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Laser beam focusing method for laser scanner system, involves detecting data, when light is absorbed, and using data for adjusting lens to compensate changes of characteristics of lens and objective, when lens and objective are heated
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Apparatus for translational displacement of a lens in a laser focussing optical system
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Method for controlling a laser for generating a gray scale image and laser system
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Polarization measuring device and method for determining the polarization of a laser beam
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Device for steering and focusing a laser beam in the direction of a target object comprises a focusing unit for focusing the laser beam, a rotating X-mirror, a rotating Y-mirror, and a stationary field mirror for receiving the deviated beam
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Method and device for controlling the energy of a laserbeam
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Method and device for controlling the laser beam energy using a pair of Brewster plates rotating in opposite directions
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Power modulation system for laser beam regulated uses two contra-rotating Brewster elements both rotated by plus or minus forty-five degrees, to shift power from maximum to minimum level
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Laser beam targeting apparatus and method of laser cutting or marking an article
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Deflection unit for steering a laser beam and laser scanner
