Machine for Fabricating Axially Symmetric Concave Aspherics
Applied Optics, Vol. 12, Issue 7, pp. 1717-1720 (1973)
http://dx.doi.org/10.1364/AO.12.001717
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Abstract
A machine has been constructed for fabricating concave aspheric surfaces of diameter up to 200 mm and reference radius from 20 mm to 150 mm. The principle is to use a plastic-bonded silicon carbide wheel with a convex cutting surface, which is continually dressed by a diamond form dresser. The cam used for directing the grinding wheel is cut on a numerically controlled jig borer with a tool of the same diameter as the cam follower. In operation, the location of the diamond dresser is used to provide feedback corrections for the grinding wheel.
Citation
Hiroshi Hashimoto, "Machine for Fabricating Axially Symmetric Concave Aspherics," Appl. Opt. 12, 1717-1720 (1973)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-12-7-1717
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