Patent · US Expired

Device for generating an electrical control signal according to the position of a light beam

US6297487A · kind A · utility

1Cited by

1References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Albrecht Kuke · Auenwald, DE
Eberhard Moess · Murrhardt, DE
Bernhard Schwaderer · Rutesheim, DE
Klaus Hirche · Waiblingen, DE
Werner Scholz · Duisburg, DE
Martin Warth · Winnenden, DE

Key dates

Filing date	Oct 22, 1999
Grant date	Oct 2, 2001
Priority date	—
Expiry date	Oct 22, 2019

Classification

Technology area (CPC H)Electricity
CPC primaryH04B10/11
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The device for generating an electrical control according to a position of a light beam in relation to a separating line includes two photodetectors (14,24), one (14) of which is arranged for detecting light falling on one side of the separating line and another (24) of which is arranged for detecting light falling on another side of the separating line. The separating line is an edge (30) extending between two (1,1,1) crystallographic planes of a crystalline substrate and the (1,1,1) crystallographic planes reflect respective parts of the light beam to the respective photodetectors.

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