Light transmission apparatus and method
US6574414B2 · kind B2 · utility
6Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | May 6, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S385/901
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lightpipe apparatus and method includes a lightpipe body for transmitting light. The lightpipe body includes a receiving end portion for receiving the light and a display end portion. The lightpipe body further includes a first refractive surface disposed between the receiving end portion and the display end portion. An opaque substrate is applied to the first refractive surface to reflect the light toward the display end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.