Method for making a smooth, uniform image of a laser diode array

Abstract From the Canadian patent

Abstract of the Disclosure, Phase array apparatus for use with a lens system to provide a substantially smooth `uniform image, of a laser array comprised of a multiplicity of lasers wherein the phase of the radiation emitted by he lasers alternates by an amount which is substantially equal to 180°. The phase array includes: (1) phase means disposed substantially at a far-field image of the laser array formed by the lens system, which far-field image comprises two prominent lobes, for changing the phase of the radiation in the two prominent lobes by 90° with respect to the phase of the remaining radiation in the far-field image in order to convert the near-field image of the laser array into …