| 摘要 |
PROBLEM TO BE SOLVED: To obtain an amber coating film used for the obtaining of amber color light in an electric bulb for an automobile or ornament, where light transmissivity is high, the number of laminated sheets can be reduced, heat resistance is alto superior also and deterioration of optical characteristics is not generated. SOLUTION: A multilayered film 2 for obtaining the amber color is formed on a substrate 1 of the bulb or the like. At this time, a visible light absorbing layer Abs, having absorption property in the visible light region is used and about nine layers worth of the visible light absorbing layers Abs and low refractive index layers L are laminated alternately to form the multilayered film 2. |
