Light curtain device

BS Chen, RA Alderman - US Patent 6,354,716, 2002 - Google Patents
The following summary of the invention is provided to facilitate an understanding of Some of
the innovative fea tures unique to the present invention and is not intended to be a full …

Light sensor for web-guiding apparatus

MM Haque, D Winter, D Hueppelsheuser… - US Patent …, 2001 - Google Patents
(57) ABSTRACT A Sensor System for determining the position of at least one edge of a web
of material traveling along a predetermined path. The Sensor System has a transmitter …

Method and system for detecting the position of an edge of a web

RA Buisker, A Kalnajs - US Patent 7,075,099, 2006 - Google Patents
A method and system for determining the lateral position of an edge of a web are disclosed.
The system includes an array of light transmitting elements and a corresponding array of …

Method and device for detecting the position of the edge of a moving material web

G Alt, G Brunner, H Häussler, H Seibold - US Patent 6,348,696, 2002 - Google Patents
(57) ABSTRACT A method for detecting the position of the edge of a moving material web by
contactlessly Scanning the material web with a row of Sensors. The Sensors generate …

Optoelectronic sensor for recognizing object edges

G Merettig, R Bergbach, M Schonstein, I Horsch… - US Patent …, 2017 - Google Patents
An optoelectronic sensor for recognizing object edges of objects comprises at least three
light transmitters which are arranged Such that at least two different spacings result between …

Light barrier arrangement

V Rohbeck - US Patent App. 11/702,169, 2007 - Google Patents
(57) ABSTRACT A light barrier arrangement for detecting objects in an area to be monitored
includes a transmitting unit comprising a predetermined number of transmitters which emit …

Device for detecting the location of an edge of a transparent material, web edge control and printing press

KW Peter, RJ Spilz, P Metzler, S Theden - US Patent 6,734,449, 2004 - Google Patents
In contrast to this Suggestion, the task of the invention is to configure a device for detecting
the location of an edge of a transparent, anisotropic material that does not require assembly …

Method and system for detecting the position of an edge of a web

RA Buisker, A Kalnajs - US Patent 7,411,206, 2008 - Google Patents
A method and system for determining the lateral position of an edge of a web are disclosed.
The system includes an array of light transmitting elements and a corresponding array of …

Method and system for detecting the position of an edge of a web

RA Buisker, A Kalnajs - US Patent 7,372,061, 2008 - Google Patents
A method and system for determining the lateral position of an edge of a web are disclosed.
The system includes a plurality of optical transmitters, a plurality of optical receivers, a …

Arrangement and method for contactless determination of a dimension of a moving web

H Krauthäuser - US Patent 11,243,174, 2022 - Google Patents
The invention relates to an arrangement for contactless determination of at least one
dimension of a moving material web, in particular a material web of opaque material, with a …