Device for the optical chopping of a laser beam
US4378480A · kind A · utility
43Cited by
2References
10Claims
0Family size
Inventor
Key dates
| Filing date | Jan 7, 1981 |
| Grant date | Mar 29, 1983 |
| Priority date | — |
| Expiry date | Jan 7, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/0846
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for optical chopping of a laser beam into discrete light pulses consisting of a source of laser light, a rotating mirror, a first collecting lens located between the laser source and the rotating mirror, a first system of collecting lenses for receiving light reflected from the mirror, and a second system of collecting lenses which receive light from the first system and direct the light energy in a predetermined pattern on the surface of a substrate such as a moving web of paper to be perforated or divided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.