A light-field display with pixel to micro-lens spatial alignment adapted color or brightness. In one embodiment, a first pixel is read from memory. A map is accessed to read a first index that is mapped to a first position of a first emitter in an array of emitters. A first correction data mapped to the first index is read. The first pixel is adjusted using the first correction data. The first emitter emits light based on the adjusted first pixel.

An optical device including a first rigid substrate, a flexible holographic optical element, a transparent flexible material having a variable shear transmission property across an in-plane direction of the flexible holographic optical element, and a second rigid substrate, wherein the flexible holographic optical element and the transparent flexible material are located between the first and second rigid substrates, wherein the variable shear transmission property of the transparent flexible material transmits variable amounts of a shear force applied to the first or second rigid substrates across the in-plane direction of the flexible holographic optical element.

The invention relates to a method for recording a plurality of scatter volume holograms in a photopolymeric recording medium, the method comprising at least the following steps providing a first laser light source, providing a photopolymeric recording medium comprising a substrate and a photoactive layer, wherein the photopolymeric recording medium has an index modulation n of at least 0.04 and a thickness d of the photoactive layer of at least 25 m, irradiating the photopolymeric recording medium with the first laser light beam generated by the first laser light source with a minimum irradiation energy dosage of 3*D.sub.i, D.sub.i; being the inhibition dosage of the photoactive layer, wherein the irradiation of the photopolymeric recording medium is performed such that the light of the irradiating first laser light beam is scattered at scattering centers, the scattering centers being generated by the chemical react ion in the photoactive layer induced by the first laser light beam thus forming a plurality of scatter volume holo grams by interaction between the irradiating first laser light beam and the scattered light of the first laser light beam.

Systems, devices, and methods for holographic optical elements are described. A holographic optical element includes a first layer of holographic material and a second layer of holographic material. The first layer of holographic material includes a first hologram responsive to light in a first waveband and a second hologram responsive to light in a second waveband. The second layer of holographic material includes a third hologram responsive to light in a third waveband and may include a fourth hologram responsive to light in a fourth waveband. The first, second, third, and fourth wavebands are distinct and may comprise light of red, blue, green, and infrared wavelengths, respectively. Distribution of the three or four holograms on two layers of holographic material allows each hologram to have an index modulation of greater than 0.016, a diffraction efficiency of greater than 15%, and an angular bandwidth of greater than 12.

Systems, devices, and methods for holographic optical elements are described. A holographic optical element includes a first layer of holographic material and a second layer of holographic material. The first layer of holographic material includes a first hologram responsive to light in a first waveband and a second hologram responsive to light in a second waveband. The second layer of holographic material includes a third hologram responsive to light in a third waveband and may include a fourth hologram responsive to light in a fourth waveband. The first, second, third, and fourth wavebands are distinct and may comprise light of red, blue, green, and infrared wavelengths, respectively. Distribution of the three or four holograms on two layers of holographic material allows each hologram to have an index modulation of greater than 0.016, a diffraction efficiency of greater than 15%, and an angular bandwidth of greater than 12.

Systems, devices, and methods for holographic optical elements are described. A holographic optical element includes a first layer of holographic material and a second layer of holographic material. The first layer of holographic material includes a first hologram responsive to light in a first waveband and a second hologram responsive to light in a second waveband. The second layer of holographic material includes a third hologram responsive to light in a third waveband and may include a fourth hologram responsive to light in a fourth waveband. The first, second, third, and fourth wavebands are distinct and may comprise light of red, blue, green, and infrared wavelengths, respectively. Distribution of the three or four holograms on two layers of holographic material allows each hologram to have an index modulation of greater than 0.016, a diffraction efficiency of greater than 15%, and an angular bandwidth of greater than 12.

A spatial modulator is provided on a plane conjugate to a sample plane on which a sample is to be placed. The spatial modulator spatially modulates illumination light irradiated to the sample 2 or object light that has passed through or that has been reflected by the sample. A dark-field optical system removes the non-scattered light component of the first object light affected by the spatial light modulator so as to generate second object light. An image sensor records a hologram based on the second object light. A calculation processing apparatus combines complex amplitude information based on the modulation pattern supplied to the spatial light modulator and complex amplitude information based on the hologram with respect to the second object light so as to acquire a phase distribution originating from the sample.

The present invention provides in one aspect holographic materials comprising a covalent adaptable networks (CAN) matrix that has exchangeable crosslinks, and at least one writing monomer, wherein upon exposure to a stimulus, the holographic material can undergo photopolymerization and serve as a recording medium.