Back to results
US 2011/0217556 A1Published application
Optical component and manufacturing method thereof
AssigneeOlympus Corporation
InventorsTAKESHI DEGUCHI, Yoshito Ito, Kei Kikuchi, Nobuyoshi Toyohara
Life of this patent
Estimating the term…
Abstract
An optical component that includes a substrate and an optical thin film formed on the substrate. An internal stress σ (in units of MPa) satisfies Expression (1) given below when x=|E/R| is in the range of 0 to 3: σ≦−30x (1), where E is an effective optical diameter (in units of mm) of the substrate, R is a radius of curvature (in units of mm) of the substrate, and x is an absolute value of a ratio of E to R.
Claims12
An optical component including a substrate and an optical thin film formed on the substrate,
- wherein an internal stress σ, in units of MPa, satisfies Expression (1) given below when x=|E/R| is in the range of 0 to 3:
- σ≦−30x (1),
- where E, in units of mm, is an effective optical diameter of the substrate, R, in units of mm, is a radius of curvature of the substrate, and x is an absolute value of a ratio of E to R.
A method of manufacturing an optical component comprising:
- forming an optical thin film on a substrate,
- wherein an internal stress σ, in units of MPa, satisfies Expression (1) given below when x=|E/R| is in the range of 0 to 3:
- σ≦−30x (1),
- where E, in units of mm, is an effective optical diameter of the substrate, R, in units of mm, is a radius of curvature of the substrate, and x is an absolute value of a ratio of E to R.
1 more element
Dependencies are inferred from the claim text.