Patent · US Active

Apparatus for linear illumination of a moving product web

US7784975B2 · kind B2 · utility

7Cited by

3References

13Claims

0Family size

Assignee

Texmag GmbH Vertriebsgesellschaft · CH

Inventors

Stephan Krebs · Eschborn, DE
Alfred Eder · Friedberg, DE
Juergen Eisen · Augsburg, DE
Lars Zwerger · Augsburg, DE

Key dates

Filing date	Jul 2, 2008
Grant date	Aug 31, 2010
Priority date	—
Expiry date	May 6, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01D2205/40
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus (1) serves for linear illumination of a moving product web (6), the apparatus (1) having at least one light source (4) emitting light. In order to achieve high luminance in a linear subregion of the product web (6), at least a portion of the light emitted by the light source (4) is reflected towards the product web (6) by at least one tubular reflector (5). The tubular reflector (5) in this case has at least one light exit slit (7) which is assigned to the product web (6). Moreover, the tubular reflector has at least one observation slit (8) which lies opposite the light exit slit (7). The illuminated product web (6) can be observed through this observation slit (8) by means of a line camera (2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.