Device and method for optical distance measurement

US7221435B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Joerg Stierle · Waldenbuch, DE
• Peter Wolf · Wiesbaden, DE
• Kai Renz · Echterdingen, DE

Key dates

• Filing date: May 19, 2003
• Grant date: May 22, 2007
• Expiry date: Aug 27, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S7/4813
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a device for optical distance measurement, in particular a handheld device, having at least one light source (50, 52), disposed in a housing (10) of the device, for generating an optical measurement signal, and having a first user input unit (12) with at least one user control function (24) for emitting a modulated, optical measurement signal for the sake of a distance measurement.According to the invention it is proposed that the device has at least one further user input unit (18) for emitting an optical signal (42).The invention furthermore relates to a method for optical distance measurement, in particular a method for optical distance measurement by means of a handheld measuring device, in which via the actuation of a first user input unit (12), a light source (50, 52) disposed in a housing (10) of the measuring device, a modulated optical measurement signal (42) is emitted in the direction of a target object (46) whose distance from the measuring device is to be ascertained, in which by the actuation of at least one further user input unit (18), the light source (50, 52) disposed in the measuring device can be switched on and/or off.