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Robert Hujar Phones & Addresses

  • 6679 Daffodil Dr, Bath, NY 14810 (607) 776-5065
  • Hammondsport, NY
  • Painted Post, NY

Publications

Us Patents

Simultaneously Grinding And Polishing Preforms For Optical Lenses

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US Patent:
47606720, Aug 2, 1988
Filed:
Dec 10, 1986
Appl. No.:
6/940275
Inventors:
Charles M. Darcangelo - Corning NY
Robert M. Hujar - Painted Post NY
Paul S. Schmitt - Corning NY
Harold G. Shafer - Rock Stream NY
Assignee:
Corning Glass Works - Corning NY
International Classification:
B24B 1300
US Classification:
51284R
Abstract:
An optical surface on a glass preform for an optical lens is simultaneously ground and polished. A glass blank is rotated by a work spindle mounted in an air bearing. A resin bonded diamond cutting ring is rotated by a tool spindle mounted in an air bearing. The axis of the tool spindle is set at an angle with respect to the axis of the work spindle with the edge of the cutting ring being centered on the axis of rotation of the blank. One of the spindles is moved linearly with respect to the other to move the cutting ring into engagement with the blank for grinding a precisely shaped, polished optical surface thereon. The spindles are mounted on a table and a driving motor for the linear drive is remote from the table to isolate the spindles from the vibration of the motor.
Robert M Hujar from Bath, NY, age ~80 Get Report