Apparatus and method for registering silk screens

Details Apparatus and method for registering silk screens Apparatus and method for registering silk screens

1995-10-24

1998-12-08

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

101115, 101129, G09G 524

Patent

active

058476890

ABSTRACT:
Printing screens are registered using a photosensitive position locating sensor which is affixed to a pallet and aligned with the image of a register mark on the first of a series of printing screens. The location of the image is stored and signalled in a display device. The pallet is then roughly aligned with a second and subsequent screens of the series. The subsequent screens are each moved until the image of its register mark is superimposed upon the stored image. The signal output from the sensor is applied to a microprocessor which controls the display device.

REFERENCES:
patent: 4223055 (1980-09-01), Castelluzzo et al.
patent: 4463673 (1984-08-01), Moore
patent: 5052291 (1991-10-01), Takahashi et al.
patent: 5129155 (1992-07-01), Hoffman et al.
patent: 5136948 (1992-08-01), Fujino et al.
patent: 5241187 (1993-08-01), Ikeda et al.
Preregistration, Susan Venell, Jul. 1983, pp. 92-95, Class 101 Subclass Dig. 36.

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