Dual in focus gobo
US8573810B2 · kind B2 · utility
15Cited by
0References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jan 5, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gobo holder with two gobos that are rotatable one relative to the other. The gobos are located with their patterned surfaces facing one another and very close to one another so that both can be in focus at the same time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.