Invention Grant
- Patent Title: Method and device for determining a distance from an object
- Patent Title (中): 用于确定与物体的距离的方法和装置
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Application No.: US12698473Application Date: 2010-02-02
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Publication No.: US07869005B2Publication Date: 2011-01-11
- Inventor: Martin Ossig , Philipp Schumann
- Applicant: Martin Ossig , Philipp Schumann
- Applicant Address: US FL Lake Mary
- Assignee: Faro Technologies, Inc.
- Current Assignee: Faro Technologies, Inc.
- Current Assignee Address: US FL Lake Mary
- Agency: Cantor Colburn LLP
- Priority: DE102008008063 20080201; DE102008014275 20080303
- Main IPC: G01C3/08
- IPC: G01C3/08

Abstract:
A device for determining a distance from an object may include a light emitter for emitting an emission light beam, a light receiver for receiving a reception light beam, and an evaluation unit for determining the distance on the basis of a propagation time of the emission and reception light beams. The reception light beam may arise as a result of reflection of the emission light beam at the object. The light receiver may have a reception optical unit comprising a first lens element and a pinhole diaphragm. A light-impermeable element may shade a central region of the reception optical unit in such a way that the reception light beam is incident in the form of a light ring on the pinhole diaphragm. A second lens element, which is substantially hat-shaped in cross section, is arranged between the first lens element and the pinhole diaphragm.
Public/Granted literature
- US20100195087A1 METHOD AND DEVICE FOR DETERMINING A DISTANCE FROM AN OBJECT Public/Granted day:2010-08-05
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