VORRICHTUNG ZUR STABILISATION DER STRAHLUNGSENERGIEVERTEILUNG IN EINEM LASERSTRAHLABTASTER.

摘要

A laser beam scanning apparatus, a device for stabilization of the beam intensity distribution, the device comprising an air turbulence generator disposed adjacent a portion of the laser beam optical path and adapted to provide forced air flow substantially thereacross, the forced air flow tending to eliminate variations in the index of refraction of the air layers in the optical path.