner surface of the outer tube globe, in which the ultraviolet light transmissivity is lower than or equal to 25% and the visible light transmissivity is greater than or equal to 95% without increasing the skin failure rate of the film. A compact fluorescent lamp according to the present invention relates to a compact fluorescent lamp in which a light emitting tube is accommodated in an outer tube globe; wherein a diffusion film for diffusing a visible light radiated from the light emitting tube and absorbing an ultraviolet light radiated from the light emitting tube is formed on an inner surface of the outer tube globe; and the diffusion film consists of TiO 2 and SiO 2 , and an average particle diameter of SiO 2 is 1 to 10µm.