Device to determine the shape of pane-shaped objects

Details Device to determine the shape of pane-shaped objects Device to determine the shape of pane-shaped objects

1996-10-23

1998-09-29

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356385, G01B 1124

Patent

active

058152733

ABSTRACT:
A device for determining the shape of pane-shaped objects (1), particularly thermal window panes, has a support device which a pane-shaped object (1) abuts, optical sensors (7), a conveyor device (4, 5, 6) to move a pane-shaped object (1) and optical sensors (7) relative to one another, and a device for determining the travel path. There are multiple optical sensors (7) which are arranged in at least one row (3), where this row (3) is oriented parallel to the plane of pane-shaped object (1), as well as at an angle to the direction of travel (X). Optical sensors (7) which are arranged in one row (3) are reflected-light barriers. Light rays are reflected in the area of an object (1) (up to the edge of the object (9)) but not past to it, so that the Y-coordinate of a point on the object (9) is determined by the transition from reflection to non-reflection at sensor (7).

REFERENCES:
patent: 3566135 (1971-02-01), Mouchart
patent: 3724958 (1973-04-01), Callan
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patent: 4912337 (1990-03-01), Wilwerding
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patent: 5373363 (1994-12-01), Kobayashi
patent: 5448078 (1995-09-01), Nakazawa
German Book: C. Reuber (Publ.): Handbook of Information Technology and Electronics, vol. 8: Sensors and Converter Components, Huethig Verlag, Heidelberg, 1989, pp. 171-174. (no month).

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