Method for manufacture of optical element
First Claim
Patent Images
1. A method for manufacture of an optical element comprising:
- a) forming a thin film on a mold coated with a tungsten-molybdenum alloy film;
b) bonding a substrate to said thin film by a direct bonding process; and
c) separating said thin film and said substrate from said mold.
0 Assignments
0 Petitions
Accused Products
Abstract
In a method for manufacture of an optical element, a thin film is formed on a surface, such as a grating surface, an aspherical surface or a spherical surface, formed on a mold. Then, a substrate is bonded to the thin film. Subsequently, the thin film and the substrate are separated from the mold.
12 Citations
24 Claims
-
1. A method for manufacture of an optical element comprising:
-
a) forming a thin film on a mold coated with a tungsten-molybdenum alloy film;
b) bonding a substrate to said thin film by a direct bonding process; and
c) separating said thin film and said substrate from said mold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 23)
-
-
11. A method for manufacture of an optical element comprising:
-
a) forming a thin film on a mold coated with a tungsten-molybdenum film;
b) polishing a surface of said thin film;
c) bonding a substrate to said thin film by a direct bonding process; and
d) separating said thin film and said substrate from said mold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 24)
-
Specification