Spectral feature control apparatus
US10845610B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | Jul 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2366
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A spectral feature selection apparatus includes a dispersive optical element arranged to interact with a pulsed light beam; three or more refractive optical elements arranged in a path of the pulsed light beam between the dispersive optical element and a pulsed optical source; and one or more actuation systems, each actuation system associated with a refractive optical element and configured to rotate the associated refractive optical element to thereby adjust a spectral feature of the pulsed light beam. At least one of the actuation systems is a rapid actuation system that includes a rapid actuator configured to rotate its associated refractive optical element about a rotation axis. The rapid actuator includes a rotary stepper motor having a rotation shaft that rotates about a shaft axis that is parallel with the rotation axis of the associated refractive optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.