A floating image display device includes: an image forming device configured to form a source image; a waveguide configured to output a light of the source image to another location by guiding the light; a holographic optical device provided on a proceeding path of the light output from the waveguide, the holographic optical device including a hologram pattern that diffracts incident light of a certain incident angle region output from the waveguide by a set target diffraction angle and a floating element including a plurality of corner reflectors and forming a floating image of the source image by forming an image of the light output from the holographic optical device at a certain location in mid-air.

A display device for a vehicle includes: a first display device including a reflection type hologram that is disposed on a windshield of a vehicle, and a first projection part that projects first display light toward the hologram, and displaying a first display image by diffraction light diffracted by the hologram; and a second display device including a second projection part that projects second display light toward the windshield, and displaying a second display image by reflection light reflected by the windshield. In the windshield, a first region where the first display light is incident and a second region where the second display light is incident overlap with each other, the second projection part includes a filter part that cuts light in a predetermined wavelength region from the second display light, and the predetermined wavelength region is a wavelength region of the light diffracted by the hologram.

A method for producing a curved substrate panel with a hologram includes producing a curved substrate panel from plastic by forming, injection moulding or injection-compression molding between a first mold half, which defines a predetermined desired geometry of a substrate surface, and a second mold half removing the first mold half from the second mold half and applying a holographic master to a surface of the first mold half, or of a further mold half fixing the first mold half or further mold half on the second mold half such that an empty gap of a predetermined constant thickness remains between the holographic master and the substrate surface, and filling this gap with a hologram-receiving material; and exposing the hologram-receiving layer formed between the substrate surface and the holographic master with a coherent light for forming a hologram defined by the holographic master.

Various embodiments of waveguide devices are described. A debanding optic may be incorporated into waveguide devices, which may help supply uniform output illumination. Accordingly, various waveguide devices are able to output a substantially flat illumination profile eliminating or mitigating banding effects.

An image display device includes, an imaging light generation part configured to generate an imaging light having a single color, a light-guiding plate, an incident side diffraction element provided at a light incident part of the light-guiding plate, and configured to cause the imaging light to enter the light-guiding plate, an exit side diffraction element provided at a light emitting part of the light-guiding plate, and configured to cause the imaging light propagating within the light-guiding plate to exit, and an angle dependent reflective film provided between the light-guiding plate and the exit side diffraction element, and having a reflectance varying depending on magnitude of a propagation angle of the imaging light, in which the reflectance for the imaging light propagating at a relatively small propagation angle is larger than the reflectance for the imaging light propagating at a relatively large propagation angle.

An apparatus for displaying a three-dimensional image. The apparatus includes a light source, an intensity modulator to modulate an intensity of a given light beam, a mirror device to modulate spatially the intensity-modulated light beam at a given time instant, a first optics to collimate the spatially-modulated light beam and an image waveguide comprising an in-coupling structure to receive the collimated light beam and an out-coupling structure comprising out-coupling sites. The image waveguide directs the collimated light to the out-coupling structure which selectively redirects multiple reflections towards a segmented optical structure comprising at least two types of segments to redirect a first part of the multiple reflections to form a first type image point P1 at a first focal distance d1, d1′ and a second part of the multiple reflections to form a second type image point P2 at a second focal distance d2, d2′.

In one embodiment, a device transmits data characterizing a holographic image to a physical environment. A visible rendering of the holographic image is created in the physical environment. The device uses a reasoning engine to make an inference regarding a state of the physical environment based on sensor data captured in the physical environment indicative of one or more real-time characteristics of the physical environment. In response to the inference, the device adjusts the holographic image. Then, the device transmits data characterizing the adjusted holographic image to the physical environment, and a visible rendering of the adjusted holographic image is created in the physical environment.

The present invention features new waveguide layouts for input, redirection (expansion), and output holograms that minimize cross talk between colors and allow all three colors to reside in a single waveguide. The use of multiple incoupling holograms that diffract different colors of light in different directions, or along different paths, through a waveguide substrate advantageously provides for a reduction of cross-talk between the colors of a holographic image. In a square-shaped design, red, green, and blue input and output holograms approximately overlay on top of each other. The green redirection hologram is laterally separated from the red and blue redirection holograms. Using this square-shape design, the light beams for the three colors are separated into two paths propagating from input to output holograms.

A reflective polarizer includes a plurality of first layers disposed on a plurality of polymeric second layers. Each of at least 30% of the first layers includes at least 30% by weight of an inorganic material. For an incident light incident in a plane and a first incident angle, the reflective polarizer and the first layers have respective average optical reflectances R3v and R1v in a visible wavelength range and respective average optical reflectances R3ir and R1ir in an infrared wavelength range, R1v<R3v and (R1ir−R3ir)>10%, when the incident light is polarized along a first direction; and for the visible wavelength range and for a second incident angle, the plurality of polymeric second layers has an average optical reflectance R2v(x) when the plane includes the first direction and an average optical reflectance R2v(y) when the plane includes a second direction, 5%<R2v(y)<R2v(x)<60%.

An aircraft has a seat that has at least one of (1) a nonplanar back surface profile and a touch sensitive film display system carried by the seat and configured to conform to the nonplanar back surface profile and (2) a privacy screen selectively stowed within an interior of the seat. An aircraft has a pilot seat, a passenger seat disposed aft relative to the pilot seat, and a holographic display system configured to project a holographic image in a space between the pilot seat and the passenger seat.