Hand-held instrument for reflection measuring on printed sheets

Details Hand-held instrument for reflection measuring on printed sheets Hand-held instrument for reflection measuring on printed sheets

1998-04-16

1999-11-16

Hantis, K. P.

Optics: measuring and testing

Of light reflection

G01N 2155

Patent

active

059867698

ABSTRACT:
The present invention relates to a hand-held instrument for reflection measuring on printed sheets and test charts, which includes a housing with a base plate, a measuring head, a display field, a plurality of operating keys, and a measuring and evaluating electronic unit. According to the invention, a parallel guide plate is provided on a mounting side of the measuring head, at a bottom longitudinal edge of the housing, the guide plate in the area of the measuring head is provided with a view recess for a measuring hole thereof.

REFERENCES:
patent: 4403419 (1983-09-01), Graves
patent: 4505589 (1985-03-01), Ott et al.
patent: 4901164 (1990-02-01), Kurosawa
patent: 5038492 (1991-08-01), Bryant et al.
patent: 5073028 (1991-12-01), Bowden et al.
patent: 5115227 (1992-05-01), Keiji
patent: 5373364 (1994-12-01), Krzyminski
patent: 5595445 (1997-01-01), Bobry
patent: 5691817 (1997-11-01), Cargill et al.

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