Laser wavelength measuring device
US5170224A · kind A · utility
4Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1990 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Oct 29, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/1243
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention is provided with a wavelength selecting means for uses in selectively receiving beam in compliance with each of a reference beam and a measured beam in order to simplify a correction or comparison of oscillating wavelengths in the laser device and further to improve a reliability and a controlling responsive speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.