562results about "Holographic optical components" patented technology

A display system 700 comprising a replicator and a light control device 706, 706’. The replicator receives spatially modulated light, waveguides the light between a reflective surface and a transmissi

A display system includes a replicator and a light control device 1000. The replicator receives spatially modulated light and replicates the light to form multiple replicas by waveguiding between a re

Methods, apparatus, devices, subsystems, and systems for holographically displaying three-dimensional objects are provided. In one aspect, an optical device includes: a first optically diffractive component including a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle, a second optically diffractive component including a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle, a first reflective layer configured to totally reflect the first color of light having the first incident angle and transmit the second color of light, and a second reflective layer configured to totally reflect the second color of light having the second incident angle. The first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers.

Methods, apparatus, devices, subsystems, and systems for holographically displaying live scenes including one or more three-dimensional (3D) objects are provided. In one aspect, a system includes a holographic capturing system and a holographic display system. The holographic capturing system includes: an optical system configured to generate an optical hologram of a live scene that comprises one or more three-dimensional (3D) objects, and an optical sensor configured to capture sequential optical holograms of the live scene and output sequential hologram data associated with the sequential optical holograms of the live scene, each optical hologram being associated with respective hologram data. The holographic display system is configured to optically reconstruct the live scene in a 3D space based on at least part of the sequential hologram data.

A transmission coating for a waveguide is formed with multiple layers. There are steps of a) determining a first coating parameter and a coating function for each layer -3000, b) forming the multiple

A display system is provided The display system comprises a replicator arranged to receive spatially modulated light and replicate the spatially modulated light to form a plurality of replicas of the spatially modulated light by waveguiding between a reflective surface and a transmissive-reflective surface. The transmissive-reflective surface forms an output surface for the plurality of replicas of the spatially modulated light. The display system further comprises a light control device located in the optical path of the plurality of replicas of the spatially modulated light downstream from the output surface of the replicator. The light control device is arranged to compensate for the curvature of an curved optical component downstream from the light control device. The compensation is a function of the position on the output surface.

A static-image augmented privacy display, mode-switchable privacy display system, and method provide a private image to a first view zone and a static image to a second view zone. The static-image augmented privacy display includes a privacy backlight configured to provide directional emitted light to the first view zone and an array of light valves configured to modulate the directional emitted light to provide a private image within the first view zone. The static-image augmented privacy display also includes a static display layer configured to provide a static image in a second view zone. The mode-switchable privacy display includes a broad-angle backlight configured to provide broad-angle emitted light to both a first view zone and a second view zone during a shared mode, a shared image being provided by modulation of the broad-angle emitted light using the light valve array.

Holographic volume gratings in waveguide cells can be recorded using many different methods and systems in accordance with various embodiments of the invention. One embodiment includes a holographic recording system including at least one laser source configured to emit recording beams and a movable platform configured to move between a first position and a second position, wherein when the movable platform is in the first position, the at least one laser source is configured to emit a first set of one or more recording beams toward a first set of one or more stations and when the movable platform is in the second position, the at least one laser source is configured to emit a second set of one or more recording beams toward a second set of one or more stations.

Mastering systems and methods of fabricating waveguides and waveguide devices using such mastering systems are described. Mastering systems for fabricating holographic waveguides can include using a master to control the application of energy (e.g. a laser, light, or magnetic beam) onto a liquid crystal substrate to fabricate a holographic waveguide into the liquid crystal substrate. Mastering systems for fabricating holographic waveguides in accordance with embodiments of the invention can include a variety of features. These features include, but are not limited to: chirp for single input beam copy (near i.e. hybrid contact copy), dual chirped gratings (for input and output), zero order grating for transmittance control, alignment reference gratings, 3:1 construction, position adjustment tooling to enable rapid alignment, optimization of lens and window thickness for multiple RKVs simultaneously, and avoidance of other orders and crossover of the diffraction beam.

