Patent · US Expired

Device and method for optoelectronically identifying the displacement and/or position of an object

US7280714B2 · kind B2 · utility

1Cited by

2References

22Claims

0Family size

Assignee

Mechnlesm Systems GmbH · DE

Inventors

Gerd Reime · Finnentrop, DE
Peter Langer · Munich, DE
Michael Domokos · Hennef (Sieg), DE

Key dates

Filing date	Mar 11, 2003
Grant date	Oct 9, 2007
Priority date	—
Expiry date	May 23, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH03K17/943
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a device and a method for optoelectronically identifying the displacement and/or position of an object. According to the method, a transmitter element emits light, which is received by at least one receiver element and the light emitted from the transmitter element is scattered by an object, wherein an optical guide is provided between the transmitter element and the receiver element. This aim of the invention is to fulfill the prerequisites for a key construction, which can be operated below a sealed surface. To achieve this, the optical guide includes light coupling means for coupling in the illumination that has been scattered by the object and previously emitted by the optical guide.

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