Laser system by modulation of power and energy
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United States of America Patent
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Jun 10, 2003
Grant Date -
Mar 27, 2003
app pub date -
Nov 7, 2001
filing date -
Sep 25, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An upcollimator structure 28 for a laser system 10 is provided. The upcollimator structure 28 includes at least one concave lens 40; at least one convex lens 42 spaced from the concave lens; and at least one lens member 48 composed at least in part of piezoelectric material disposed between the lenses. When voltage is applied to the lens member 48, a refractive index of the lens member changes thus changing an upcollimation factor when a light beam is passed through the upcollimator structure. The lens member can be moved with respect to the convex lens and the concave lens thereby changing the upcollimation and focal point of the light beam as the light beam exits the optical.
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