VEHICLE-MOUNTED CAMERA

摘要

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, 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.

主权项

1. A vehicle-mounted camera provided on a periphery of a vehicle,
wherein a hydrophilic film including different two types of silicon dioxide particles having a mean particle diameter in a predetermined range and binder mainly made of silicon dioxide is provided on a surface of a lens provided on an outer surface of the camera; of the different two types of silicon dioxide particles having the mean particle diameter in the predetermined range, the silicon dioxide particles having the larger mean particle diameter adhere to the surface of the lens; and the silicon dioxide particles having the smaller mean particle diameter adhere to a surface on the side of air space of the silicon dioxide particles having the larger mean particle diameter.