Cylindrical device for optical quality control of a strip-like material
OwnerUrsula Hamedat-Schumacher, Thomas Ischdonat +1inventors
InventorsUrsula Hamedat-Schumacher, Thomas Ischdonat, Heinz-Wilhelm Dederichs
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Abstract
The invention is for a device for sensing radiation directed from a radiation source on a travelling strip-like sample and radiation reflected from or transmitted through the sample with a rotary cylindrical roller having at least one radiation-transparent sensing point at the periphery of the roller, a central radiation-transparent decoupling point at one end and a central radiation-transparent point at the other end. Inside the roller, there are light guides to guide the radiation from the coupling point to the sensing point(s) and from there to the decoupling point.
Claims14
A device for sensing radiation directed from a radiation source onto a moving strip-like sample and for sensing radiation reflected from or transmitted through the said sample comprising:
- a rotary cylindrical roller having an end portion, an inside portion and a periphery;
- said periphery contacting said strip-like sample in a manner whereby movement of the said strip-like sample causes corresponding rotation of the said rotary roller;
- said periphery having at least one radiation-transparent sensing point located thereon;
- said end portion having at least one central radiation-transparent decoupling point;
- and
- a means located in said inside portion of the roller for the transmission of radiation from said sensing point to said decoupling point.
Dependencies are inferred from the claim text.