| abstract |
A lens provided on a surface of a vehicle-mounted camera has a problem that a field of view becomes undesirable because small water droplets caused by fog, light rain and others adhere and scatter incident light. In the vehicle-mounted camera provided on a periphery of a vehicle, a hydrophilic film made of silicon dioxide particles and binder is provided on the lens surface provided on the outer surface of the camera, a mean particle diameter of silicon dioxide particles dispersed on the lens side of the hydrophilic film is larger than a mean particle diameter of silicon dioxide particles on the side in contact with air space outside the vehicle-mounted camera, the mean particle diameter on the side affixed to the lens side out of the silicon dioxide particles is 40 to 100 nm, and the mean particle diameter on the side in contact with air space is 10 to 15 nm. |