METHOD AND DEVICE FOR DETERMINING THE ABSOLUTE COORDINATES OF AN OBJECT

Title:

METHOD AND DEVICE FOR DETERMINING THE ABSOLUTE COORDINATES OF AN OBJECT

Document Type and Number:

WIPO Patent Application WO2003078920

Kind Code:

A3

Abstract:

Disclosed is a method for determining the absolute coordinates of an object (1), according to which the object (1) is irradiated with light (3) through a projection grid (2). The light (4) that is reflected by the object (1) is recorded by a sensor. The recording of the sensor is evaluated. In order to improve such a method, the projection grid (2) comprises a first grid with a first grid vector (G1) and a second grid with a second grid vector (G2) that is different therefrom. The sensor (5) is disposed at a distance (b) from the projection grid (2) such that the projections (bx, by) of the base vector (b) leading from the first grid and the second grid to the sensor (5) onto the corresponding grid vectors (G1, G2) have a different size.

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Inventors:

KRAUS ANTON (DE)

Application Number:

PCT/EP2003/002877

Publication Date:

February 05, 2004

Filing Date:

March 19, 2003

Export Citation:

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Assignee:

STEINBICHLER OPTOTECHNIK GMBH (DE)
KRAUS ANTON (DE)

International Classes:

G01B11/00; G01B11/25; (IPC1-7): G01B11/25

Domestic Patent References:

WO1993003579A1

1993-02-18

Foreign References:

EP0534284A2	1993-03-31
US4802759A	1989-02-07

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