The present invention relates to systems and methods for high throughput recording of holographic gratings in waveguide cells, wherein a number of different methods and systems can be used to record holographic volume gratings in waveguide cells. One embodiment includes a holographic recording system comprising at least one laser source configured to emit a recording beam, and a movable platform configured to move between a first position and a second position, wherein when the movable platform is in the first position, the at least one laser source is configured to emit a first set of one or more recording beams toward a first set of one or more stations, and when the movable platform is in the second position, the at least one laser source is configured to emit a second set of one or more recording beams toward a second set of one or more stations.

A display system is provided. The display system comprises a replicator arranged to receive spatially modulated light and replicate the spatially modulated light to form a plurality of replicas of the spatially modulated light by waveguiding between a reflective surface and a transmissive-reflective surface. The transmissive-reflective surface forms an output surface for the plurality of replicas of the spatially modulated light. The display system further comprises a light control device located in the optical path of the plurality of replicas of the spatially modulated light downstream from the output surface of the replicator. The light control device is arranged to provide a first compensation for the curvature of a curved optical component downstream from the light control device. The first compensation is a function of the position on the output surface and is arranged to only partially counteract the curvature of the optical component and retain some distortion from the curvature of the optical component of at least one of the replicas compared to another of the replicas.

Methods, apparatus, devices, and systems for displaying three-dimensional objects by individually diffracting different colors of light are provided. In one aspect, an optical device includes: a first optically diffractive component including a first diffractive structure configured to diffract a first color of light having a first incident angle at a first diffracted angle, a second optically diffractive component including a second diffractive structure configured to diffract a second color of light having a second incident angle at a second diffracted angle, a first reflective layer configured to totally reflect the first color of light having the first incident angle and transmit the second color of light, and a second reflective layer configured to totally reflect the second color of light having the second incident angle. The first reflective layer is between the first and second diffractive structures, and the second diffractive structure is between the first and second reflective layers.

A display system comprises a replicator arranged to receive spatially modulated light and replicate the spatially modulated light to form a plurality of replicas of the spatially modulated light by waveguiding between a reflective surface and a transmissive-reflective surface, which forms an output surface for the plurality of replicas of the spatially modulated light. The display system further comprises a light control device located in the optical path of the plurality of replicas of the spatially modulated light downstream from the output surface of the replicator, arranged to provide a first compensation for the curvature of a curved optical component downstream from the light control device. The first compensation is arranged to only partially counteract the curvature of the optical component and retain some distortion from the curvature of the optical component of at least one of the replicas compared to another of the replicas.

A display device includes a display array comprising a plurality of binary pixels, each binary pixel comprises at least one light source with two light source modulating pixels configured to form three or more binary patterns. A device further includes a first layer above the at least two light source modulating pixels, the first layer comprises a light diffraction material across the binary pixel, wherein the light diffraction material is configured to cause a first modification of a first binary pattern to output a first light, cause a second modification of a second binary pattern to output a second light, and cause a third modification of a third binary pattern to output a third light, wherein the first, second and third output light have substantially different visual characteristics.

Mastering systems and methods of fabricating waveguides and waveguide devices using such mastering systems are described. Mastering systems for fabricating holographic waveguides can include using a master to control the application of energy (e.g. a laser, light, or magnetic beam) onto a liquid crystal substrate to fabricate a holographic waveguide into the liquid crystal substrate. Mastering systems for fabricating holographic waveguides in accordance with embodiments of the invention can include a variety of features. These features include, but are not limited to: chirp for single input beam copy (near i.e. hybrid contact copy), dual chirped gratings (for input and output), zero order grating for transmittance control, alignment reference gratings, 3: 1 construction, position adjustment tooling to enable rapid alignment, optimization of lens and window thickness for multiple RKVs simultaneously, and avoidance of other orders and crossover of the diffraction beam.

Aspects of the disclosure include a method for controlling a vehicle via a holographic interface. Aspects include detecting a request, by an occupant of the vehicle, to display a holographic user interface and instructing a holographic display device to display the holographic user interface. Aspects also include detecting an interaction between the occupant and the holographic user interface, identifying a desired action for the vehicle based on the interaction, and instructing the vehicle to perform the desired action.

