Effect of Wavelength.avi
2017-10-24T21:03:50Z (GMT) by
This video demonstrates the expected wavelength dependency of the Fresnel segments. The largest diffraction angle results at wavelengths that cause the Fresnel segments to be different by phase difference of a half wave. In our design we have chosen the minimum size of the Fresnel segments sufficiently large that the diffraction angle at worse case is likely unobservable by human eye.