Projection device
US8672283B2 · kind B2 · utility
0Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/145
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A projection device including a turntable module and a projection module is provided. The turntable module includes a first turntable and a second turntable. The first turntable is disposed on a surface. The second turntable is disposed on the first turntable and connected to the first turntable, and rotates relative to the first turntable by revolving along a rotation axis. The projection module is disposed on the turntable module and fixed to the second turntable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.