Lens

The utility model provides a lens. The lens is not easy to attach dirt on the surface and has high durability. A lens (10) is provided with: a lens body (20) made of a light-transmissive material; an anti-reflection layer (30) formed on the surface (22) of the lens body (20); and a hydrophobic layer (40) formed on the surface of the antireflection layer (30). The anti-reflection layer (30) is formed by, for example, vacuum deposition such as resistance heating deposition, and the hydrophobic layer (40) is formed by, for example, vacuum deposition such as resistance heating deposition. 本实用新型提供镜头。该镜头不易在表面附着污垢且耐久性高。镜头(10)具有：镜头主体(20)，其由具有光透射性的材料构成；防反射层(30)，其形成于镜头主体(20)的表面(22)；以及疏水层(40)，其形成于防反射层(30)的表面。防反射层(30)例如通过电阻加热蒸镀那样的真空蒸镀而形成，疏水层(40)例如通过电阻加热蒸镀那样的真空蒸镀而形成。