G - Physics – 01 – B
Patent
G - Physics
01
B
340/136, 33/53
G01B 11/02 (2006.01) B41F 33/00 (2006.01) G01B 11/26 (2006.01)
Patent
CA 1329644
ABSTRACT OF THE DISCLOSURE A register-measuring device, according to the present invention, comprises a housing, a sight which is formed in the bottom surface of the housing, an optical system at a distance from the sight with its optical axis being directed towards the sight, a mirror provided between the optical system and the sight which deflects the light reflected within the sight, a light-receiving unit positioned to be irradiated with light deflected by the mirror, and an evaluation unit for evaluating the information of the light picked up by the light-receiving unit. This measuring devices is suitable for determining register error associated with multi-colour prints made by printing presses. The device automatically compensates for incorrect positioning thereof. The invention also relates to a process used by the register measuring device and a particular register mark.
565877
Heidelberger Druckmaschinen Aktiengesellschaft
Johnson Douglas S. Q.c.
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