Optical pattern tracer

Details Optical pattern tracer Optical pattern tracer

1976-12-14

1978-06-27

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

With focusing or projection screen

354 4, G03B 2900, G03B 2770

Patent

active

040971422

ABSTRACT:
This invention relates to apparatus for automatically tracing patterns under the control of a program recorded in a computer. Said apparatus comprises means for initially recording the pattern in a liquid crystal cell by a known method under the control of said computer, and means for projecting the pattern thus recorded onto a photosensitive surface which records it on a reduced scale. It may also be projected on a large scale onto a monitor screen.

REFERENCES:
patent: 3573849 (1971-04-01), Herriot et al.
patent: 3584949 (1971-06-01), Clow
patent: 3648583 (1972-03-01), Blattner
patent: 3704946 (1972-12-01), Brault et al.
patent: 3732796 (1973-05-01), Marcy
patent: 3764211 (1973-10-01), Morse et al.

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