Trimmer iris for use with a digitally shape-controlled lighting system
US6549324B2 · kind B2 · utility
8Cited by
8References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A variable diameter iris is used to change the pass gate of a shaped image produced by a digital mirror device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.