Engineering topics
Publications and source records attributed to Hoover, R. B..
Schwerd color drawings of amplitude and intensity distributions of Fraunhofer diffraction patterns, verifying accuracy with computer generated diffraction plate photographs
Diffraction plates for classroom demonstrations of Fraunhofer patterns, Babinet principle and Rayleigh resolution by computer generation
Extended source Fourier transform holography for single image synthesis of multiple identical images produced by multiple pinhole camera in X ray astronomy
Fresnel plate demonstrates diffraction phenomena simply and inexpensively. A large number of identical diffracting apertures are made in random orientation on photographic film. When a small source of light is viewed through the plate, the diffraction pattern typical of the diffracting aperture is readily seen.