To provide mastering systems and methods for fabricating waveguides, and waveguide devices using such mastering systems.SOLUTION: A mastering system for fabricating holographic waveguides may employ a step of using a master to control application of energy (e.g., laser, light, or magnetic beam) onto a liquid crystal substrate to fabricate a holographic waveguide into the liquid crystal substrate. Mastering systems for fabricating holographic waveguides according to embodiments of the present invention may include a variety of features.SELECTED DRAWING: Figure 5

The invention relates to a method for holographic generation of an array of focusing points arranged according to multiple positions of the field of an optical system, which comprises: (S10) detecting images formed by the optical system at a plurality of calibration points arranged according to multiple positions of the field of the optical system; (S20) estimating aberrations introduced by the optical system onto the optical field from the detected images; (S30) applying a phase mask to the optical beam in order to generate a plurality of focusing points arranged according to multiple positions in the field of the optical system; wherein the phase mask is calculated from the estimated aberrations in order to simultaneously compensate for the aberrations at each focusing point. The invention also relates to a holographic generation system which carries out this method.

Improvements to gratings for use in waveguides and methods of producing them are described herein. Deep surface relief gratings (SRGs) may offer many advantages over conventional SRGs, an important one being a higher S-diffraction efficiency. In one embodiment, deep SRGs can be implemented as polymer surface relief gratings or evacuated periodic structures (EPSs). EPSs can be formed by first recording a holographic polymer dispersed liquid crystal (HPDLC) periodic structure. Removing the liquid crystal from the cured periodic structure provides a polymer surface relief grating. Polymer surface relief gratings have many applications including for use in waveguide-based displays.

A method of making a thin waveguide illumination system using side-emitting LED packages is disclosed. The method includes providing an optically transmissive sheet with first and second broad-area surfaces, a light coupling area near the first edge, and a two-dimensional light extraction area on at least one of these surfaces. This light extraction area includes a plurality of light extraction elements with variable density. An LED strip having a heat-conducting printed circuit and a linear array of side-emitting LED packages is positioned parallel to the first edge at or near the first edge, with the major surface of the heat-conducting printed circuit extending generally parallel to the first and second broad-area surfaces. A broad-area reflector is positioned parallel to the second broad-area surface of the sheet. The density of the light extraction elements within the two-dimensional light extraction area increases with distance from the light coupling area.

A system includes a light outputting element configured to output a first beam propagating toward a beam interference zone from a first side of the beam interference zone. The system also includes a reflective assembly configured to reflect the first beam back as a second beam propagating toward the beam interference zone from a second side of the beam interference zone. The first beam and the second beam interfere with one another within the beam interference zone to generate a polarization interference pattern.

A display device including a first non-folding area, a second non-folding area, a third non-folding area, and a fourth non-folding area, and is that configured to be in-folded based on folding lines between the first non-folding area, the second non-folding area, the third non-folding area, and the fourth non-folding area, the display device including: a display panel including a light transmission display area in a portion of the first to third non-folding areas, and a light blocking display area in remaining areas of the first to third non-folding areas; a light transmission control layer in the light blocking display area; and a main processor configured to control the light transmission control layer and the display panel, wherein the main processor is configured to output a flat image in a first mode and to display a hologram image in a second mode.

An optical system with a viewing window has a display device arranged to spatially modulate light in accordance with a hologram displayed thereon to form a holographic wavefront. The holographic wavef

A method of producing a holographic plate (2) comprising the steps of providing a photosensitive material (20) in a recording plane (19) and illuminating the recording plane (19) with a radiation of a light source (3) to produce a holographic pattern (15) is specified, wherein the radiation of the light source is split into a reference radiation (31) and an object radiation (32), wherein the reference radiation (31) runs through a reference arm (11), wherein the object radiation (32) runs through an object arm (12), wherein an object phase modulator (35) is arranged in the object arm (12), wherein the object radiation (32) and the reference radiation (31) interfere in the recording plane (19) and wherein a diffusing element (4) which is imaged onto the recording plane (19) is arranged in the reference arm (11) or in the object arm (12) between the object phase modulator (35) and the recording plane (19). Further a holographic plate (2) and an apparatus (1) are specified.

