Laser control device, method and program
US10230209B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2017 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Jul 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser control device includes: an averaging circuit that applies a primary delay filter to an actual instantaneous value; a data processing unit that applies a primary delay filter to an actual average value H, thereby calculating an actual average value S; a reference value generation unit that generates an reference value; and an output reduction determination unit that determines output reduction. In a case in which pulse on time in the output command value exceeds a sum of the processing period and start-up time of a power supply, if the actual instantaneous value falls below the reference value, it is determined that an output is reduced; and in a case in which the pulse on time is equal to or less than the sum, if the actual average value S falls below the reference value, it is determined that an output is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.