Followspot parameter feedback
US4527198A · kind A · utility
Inventor
Key dates
| Filing date | Nov 19, 1982 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Nov 19, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus for providing the operator of a light projector suitable for performance lighting and capable of beam azimuth and elevation control with data as to the current values of the projector's adjustable parameters. Current azimuth and elevation data is presented both visually, by means of a viewfinder mounted on the projector, and numerically, by means of digital displays. Alternatively, visual feedback may be provided with an imaging device having a field of view substantially the same as the beam mounted at the projector coupled to a display located at a location remote from the projector. A drive for remotely controlling the light projector in azimuth and elevation is then provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.