Patent · US Expired

Opto-electronic sensor

US6091071A · kind A · utility

37Cited by

7References

42Claims

0Family size

Assignee

SICK AG · DE

Inventors

Thomas Franz · North Canton, US
Gerhard H. Alt · Waldkirch, DE
Guenter Hirt · Haßlach, DE
Daniel Kietz · Riegel, DE

Key dates

Filing date	Apr 18, 1997
Grant date	Jul 18, 2000
Priority date	—
Expiry date	Apr 18, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG01V8/14
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An opto-electronic sensor for recognizing transparent articles, such as, for example, glass bodies, plastic bodies, or foils. The sensor includes at least one transmitter for transmitting light signals into a monitored region, at least one receiver for receiving the transmitted light signals, and at least one evaluation unit for the evaluation of the received signals. The transmitter is designed for the transmission of the light signals in the UV range. At least one reference transmitter is provided for the transmission of light signals into the monitored region. The light signals transmitted by the reference transmitter lie in a different frequency range from the light signals transmitted by the transmitter.

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