Patent · US Active

Device and method for optical distance measurement

US7728957B2 · kind B2 · utility

5Cited by

7References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bjoern Haase · Stuttgart, DE
Joerg Stierle · Waldenbuch, DE
Peter Wolf · Wiesbaden, DE
Cedric Pahud · Morges, CH
Kai Renz · Echterdingen, DE
Clemens Schulte · Stuttgart, DE

Key dates

Filing date	Jul 1, 2005
Grant date	Jun 1, 2010
Priority date	—
Expiry date	Jul 22, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/48
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a device for optical distance measurement, in particular a device functioning in accordance with the phase measurement principle, having at least one transmission unit (12) equipped with at least one light source (22, 24) for transmitting modulated optical measurement radiation (16) toward a target object (20), and having a reception unit (18) for receiving the optical measurement radiation (17) returning from the target object (20).According to the present invention, the device has means (51, 55, 68) that enable a measurement of distances from a target object (20′) by means of a triangulation method.The invention also relates to a method for optical distance measurement in which it is possible to switch back and forth between a phase measurement method for determining a distance of a distance measuring device from a target object (20, 20′) and a triangulation method for determining this distance.

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