Splice inspection method and apparatus using light inclined at a

Details Splice inspection method and apparatus using light inclined at a Splice inspection method and apparatus using light inclined at a

1989-01-04

1989-09-26

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250223R, 356429, G06K 710

Patent

active

048702919

ABSTRACT:
A method for inspecting a tape splice for defects in which the splice region between two sheets is irradiated with a light beam, the tapes are longitudinally conveyed relative to the light beam, a one-dimensional light detector means receives the portion of the light beam transmitted or reflected by a linear region of the sheets inclined at a prescribed angle to the transverse direction of the sheets, and the presence/absence of a splice defect is discriminated from change or lack of change in the quantity of light received by the light detector means; and an apparatus for carrying out this method.

REFERENCES:
patent: 3856414 (1974-12-01), Menary
patent: 4237378 (1980-12-01), Jones
patent: 4286149 (1981-08-01), Ben-Nathan et al.
patent: 4297585 (1981-10-01), Puschmann
patent: 4525630 (1985-06-01), Chapman
patent: 4611907 (1986-09-01), Inatsuki
patent: 4652124 (1987-03-01), Bowen et al.
patent: 4687321 (1987-08-01), Itoh
patent: 4687943 (1987-08-01), Bowen et al.

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