A metamaterial optical filter including: a transparent substrate; and a photosensitive polymer layer provided to the transparent substrate, wherein the photosensitive polymer layer is treated using a laser to form a non-conformal holographically patterned subwavelength grating, the holographic grating configured to block a predetermined wavelength of electromagnetic radiation. A system and method for manufacturing holographically patterned subwavelength grating onto the photosensitive polymer layer including: applying a photosensitive polymer layer to a transparent substrate; placing the photosensitive polymer layer between a laser and a mirror; scanning the laser over the photosensitive polymer layer such that a holographic grating is created within the photosensitive polymer layer by interaction between the laser light and light reflected from the mirror; and stacking two or more holographically patterned subwavelength grating layers to form complex metamaterial optical filter stacks.

Systems, devices, and methods for eyebox expansion in wearable heads-up displays (WHUD) are described. A WHUD includes a support structure, a scanning laser projector (SLP), a split mirror, an optical splitter, and a holographic combiner. When the WHUD is worn on the head of a user the holographic combiner is positioned in a field of view of the user. The SLP scans light signals onto the split mirror which reflects the light signals onto the optical splitter. The optical splitter redirects the light signals towards the holographic combiner such that subsets of the light signals originate from spatially-separated virtual positions. The holographic combiner redirects the light to the eye resulting in spatially-separated exit pupils. The spatial separation of the exit pupils results in an expanded eyebox. The indirect path of light from SLP to optical splitter enables a smaller and therefore more aesthetically desirable design for the WHUD.

A novel vehicle onboard holographic communication system is configured to generate, manage, and display various three-dimensional holographic objects, holographic digital assistance, and dynamically-updatable holographic contents in automotive infotainment, vehicle control, and occupant communication environments. Preferably, the vehicle onboard holographic communication system includes a vehicle infotainment hardware module, a vehicle infotainment operating system (e.g. Apple CarPlay, Android Auto, etc.) and a vehicle onboard holographic communication operating system (e.g. HoloDash OS) executed in a CPU and a memory unit of the vehicle infotainment hardware module, and a holographic display pod integrated into a vehicle dashboard or another part of the vehicle interior. The in-vehicle holographic display pod provides lifelike high-resolution 3D holographic objects for vehicle occupant infotainment, vehicle control, and communication applications. Furthermore, the vehicle onboard holographic communication system allows in-vehicle holograms to receive and interpret driver or passenger gesture commands with embedded sensors, which enable bilaterally-interactive experiences with the in-vehicle holograms.

There is provided a holographic security element including a substrate; and an array of nano-reflectors configured to form a pattern on the substrate and to generate a holographic image corresponding to the pattern at a predetermined distance from the substrate when irradiated with a predetermined light source. In particular, the array of nano-reflectors is configured to generate the holographic image at the predetermined distance to have a size that is larger than a size of the pattern. There is also provided a method of forming the holographic security element, and an article having one or more holographic security elements incorporated therein.

Systems, methods, and devices are provided relating to far field hologram viewing devices. A method of designing and manufacturing a far field hologram is provided. Holographic light patterns with minimal spurious pixel errors in the hologram response may be produced without requiring a tight tolerance on the relative positions of the hologram and an observer's eye. Far field viewing devices, and methods for making the same, that employ multiple unit holograms each having differing noise characteristics that superpose in a way to reduce the effects of spurious pixel errors while maintaining good overall noise performance.

Holographic polymer dispersed liquid crystal material systems in accordance with various embodiments of the invention are illustrated. One embodiment includes a holographic polymer dispersed liquid crystal formulation, including monomers, photoinitiators, and a liquid crystal mixture including terphenyl compounds and non-terphenyl compounds, the liquid crystal mixture having a ratio of at least 1:10 by weight percentage of the terphenyl compounds to the non-terphenyl compounds, wherein the photoinitiators are configured to facilitate a photopolymerization induced phase separation process of the monomers and the liquid crystal mixture. In another embodiment, the liquid crystal mixture further includes pyrimidine compounds, and wherein the liquid crystal mixture has a ratio of at least 1:10 by weight percentage of the terphenyl compounds and pyrimidine compounds to the non-terphenyl compounds. In a further embodiment, the ratio of the terphenyl compounds to the non-terphenyl compounds is at least 1.5:10.

A device for producing a subwavelength hologram. The device comprises a metasurface layer attached to a substrate. The metasurface layer includes an array of plasmonic antennas that simultaneously encode both wavelength and phase information of light directed through the array to produce a hologram. The wavelength is determined by the size of the antennas, and the phase is determined by the orientation of the antennas.

A fingerprint sensor integrated display using a holographic optical element and a recording and reconstruction method of the holographic optical element are disclosed. The fingerprint sensor integrated display includes a display panel on which an input image is displayed, a transparent substrate disposed on the display panel, and a light entering element configured to irradiate light from a light source onto the transparent substrate. A particular type of visual information is reconstructed through a holographic element at a location of the light entering element.

An interactive 3D display apparatus and method are provided. The interactive 3D display apparatus includes a hand sensing module configured to acquire a hand image by detecting a hand of a user and a user interaction module configured to generate a virtual object adjustment parameter by analyzing user-intended information about the hand based on the hand image acquired by the hand sensing module and comparing an analysis result with predefined user scenarios, an image rendering module configured to set a scene according to the generated virtual object adjustment parameter, generate image data by rendering the set scene, and convert the generated image data into display data, and a 3D display configured to display a 3D image including a virtual object in which a change intended by the user has been reflected according to the display data.

The present invention provides a means for suppressing an occurrence of a ghost by enhancing diffraction efficiency of a holographic optical element having a volume hologram recording layer. The present invention is a holographic optical element including: a volume hologram recording layer containing a photopolymer; and at least one adjacent layer which is in contact with the volume hologram recording layer and contains a resin, wherein a diffraction grating is formed so as to extend from the volume hologram recording layer to the adjacent layer.