Apparatus for horizontally scanning an image corresponding to electronic video input information utilizing a Bragg Diffraction cell in which collimated light from a laser directed through the cell is modulated by a real-time fourier transform of a line of video input information, thereby to produce a...http://www.google.se/patents/US5303043?utm_source=gb-gplus-sharePatent US5303043 - Projection television display utilizing Bragg diffraction cell for producing horizontal scan
