Segmented light guide having light-blocking groove between segments, and a method of manufacturing
US11474290B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2019 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Sep 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide is described that includes a thermoplastic light channeling layer having at least a first segment, at least a second segment, and at least one groove dividing the thermoplastic light channeling layer into the first segment and second segment. The light guide further includes one or more light sources at least at the first segment. The at least one groove is shaped to block light from leaking between the first segment and the second segment. A method of forming the light guide is described that includes: providing a thermoplastic light channeling layer, thermoforming the at least one groove to divide the light guide into the first and second segments, and providing one of more light sources to at least the first segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.