Q-vis Limited

Geoffrey Thomas Dair

Hank Christian Sciberras

Fred Norbert Reinholz

Zheng Lin Wang

Philip George Reid

Sharon Lee Humphris

An optical beam delivery configuration includes zoom lens means () and beam scanning means () defining an optical path () for a light beam. The beam scanning means is disposed after the zoom lens means in the direction of beam delivery. The zoom lens means () is arranged to receive a collimated incident light beam () on the optical path, and to be adjustable to determine the fluence of the beam when it is incident on the beam scanning means, while maintaining its collimation on exit from the zoom lens means. The beam scanning means () is arranged to laterally scan the beam at a downstream treatment location () while maintaining the beam's collimation and orientation at the location.

Optical beam delivery configuration

Crystal housing apparatus for adjustably positioning cooperating non-linear optical crystals in a laser beam generating system, includes a housing () with entry () and exit () windows for respective laser beams, respective holder means () to retain respective crystals within the housing in optical alignment with the windows, and means () mounting the respective holder means for individual fine rotational adjustment of the crystals about respective axes. Individual temperature control elements () are mounted in association with the respective holder means for controlling the temperature of the respective crystals and means () is provided for effecting the fine rotational adjustment of the crystals.

Crystal mounting in solid state laser systems

A method of treating a surface by laser ablation to modify selected regions of the surface, while other regions of the surface not to be substantially ablated are protected from the laser beam by a masking fluid, wherein the masking fluid comprises a solution of a pharmaceutically acceptable pyrido benzoxazine compound or derivative thereof effective as a masking agent.

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Subiaco, Australia

Geoffrey Thomas Dair