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Measuring of wavefront 2D/3D
-variable setup
for varied specimen
-cost effective
system solution
-motorized,
software driven measuring procedure
-user friendly software

 
Measuring
principle
The WFM is a
scanning wavefront-measurement system. The wavefront, induced by the
specimen is scanned by a motor driven pinhole.
The
ilumination unit generates a spherical wave on the object side image
plane of the specimen.
The lens under
test converts the spherical wave ideally to a plane wave in it's
image plane.
A telescope
with high resolution electronic image evaluation software detects
the direction of ray in each measuring point. All measured ray
directions aur used by the evaluation software to reconstruct the
waveplane. In principle the waveplane can be measured in one section
(2D) or in a lattice pattern (3D).
Depending on
model (2D or 3D) the result is a 2D or 3D wavefrontdeformation
related to a target value.
The complete
measuring procedure is motorized and software driven.
The evaluation
software offers several options for processing, presentation and
saving of the achieved results.
The advantage
of this equipment is it's variabillity. Lot of parameters can be
adapted to fit the specimen options.
The main focus
on development of WFM was a cost effective setup combined with a
traceable measuring principle to get reliable results. |