▎ 摘　　要

NOVELTY - The utility model relates to a graphene-based film of lens heating device, aiming at realizing defrosting demisting of various camera apparatus lens. the device comprises a graphite heating film, lens glass, a power supply part, a control switch composed of graphite heating film on the lens glass surface, through the control switch controlling the power supply part supplying power to graphene heating film, lens glass is heated using the heat effect of the current raw, reach the purpose of defrosting and defogging. graphene heating film connected with power supply part through lead, the control switch controlling the power supply part to reach the purpose of controlling the work of the heating film. lens heating device can share the same power supply with the whole imaging device, also can be by using a freestanding power supply. graphene heating film can be located inside the lens glass also can be located on the outside of the lens glass, the graphene can be sticking film technique by heating film is adhered on the surface of the glass, and also can adopt coating, growth, coating, deposition techniques such as heating the graphene film is formed on the surface of the glass.