Optical: systems and elements – Mirror – Fluid cooled mirror
Reexamination Certificate
2008-02-19
2010-06-22
Shafer, Ricky D (Department: 2872)
Optical: systems and elements
Mirror
Fluid cooled mirror
C359S846000, C359S848000
Reexamination Certificate
active
07740362
ABSTRACT:
A radius of curvature controlled mirror for controlling precisely the focal point of a laser beam or other light beam. The radius of curvature controlled mirror provides nearly spherical distortion of the mirror in response to differential expansion between the front and rear surfaces of the mirror. The radius of curvature controlled mirror compensates for changes in other optical components due to heating or other physical changes. The radius of curvature controlled mirror includes an arrangement for adjusting the temperature of the front surface and separately adjusting the temperature of the rear surface to control the radius of curvature. The temperature adjustment arrangements can include cooling channels within the mirror body or convection of a gas upon the surface of the mirror. A control system controls the differential expansion between the front and rear surfaces to achieve the desired radius of curvature.
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Neil George R.
Shinn Michelle D.
Jefferson Science Associates
Shafer Ricky D
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