Image pickup system

An image pickup system comprising one or more optical elements, wherein an infrared cut coating in which a maximum value of reflectance at a wavelength λ of 800 to 1200 nm is 30% or more, is formed on at least two optical surfaces of the optical elements,

• wherein the image pickup system has a layered structure in which when a design wavelength is λ0, a refractive index of a low refractive index layer is nL, a thickness of the low refractive index layer is dL, a refractive index of a high refractive index layer is nH, a thickness of the high refractive index layer is dH,
• wherein the layered structure includes at least three layers, each layer of the infrared cut coating being sequentially numbered as at least a first layer, a second layer, and a third layer from an air side, and
• wherein the infrared cut coating satisfies following conditions:
• 800 nm≦λ0≦1200 nm,
• 1.3≦nL≦1.6,
• 1.8≦nH≦2.3,
• the first layer satisfies 0.08λ0≦nLdL≦0.17λ0,
• the second layer satisfies 0.2λ0≦nHdH≦0.3λ0, and
• the third layer satisfies 0.2λ0≦nLdL≦0.3λ0.