Plate scanning device having light funnels with an adjustable ap

Details Plate scanning device having light funnels with an adjustable ap Plate scanning device having light funnels with an adjustable ap

1996-08-29

1998-06-23

Le, Que

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

25022729, 250216, H01J 4014

Patent

active

057708525

ABSTRACT:
A plate scanning device for measuring diffused or reflected light is provided. The plate scanning device includes a longitudinally extending silicon sensor strip and at least one light source extending substantially parallel to the sensor strip. Adjustably mounted light funnels form an aperture therebetween for receiving light reflected from a printing plate. The aperture has a width and length which is slightly smaller than a width and length of the sensor strip.

REFERENCES:
patent: 4512662 (1985-04-01), Tobias
patent: 5038028 (1991-08-01), Boyd et al.
patent: 5170711 (1992-12-01), Maier et al.

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