The present invention is directed to a calibration block for use in calibrating a 3D scanner.

The calibration block has a particular shape and also includes a camera calibration grid.

Further more, a scanner system having two cameras, a laser generator and the calibration block is defined.

A calibration block and an adjustable zero block which may be used to prepare the measuring device for taking gap and contour measurements are also disclosed.

The present invention is directed to a calibration block for use in calibrating a 3D scanner.

The calibration block has a particular shape and also includes a camera calibration grid.

Further more, a scanner system having two cameras, a laser generator and the calibration block is defined.

A calibration block and an adjustable zero block which may be used to prepare the measuring device for taking gap and contour measurements are also disclosed.

In lieu of such beamsplitters, a glass prism block is used having two 90 degree prisms and an etalon.

the monetary unit is neither a stable nor an international standard

The etalon (12) can be a reflective etalon (29) or in an alternate embodiment (60), can be a transmissive etalon (29).

A size standard, kit including a size standard, method of defining a size standard and method of analysis using a size standard are provided.

The reference standard instrument shall be fully calibrated at yearly intervals in accordance with a national standard.

The only significant difference between the dollar/euro currency bloc and the prior world currency bloc based on gold is the standard of value: gold, or the floating fiat currency.

The reference standard instrument shall be fully calibrated at yearly intervals in accordance with a national standard.