Back to results
US 5,638,212 AGranted
Method of manufacturing a diffractive surface profile
AssigneeEastman Kodak Company
InventorsMark M. Meyers, Mark E. Schickler
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a diffractive surface comprising: rotating a surface to be cut at a rate W>1,500 RPM; translating a cutting tip at low speed V where V<1.2 mm/minute; and cutting the surface with the cutting tip.
Claims9
A method of manufacturing a diffractive optical component, said method comprising, in order, the steps of:
- (i) providing a scoring tool, said scoring tool having a tip with a small flat surface, said small flat surface having the following width l:
- l<2 micrometers;
- (ii) making a mold by having a mold surface cut by said scoring tool to form a series of cuts on said mold surface, said cuts being separated by less than 2 micrometers;
- (iii) placing an optically transmissive material in said mold;
- and
- (iv) forming a diffractive surface of said optical component out of said refractive material.
3 more elements
A method of manufacturing diffractive surfaces, said method comprising, in order, the steps of:
- (i) providing a scoring tool, said scoring tool having a tip with a small flat surface, said small flat surface having a width l wherein:
- l<2 micrometers;
- (ii) providing a body of optically transmissive material;
- and
- (iii) cutting a diffractive surface profile on a surface of said body of optically transmissive material with said scoring tool to form a series of cuts on said surface, each cut of said series of cuts being separated from another cut by less than 2 micrometers.
2 more elements
Dependencies are inferred from the claim text.