Laser range finder for large ranges of measurement with a special receiver

US6603534B2 · kind B2 · utility

Assignees

• JENOPTIK Laser, Optik, Systeme GmbH · DE
• Hilti Aktiengesellschaft · LI

Inventors

• Helmut Seifert · Serba, DE
• Gero Schusser · Nastätten, DE
• Ullrich Krüger · Milda, DE
• Martin Penzold · Jena, DE

Key dates

• Filing date: Oct 12, 2001
• Grant date: Aug 5, 2003
• Expiry date: Oct 12, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S7/4816
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A laser range finding device is shown which contains a transmitting channel and a receiving channel. The transmitting channel includes a transmitting lens and a laser light, which is positioned at a focal point of the transmitting lens. The receiving channel includes a receiving lens and a photodiode chip array arranged at a focal point of the receiving lens. The photodiode chip array includes a perforated shutter having at least two shutter apertures.