This paper discusses axial holographic speckle screens for projecting images recorded in a volume photosensitive material based on dichromated gelatin. It is shown that, when speckle screens are recorded with radiation in the sensitivity region of dichromated gelatin at a wavelength of 442 nm, it is possible to reconstruct images with radiation of another region of the spectrum, including with white light. The projective properties of the screens are investigated, and the effect of light concentration by means of the screen in the region of the visibility zone is demonstrated.
N. M. Ganzherli, Yu. N. Denisyuk, I. A. Maurer, and D. F. Chernykh, "Projective properties of holographic speckle screens," J. Opt. Technol. 73, 442-444 (2006)