Ribbed telescope mirrors with thermal gradient control

Details Ribbed telescope mirrors with thermal gradient control Ribbed telescope mirrors with thermal gradient control

2007-09-25

2007-09-25

Shafer, Ricky D. (Department: 2872)

Optical: systems and elements

Mirror

Including specified control or retention of the shape of a...

C359S871000, C359S900000, C156S107000

Reexamination Certificate

active

10461013

ABSTRACT:
Ribbed mirrors allowing heat to be conducted past the glass during optical polish and application of coatings and methods of fabricating same. The method comprises placing a bridge of thermally conductive material in thermal contact with the mirror plate and the supporting rib at the interior angle. The preferred thermally conductive material is RTV silicone. However, the RTV silicone can be mixed with a powdered heat conductor such as diamond dust, aluminum oxide and silicon carbide. Alternatively, the thermally conductive fillet can be made from a segment of thermally conductive rigid material, such as copper, diamond, beryllium, silver and aluminum having an exterior angle matching the interior angle and a thermally conductive plastic such as RTV silicone or thermally conductive grease, silicone or epoxy applied to surfaces of the exterior angle.

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