The invention relates to naphthyl urethane acrylates particularly useful as writing monomers in photopolymer formulations for holographic media. The invention further relates to a photopolymer formulation comprising matrix polymers, writing monomers and photoinitiators, wherein the writing monomers comprise a naphthyl urethane acrylate according to the invention, to a holographic medium comprising matrix polymers, writing monomers and photoinitiators, wherein the writing monomers comprise a naphthyl urethane acrylate according to the invention, and also to a display comprising a holographic medium according to the invention.

A matrix-array optical component that includes, superposed, a holder, a matrix-array of reflectors and at least one matrix-array of holographic lenses with the holder placed between the matrix-array of reflectors and the at least one matrix-array of holographic lenses. The holographic lenses are each formed by at least one reflection hologram, and each includes a through-aperture for letting light pass. Each individual cell of the matrix-array optical component includes one reflector of the matrix-array of reflectors and one holographic lens of the matrix-array of holographic lenses, which are arranged opposite one another on either side of the holder with respective reflective faces of the reflector and of the holographic lens located facing. Thus, a planar matrix-array optical component with a focusing efficiency higher than or equal to 50% and able to focus an incident light beam axially is produced.

The invention relates to naphthyl urethane acrylates particularly useful as writing monomers in photopolymer formulations for holographic media. The invention further relates to a photopolymer formulation comprising matrix polymers, writing monomers and photoinitiators, wherein the writing monomers comprise a naphthyl urethane acrylate according to the invention, to a holographic medium comprising matrix polymers, writing monomers and photoinitiators, wherein the writing monomers comprise a naphthyl urethane acrylate according to the invention, and also to a display comprising a holographic medium according to the invention.

An apparatus, system, and method for a hologram recording system include a recording medium, a light source, and optical elements. The recording medium is configured to record a hologram. At least one light source is configured to provide a writing beam. The optical elements are positioned in a light path of the writing beam and are configured to condition the writing beam to record the hologram at least partially in the volume. The optical elements may include at least one toric optical element and a mirror. The toric optical element may be configured to subtract a quadratic phase from a wavefront of the writing beam, and the mirror may be configured to subtract a linear phase from the wavefront of the writing beam.