Drawing pencil for use with optical scanning apparatus

Details Drawing pencil for use with optical scanning apparatus Drawing pencil for use with optical scanning apparatus

1978-01-13

1980-01-15

Robinson, Thomas A.

Telegraphy

Systems

Position coordinate determination for writing

G08B 522, G08C 2100

Patent

active

041840445

ABSTRACT:
Disclosed is a drawing pencil having a magnetic coil scanning element thereon for use with an optical analytic apparatus which scans a grid plate drawing table and converts an image thereon into an electrical signal. The magnetic coil scanning element is juxtaposed to the writing tip of the pencil such that its axis is inclined with respect to the axis of the drawing pencil, preferably such that in the normal writing position of the pencil the axis of the magnetic coil scanning element can be aligned perpendicularly to the surface of a drawing table.

REFERENCES:
patent: 3444465 (1969-05-01), Teixeira
patent: 3462548 (1969-08-01), Rinder
patent: 3528295 (1970-09-01), Johnson et al.
patent: 3532817 (1970-10-01), Jones et al.

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