The present invention relates to a method for displaying an artificial fire pattern in an artificial fireplace. The method comprises the steps of:—providing a first video, which is based on a recorded video of an actual fire pattern of a fire on a physical fireplace element in an actual fireplace,—arranging an artificial fireplace element in an interior of the artificial fireplace, wherein the shape of the artificial fireplace element substantially corresponds to the shape of the physical fireplace element in the actual fireplace,—displaying a first video, in order to create the artificial fire pattern, wherein the first video is, seen along a line of sight, aligned with the artificial fireplace element, such that the artificial fire pattern substantially resembles to the actual fire pattern.

A 3D scanner for recording the 3D topography of an object, the 3D scanner including: a projector unit configured for projecting a structured beam of probe light onto the object; an imaging unit arranged to acquire 2D images of the object when the object is illuminated by the structured probe light beam; and an actuator unit arranged to control the position of the structured probe light beam at the object by rotating a movable portion of the projector unit around a pivoting axis, the actuator unit including a rotation motor including or arranged to drive a wheel, where the surface of the wheel operatively coupled to the movable portion of the projector unit has a radial distance from the axis of the rotation motor which changes with the rotation.

A 3D scanner for recording the 3D topography of an object, the 3D scanner including: a projector unit configured for projecting a structured beam of probe light onto the object; an imaging unit arranged to acquire 2D images of the object when the object is illuminated by the structured probe light beam; and an actuator unit arranged to control the position of the structured probe light beam at the object by rotating a movable portion of the projector unit around a pivoting axis, the actuator unit including a rotation motor including or arranged to drive a wheel, where the surface of the wheel operatively coupled to the movable portion of the projector unit has a radial distance from the axis of the rotation motor which changes with the rotation.

A holographic projection system is disclosed for cost-effectively generating “real image” holographic images. In at least one embodiment, the system provides an at least one primary image source configured for projecting a primary image via an at least one light ray. A computing device is in communication with the at least one primary image source and configured for providing the primary image to be subsequently projected by the at least one primary image source. A curved reflector is positioned and configured for receiving and reflecting the at least one light ray toward a focal point of the reflector, the at least one reflected light ray converging at an image point so as to create a hologram of the projected primary image at the image point, with said hologram being viewable by an at least one observer.

A semi-transparent semi-retroreflective film and an air display device are provided. The air display device includes: a first polarizer and a second polarizer assembled with each other to form a cell; a semi-transparent semi-reflective structure and a semi-transparent semi-retroreflective film disposed between the first polarizer and the second polarizer; a first ¼ wave plate disposed at a side of the air display device adjacent to the first polarizer; and a second ¼ wave plate disposed between the semi-transparent semi-reflective structure and the semi-transparent semi-retroreflective film. The air display device is configured such that polarized light incident from the first polarizer, after being processed by an internal optical path of the air display device, exits from the second polarizer to form an air image at a side of the air display device away from the first polarizer.

A holographic projection system is disclosed for cost-effectively generating “real image” holographic images. In at least one embodiment, the system provides an at least one primary image source configured for projecting a primary image via an at least one light ray. A computing device is in communication with the at least one primary image source and configured for providing the primary image to be subsequently projected by the at least one primary image source. A curved reflector is positioned and configured for receiving and reflecting the at least one light ray toward a focal point of the reflector, the at least one reflected light ray converging at an image point so as to create a hologram of the projected primary image at the image point, with said hologram being viewable by an at least one observer.

Disclosed are systems and methods for manufacturing energy relays for energy directing systems and Transverse Anderson Localization. Systems and methods include providing first and second component engineered structures with first and second sets of engineered properties and forming a medium using the first component engineered structure and the second component engineered structure. The forming step includes randomizing a first engineered property in a first orientation of the medium resulting in a first variability of that engineered property in that plane, and the values of the second engineered property allowing for a variation of the first engineered property in a second orientation of the medium, where the variation of the first engineered property in the second orientation is less than the variation of the first engineered property in the first orientation.

Disclosed embodiments include an energy directing device having one or more energy relay elements configured to direct energy from one or more energy locations through the device. In an embodiment, surfaces of the one or more energy relay elements may form a singular seamless energy surface where a separation between adjacent energy relay element surfaces is less than a minimum perceptible contour. In disclosed embodiments, energy is produced at energy locations having an active energy surface and a mechanical envelope. In an embodiment, the energy directing device is configured to relay energy from the energy locations through the singular seamless energy surface while minimizing separation between energy locations due to their mechanical envelope. In embodiments, the energy relay elements may comprise energy relays utilizing transverse Anderson localization phenomena.

An AR optical element having high image quality, high efficiency of light utilization, and small-size is provided. The AR optical element has periodic structures of refractive index multiplexed with a predetermined interval and predetermined multiplicity, wherein each of the periodic structures of refractive index has an optical normal in a different direction from a physical normal orthogonal to a plane of a micro-region that reflects incident light.

An AR optical element having high image quality, high efficiency of light utilization, and small-size is provided. The AR optical element has periodic structures of refractive index multiplexed with a predetermined interval and predetermined multiplicity, wherein each of the periodic structures of refractive index has an optical normal in a different direction from a physical normal orthogonal to a plane of a micro-region that reflects incident light.