Beam splitting apparatus
US4797696A · kind A · utility
31Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Sep 21, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/704
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for splitting radiant energy beams produced by a laser or other light source. The apparatus comprises a plurality of mirrors, each aligned to reflect a beam or plurality of beams from one mirror to the next. Each mirror comprises a glass body with a layer of 50% reflective coating and a layer of anti-reflecting coating on one side of the body. A layer of 100% reflective coating is on the other side of the body. A beam is, thus, 50% reflected from the first reflective layer and allowed 50% to pass through the layer. The remainder of the beam is reflected from the 100% reflective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.