Laser wavelength measuring device

Optics: measuring and testing – By particle light scattering – With photocell detection

Patent

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Details

356419, 372 32, G01J 345, G01N 2125, H01S 313

Patent

active

051702240

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.

REFERENCES:
patent: 3999864 (1976-12-01), Mutter

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