Two-axis beam steering system for use in automated light fixtures
US4827387A · kind A · utility
16Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Jun 1, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S10/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A beam steering mechanism for deflecting a light beam along any selected azimuth and elevational direction. The beam is movable without limitation about a pan axis and about a tilt axis, by drive motors that are rigidly mounted to a housing and are not bodily moved with the light beam. Movement about the pan axis is effected by rotation of a first mirror mounted in a first rotatable cylinder. Movement about the tilt axis is effected by rotation of a second mirror mounted in a second cylinder that is panned with the first cylinder and is itself mounted for rotation about the tilt axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.