Multi-substrate gobo
US5806951A · kind A · utility
7Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Aug 26, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An acid etched gobo for producing a predetermined, multi-colored light pattern which is formed by first and second substrates having abutting planar surfaces secured together. Each of the planar surfaces includes a complimentary portion of the predetermined, multi-colored light pattern, acid etched in a coating deposited on the planar surfaces. At least one of the coatings is a dichroic coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.