EP 0083062 B1 19870909 - APPARATUS FOR INSPECTING PRINTED MATTERS
Title (en)
APPARATUS FOR INSPECTING PRINTED MATTERS
Publication
Application
Priority
JP 20817581 A 19811224
Abstract (en)
[origin: EP0083062A2] A printed matter (4), in which an ink capable of reflecting electromagnetic waves of wavelengths outside the visible range is used, is irradiated by electromagnetic radiation from a lamp (8) at least containing said wavelengths outside the visible range. Light reflected from the irradiated printed matter (4) is coupled to a photoelectric converter (12), the output of which is taken out through an amplifier (13). The printed matter (4) is inspected in terms of whether the level of the amplified output is high or low for a invisible wavelength range.
IPC 1-7
IPC 8 full level
G07D 7/00 (2006.01); G07D 7/12 (2006.01); G07D 7/20 (2006.01)
CPC (source: EP US)
G07D 7/12 (2013.01 - EP); G07D 7/121 (2013.01 - EP US); G07D 7/20 (2013.01 - EP)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
EP 0083062 A2 19830706; EP 0083062 A3 19831130; EP 0083062 B1 19870909; AT E29609 T1 19870915; DE 3277256 D1 19871015; JP S58109989 A 19830630
DOCDB simple family (application)
EP 82111868 A 19821221; AT 82111868 T 19821221; DE 3277256 T 19821221; JP 20817581 A 19811224