Laser apparatus
US7257136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Sep 21, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/10069
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser apparatus (100) for performing the laser machining operation by condensing the laser light output from a laser oscillator (3) is disclosed. A laser output value calculation unit calculates a laser output value (L1) based on a command value (L0) issued to a laser oscillator (2). A temperature change estimating unit (31) estimates the temperature change or the temperature (Te) of specified component element(s) (7a, 7b) of the laser apparatus based on the elapsed time (t) and the laser output value calculated by the laser output value calculation unit. An adjusting unit (32) adjusts the conditions for controlling the laser or the conditions for laser machining based on the temperature change or the temperature of the specified component element estimated by the temperature change estimating unit. A stable laser machining operation is performed without a temperature sensor. The laser output value (L1) may be measured by a laser power sensor (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.