Illuminated pattern device
US7150539B2 · kind B2 · utility
5Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2004 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Oct 11, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illuminated pattern device includes a pattern body (32) having a pattern (321), a bottom board (39) having a reflective surface, a plurality of dot light sources arranged on the bottom board, and a frame (36) sandwiched between the pattern body and the bottom board. The pattern defines a projection surface on the bottom board. The dot light sources are evenly arranged on the bottom board such that they provide relatively uniform brightness for the pattern body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.