Device for detecting malfunctions in laser devices
US5764666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1995 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Dec 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/134
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A malfunction signal indicating that a laser device is malfunctioning is output from a misfire detector when the oscillation of a laser beam is detected by a laser oscillation detector in an event that no laser oscillation command is detected by a laser oscillation command detector. Another malfunction signal indicating that the laser device is malfunctioning is output from the malfunction detector when no oscillation of a laser beam is detected by the laser oscillation detector at a prescribed time after a laser oscillation command has been detected by the laser oscillation command detector. The troubled part (thyratron or charging circuit) in the laser device is located based on the detection results of the malfunction detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.