Coherent light generators – Particular active media – Gas
Reexamination Certificate
2005-01-25
2005-01-25
Thomas, Tom (Department: 2815)
Coherent light generators
Particular active media
Gas
C372S055000, C372S057000, C372S061000
Reexamination Certificate
active
06847671
ABSTRACT:
A tangential blower for use in a gas discharge laser is provided provides improved homogeneity of laser gas flow through the discharge region of the laser. A flange which supports adjacent blower sections has an aerodynamic shape and occupies a minimal portion of the space in the inlet region of the blowers. The ends of the blower's shafts may be formed as a twice-profiled polygon which is has a non-uniform and preferably rounded geometry along its longitudinal axis where it fits into end flanges. The blades of the blower may be formed with varying thickness and radii of curvature. The blower's blades and hubs may be cast as a single piece of steel, titanium alloy, or other suitable material.
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Lambda Physik AG
Stallman & Pollock LLP
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