Edge animation multiple image display device
US7594349B2 · kind B2 · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2007 |
| Grant date | Sep 29, 2009 |
| Priority date | — |
| Expiry date | Nov 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B11/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A toy device unit that includes a pair of stacked transparent plates coupled to a housing. A user can write images on each plate. Mounted to the housing is a first light source aligned with an edge of the first plate and a second light source aligned with an edge of the second plate. The unit has a switch that can be moved by a user to illuminate either the first plate or the second plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.