Module for a laser measuring device

US7297913B2 · kind B2 · utility

Assignee

• Diehl BGT GmbH & Co. KG · DE

Inventors

• Hans Dieter Tholl · Überlingen, DE
• Rainer Baumann · Liestal, CH
• Joachim Barenz · Überlingen, DE

Key dates

• Filing date: Apr 8, 2005
• Grant date: Nov 20, 2007
• Expiry date: Aug 23, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/89
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a compact laser measuring device with a high level of transmission power the problem arises of the laser detector being dazzled by unwanted stray light.To resolve that problem there is provided a module (2) for a laser measuring device (4) which includes a laser source (6, 36), a transmission light guide (8, 38a-d) optically connected to the laser source (6, 36), a laser detector (10), a reception light guide (12) optically connected to the laser detector (10), a transmission reception light guide (16, 42a-d, 54) and a coupling element (14, 40a-d) which optically connects the transmission reception light guide (16, 42a-d, 54) to the laser source (6, 36) and the laser detector (10), wherein the transmission reception light guide (16, 42a-d, 54) is operatively connected to a light amplifier element (22).