Method of and apparatus for measuring laser beam
US4474468A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1981 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Sep 9, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/4257
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to the invention, a thin wire 13 is arranged across the laser beam 2, and the change of resistance in the thin wire 13 is measured by a resistance meter 21 while moving the thin wire 13 by a driving mechanism 23, thereby to measure the power of the laser beam or the position of the laser beam. The apparatus can be used for monitoring the power of laser beam or position of the same used in the high-power laser device for processing or the like purpose. According to the invention, it is possible to monitor the power and position of the laser without interrupting the laser beam and without incurring substantial increase of the loss of power of the laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.