OPTICAL MULTILAYER COATING, OPTICAL LENS, AND METHOD OF MANUFACTURING OPTICAL MULTILAYER COATING

摘要

The present invention relates to an optical multilayer coating placed on or above a substrate. The optical multilayer coating includes a high-refractive index layer with a refractive index of 1.76 to 2.7, a magnesium oxyfluoride layer, and a magnesium fluoride layer. The high-refractive index layer, the magnesium oxyfluoride layer, and the magnesium fluoride layer are stacked on or above the substrate in this order and are in contact with each other. The magnesium oxyfluoride layer has a composition represented by the following formula:;MgxOyFz  (1)where z/x is not less than 0.01 nor greater than 1.45 and z/y is not less than 0.01 nor greater than 3.17.

主权项

1. An optical multilayer coating formed on or above a substrate, comprising:
a high-refractive index layer with a refractive index of 1.76 to 2.7; a magnesium oxyfluoride layer; and a magnesium fluoride layer, the high-refractive index layer, the magnesium oxyfluoride layer, and the magnesium fluoride layer being stacked on or above the substrate in this order and being in contact with each other, wherein the magnesium oxyfluoride layer has a composition represented by the following formula:
MgxOyFz  (1) where z/x is not less than 0.01 nor greater than 1.45 and z/y is not less than 0.01 nor greater than 3.17.