Method for pattern generation and surfacing of optical elements

Details Method for pattern generation and surfacing of optical elements Method for pattern generation and surfacing of optical elements

1983-01-03

1985-08-13

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51 57, B24B 100

Patent

active

045341370

ABSTRACT:
A method for generating patterns progressively changing in configuration from circular through eliptical and oval and inclusive of rectilinear traces is effected by constraining a stylus to movement along mutually othogonal axes, by generating plural sets of stylus displacement forces and by applying such forces in combination to the stylus. The stylus displacement force sets vary with time in respective magnitudes and senses to compel stylus movement progressively in such circular, eliptical, oval and rectilinear patterns. In use of the pattern generating method for surfacing of an optical element, a surfacing tool in engagement with the optical element is displaced as the stylus and the optical element may itself be subjected to oscillatory movement.

REFERENCES:
patent: 2159620 (1939-05-01), Long
patent: 2168843 (1939-08-01), Lockhart
patent: 2754638 (1956-07-01), Duffens
patent: 3156073 (1964-11-01), Strasbaugh
patent: 3552899 (1976-01-01), Tagnon

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