Method and device for determining the absolute coordinates...

Details Method and device for determining the absolute coordinates... Method and device for determining the absolute coordinates...

2005-04-05

2005-04-05

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Shape or surface configuration

Triangulation

C356S602000, C356S616000

Reexamination Certificate

active

06876458

ABSTRACT:
In a method for determining the absolute coordinates of an object (1), the object (1) is exposed to light (3) through a projection grid (2). The light (4) reflected by the object1is registered by a sensor (5). The image picked up by 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) which differs from said first grid vector. The sensor (5) is arranged at a distance (b) from the projection grid (2) such that the projections (bx, by), of the base vector (b) leading from the first and from the second grids to the sensor (5), onto the associated grid vectors (G1, G2) differ in size.

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