| 摘要 |
PURPOSE: A sun film for a vehicle is provided to help an operator to stably drive when passes through a tunnel or drive at the night time or in the underground parking lot by changing the brightness according to sunlight or ultraviolet rays. CONSTITUTION: A sun film for a vehicle is comprised of normal raw material and photo-chromic pigment(14). The sun film changes color according to the intensity of sunlight or ultraviolet rays when being attached to an ordinary glass surface. The color of the sun film is darkly changed when the vehicle passes through a tunnel or the vehicle is driven at the night time. The color of the sun film is brightly changed when the vehicle is driven at the night time.
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