Distance measurement instrument

Filing Information

• Publication Number: US20080024754
• Application Number: US11881656
• Filing date: 07/26/2007
• Publication date: 01/31/2008
• Predicted expiration date: 07/26/2027

• U.S. Classifications: 356/401  ·
• International Classifications: G01C308 ·
• Foreign Priority: DE102006034926.1 - 07/28/2006 ·
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  USPTO  ·  PAIR  ·  esp@cenet  ·  Patent Family

Patent Family

Abstract

A distance measurement device which has a lighting unit, including transmission optics with light beam forming optics. Illumination patterns are formed on objects in the measurement area which differ depending on the distances from the measurement device. A light receiving unit is arranged adjacent the lighting unit and generates an image of the illuminated object via receiving optics. A detector array is located in the image plane of the receiving optics which converts the optical image into corresponding electrical signals. The signals from the detector area are forwarded to a signal processing unit that is capable of generating information concerning the distance between the object and the distance measurement device from the detected illumination pattern and the signals generated by the detector.

Independent Claims | See all claims (7)

1. 1. An optoelectronic distance measurement device comprising a lighting unit including a light source and transmitting optics for directing light from the source to an object in a measurement area, the transmitting optics including beam forming optics causing the formation of different illumination patterns on the object at different distances from the measurement device, a light receiver including light receiving optics and a light detector array, the light receiving optics forming an image of the object in the measurement area on the light detector array, the light detector array generating signals caused by the image of the object, the light transmitting optics including beam forming optics which cause the formation of different illumination patterns on the object at different distances from the measurement device, and a signal processor receiving the signals and therewith generating information from the image patterns concerning the distance between the object and the distance measurement device.