To provide a photosensitive composition capable of further improving diffraction characteristics.The present technology provides a photosensitive composition including: at least a compound represented by the following general formula (1); a binder resin; and a photoinitiator.In the general formula (1), X1 represents an oxygen atom, a nitrogen atom, a phosphorus atom, a caron atom, or a silicon atom.Y1 and Y2 each represent a benzene ring or a naphthalene ring, and both Y1 and Y2 do not represent benzene rings.R1 to R3 each represent a hydrogen or a substituent group represented by *—Z1(R4)d (* represents a bonding site).Z1 represents a single bond, a saturated hydrocarbon group having a valence of 2 or higher, or an unsaturated hydrocarbon group having a valence of 2 or higher, and the saturated hydrocarbon group or the unsaturated hydrocarbon group may have an ether bond and / or a thioether bond.R4 represents a hydrogen or a polymerizable substituent group.

The present application relates to a method for manufacturing optical waveguides. A mastering system and methods for manufacturing waveguides and waveguide devices using such a mastering system are described. The mastering system for manufacturing holographic waveguides may include using a master to control the application of energy (e.g., laser, optical, or magnetic beams) to a liquid crystal substrate to manufacture the holographic waveguide within the liquid crystal substrate. The mastering system for manufacturing holographic waveguides according to embodiments of the present invention may include various features. These features include, but are not limited to: chirping for a single input beam replica (i.e., near hybrid contact replicas), double-chirped gratings (for input and output), a zero-order grating for transmission control, an alignment reference grating, a 3:1 configuration, a position adjustment tool to enable rapid alignment, simultaneous optimization of lens and window thicknesses for multiple RKVs, and avoidance of crossover of diffracted beams and other orders.

Mastering systems and methods of fabricating waveguides and waveguide devices using such mastering systems are described. Mastering systems for fabricating holographic waveguides can include using a master to control the application of energy (e.g. a laser, light, or magnetic beam) onto a liquid crystal substrate to fabricate a holographic waveguide into the liquid crystal substrate. Mastering systems for fabricating holographic waveguides in accordance with embodiments of the invention can include a variety of features. These features include, but are not limited to: chirp for single input beam copy (near i.e. hybrid contact copy), dual chirped gratings (for input and output), zero order grating for transmittance control, alignment reference gratings, 3:1 construction, position adjustment tooling to enable rapid alignment, optimization of lens and window thickness for multiple RKVs simultaneously, and avoidance of other orders and crossover of the diffraction beam.

The present disclosure concerns an imaging system for imaging a sample immersed in a controlled environment. The system comprises—at least one enclosure configured to hold at least one imaging sensor or camera inside the enclosure, the enclosure including at least one opening and at least one transparent window for imaging the sample; and—a flexible channel comprising a first extremity and a second extremity, the first extremity being connected to the enclosure at said at least one opening and the second extremity being configured to be connected to a wall of the hermetic chamber, the flexible channel defining or enclosing a passage extending through the flexible channel and to or into the enclosure.

A volume holographic grating, a method for formulating a grating vector distribution formulation thereof, and a method and apparatus for manufacturing the volume holographic grating. The grating vector distribution is estimated by sampling a position of an eye movement range effective region of a plurality of sub-fields of view and a grating vector, matching with Bragg diffraction conditions, of a ray thereof, without considering the diffraction of ineffective rays that ultimately enter beyond the eye movement range, such that most of the effective rays with different incident angles have higher diffraction efficiency on the volume holographic grating, which ensures the overall brightness uniformity of the output beams and extend the field of view.