Stabilized laser pointer
US7380722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2005 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Jul 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/646
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A pointing device having a laser in a handheld housing is disclosed. The laser generates a light beam that exits the housing. A beam steering assembly causes the light beam to move relative to the housing. The pointer includes a housing orientation sensor that measures the orientation of the housing. A controller operates the beam steering assembly to compensate for changes in the housing orientation. Embodiments based on housing orientation sensors constructed from a gyroscope and a camera are described. In addition to stabilizing the light beam location, embodiments in which the beam steering assembly also causes the light beam to execute a fixed pattern can also be constructed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.