Optical combiner lens with reflective optical coating to guide light across a seal
US11585975B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical combiner lens includes a lightguide having an input zone at which light enters the lightguide, an output zone from which light exits the lightguide, and a propagation zone between the input zone and the output zone that provides a propagation path for light from the input zone to the output zone. A lens is stacked over the lightguide. A seal engages the lightguide and the lens. The seal is positioned relative to the lightguide such that a portion of the seal is stacked over a portion of the propagation zone. A reflective optical coating is interposed between the portion of the propagation zone and the portion of the seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.