title: Color image projection based on Fourier holograms.
abstract: A method of color image projection is experimentally validated. It assumes a simultaneous illumination of a spatial light modulator (SLM) with three laser beams converging in a common point on a projection screen. The beams are masked with amplitude filters so that each one illuminates one third of the area of the SLM. A Fourier hologram of a chosen color component of an input image is calculated, and its phase pattern is addressed on a corresponding part of the SLM area. A full-color flat image is formed on the screen as a result of color mixing. Additional techniques of image optimization are applied: time-integral speckle averaging and an off-axis shift of a zero-order peak. Static and animated experimental results of such a color holographic projection with a good image quality are presented.
authors.affiliation: Faculty of Physics, Warsaw University of Technology, 75 Koszykowa, 00-662 Warsaw, Poland. michal.makowski@if.pw.edu.pl
authors.forename: Michal
authors.initials: M
authors.lastname: Makowski
authors.forename: Izabela
authors.initials: I
authors.lastname: Ducin
authors.forename: Maciej
authors.initials: M
authors.lastname: Sypek
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Siemion
authors.forename: Andrzej
authors.initials: A
authors.lastname: Siemion
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Suszek
authors.forename: Andrzej
authors.initials: A
authors.lastname: Kolodziejczyk