The Shear Plate or Collimation Tester is an extremely
simple means to test the collimation of light beams especially from laser
sources.
![Shear Plate Collimation Tester](prd/shear-plate-collimation-tester.jpg)
Shear
plates are ideally suited to determine the proper adjustment for a laser
collimation system. They can also be used to measure wavefront radius of
curvature, determine wavefront symmetry, measure the power of
long-focal-length optics and in some cases analyze wavefront aberrations.
Model CMT-50 : 50 mm Clear Aperture (4-5 Fringes observation)
Sturdy Aluminium enclosure