Automatic marking device for lensmeter

Details Automatic marking device for lensmeter Automatic marking device for lensmeter

1985-10-04

1987-06-30

Martin, Jr., William D.

Geometrical instruments

Gauge

Lens

33 28, 33200, G01B 908, A61B 310

Patent

active

046760040

ABSTRACT:
An automatic marking device for a lensmeter comprising: a lens support member; a lens holder having a lens holding member cooperative with the lens supporting member for clamping therebetween the lens movably in a plane substantially perpendicular to a measuring optical axis of the lensmeter; a marking device having a marking unit movably mounted on the lens holder and having at least one marking stylus. The marking unit is carried for rotation about an axis which is parallel to the measuring optical axis. Two hands having inner surfaces are provided and adapted for contacting adjacent edges of the lens such as to clamp the lens therebetween. A hand moving device is provided for moving the hands in the plane in accordance with the result of measurement of the refraction characteristics of the lens.

REFERENCES:
patent: 1164795 (1915-12-01), Emerson
patent: 2803995 (1957-08-01), Gunter, Jr. et al.
patent: 3870415 (1975-03-01), Cornsweet
patent: 4115924 (1978-09-01), Kleinkopf

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