Self-compensated liquid crystal polymer coatings on curved optical surface
US10520772B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2017 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Apr 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method disclosed herein includes applying a layer of photoalignment material on a non-flat optical surface, and exposing the layer of photoalignment material to alignment light that satisfies photoalignment criteria that are determined based on a representative thickness profile of a layer of liquid crystal material. The method also includes applying the layer of liquid crystal material over the layer of photoalignment material. Also disclosed is an optical element including a non-flat optical surface, a first layer of photoalignment material applied on the non-flat optical surface and a first layer of liquid crystal material. The layer of photoalignment material is aligned based on alignment light that satisfies photoalignment criteria that are determined based on a representative thickness profile of the layer of liquid crystal polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.