Method of making optical articles having gradient light influencing properties
US12076951B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Apr 23, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00865
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of making an optical article having a gradient tint and a gradient polarization. The method includes contacting one or more dye compositions including at least one of a dichroic dye, a photochromic-dichroic dye, or any combination thereof, with an optical element having a continuous coating including at least one alignment zone. At least a portion of the dye composition diffuses into the coating at a predetermined concentration gradient along at least a portion of the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.