New testing method for cone prism based on Hartmann-shack wavefront sensor

The quality check of the prism is very important for the measurement of optics. An accurate measurement scheme is proposed for testing the error of cone prisms with Hartmann wavefront sensor. The measurement theory was discussed, the reconstruction of the wavefront reflected from a cone prism was studied, and the relation between the wavefront characteristics and the errors of a cone prism was given. The feasibility of the method was verified in the experiment.