The utility model discloses an example anti-reflection coating which has an anti-reflection characteristic on non-forward incident light. An anti-reflection coating for a substrate includes: a plurality of layers including an optical layer formed by alternating high refractive index materials and low refractive index materials; and a second layer in direct contact with the first optical layer of the plurality of layers. The sum of the optical thickness of the second layer and the optical thickness of the first optical layer of the plurality of layers is between 146 nanometers and 190 nanometers.
An anti-reflective coating for substrate