| 摘要 |
An optical component includes: a base material; and a titanium oxide layer composed mainly of titanium oxide and containing at least one element selected from the group consisting of Nb, Si, Zr, Ta, Al, and Hf as an accessory component. The content of the accessory component in the titanium oxide layer is preferably 0.01 mass% or more and 1.0 mass% or less. |
