Method and device for detecting patterns on a substrate
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United States of America Patent
Stats
-
Jul 10, 2007
Grant Date -
Nov 10, 2005
app pub date -
Apr 28, 2005
filing date -
May 5, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Device for detecting patterns on a travelling substrate, namely on a substrate being deposited on a sheet or on web matter, wherein the substrate is a metallized foil travelling in a travelling direction. The device comprises a housing for a first incidental beam issued from a first source of light, a second incidental beam issued from a second source of light, an optical measuring system, a photosensitive sensor respectively delivering beams reflected from the substrate and an electronic unit connected to a communication port. The optical measuring system is telecentric, the first incidental beam crosses a telecentric lighting system and the second incidental beam crosses an oblique lighting system.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- G06K Class
- 1.56 % this patent is cited more than
- 18 Age
