Light beam preparation arrangement
US7046897B2 · kind B2 · utility
1Cited by
12References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Sep 12, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S385/901
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light beam preparation arrangement includes a light tunnel, a rotatable unit, and a drive unit. In one aspect, a fixation rigidly attaches the light tunnel directly to the drive unit. In another aspect, temperature of the light tunnel in controlled. In another aspect, the rotatable unit is spaced a distance from the light tunnel, and the distance is controlled. In another aspect, alignment between the light tunnel and the rotatable unit is controlled. In another apsect, the light tunnel is hollow and a gas flows though the tunnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.