Method for making refractive optical elements with graded properties
US5582626A · kind A · utility
5Cited by
17References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Jan 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0087
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods of making gradient property refractive elements such as gradient index lens blanks. The spatial distributions of constituents achieved by subjecting various starting assemblages to various diffusion conditions are predicted. Each such predicted spatial distribution of constituents is converted to a spatial distribution of the graded property. The property distribution which best approximates a desired distribution is selected, to thereby select one starting assemblage and one set of diffusion conditions. That assemblage and set of conditions are used in fabrication of the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.