The present invention provides a systems for a stereoscopic display, comprising independently addressable left polarizing LED packages, and independently addressable right polarizing LED packages, wherein each of the polarizing elements of the independently addressable left polarizing LED packages are configured for a first polarizer alignment and a first package alignment, and wherein the polarizing elements of the independently addressable right polarizing LED packages are configured for a second polarizer alignment that is different than the first polarizer alignment, and a second package alignment that is different than the first package alignment.

A head-mounted visualization unit is proposed having an at least partially light-transmissive optical system, wherein the optical system has a first optical channel, which is assigned to a first eye of a user of the head-mounted visualization unit, and a second optical channel, which is assigned to a second eye of the user, wherein the first optical channel is substantially transmissive to optical radiation of a first polarization and substantially opaque to optical radiation of a second polarization, with the first polarization substantially being orthogonal to the second polarization, wherein the second optical channel is substantially transmissive to optical radiation of the second polarization and substantially opaque to optical radiation of the first polarization, wherein at least in the first optical channel a polarizer and a light attenuator are arranged, and wherein the light attenuator is arranged downstream of the polarizer in a direction toward the first eye of the user.

The present disclosure relates to an electronic device, a display device, and a driving method for the display device, and relates to the field of display technology. The display device includes a display panel, a polarization conversion layer, and a lens layer. The display panel is used to display multiple depth-of-field images in a time-division way during a frame. The polarization conversion layer is arranged on the light exit side of the display panel, and is used to convert light for different depth-of-field images into polarized light of different polarization states. The lens layer is arranged on the side of the polarization conversion layer away from the display panel, and includes a plurality of lens units, each lens unit including a metasurface lens.

The invention relates to a head-mounted display (HMD) (1), comprising a housing (10) having an interior (11), at least one optical lens (15, 17) having a focal plane (5) located at the focal point (16, 18), which focal plane is arranged within the housing (10); at least one first polarizing filter (21) having a first polarization direction and one second polarizing filter (22) having a second polarization direction, and at least one LCD unit (25), wherein the at least one LCD unit (25) is arranged in the area of the focal plane (5) between the first polarizing filter (21) and the second polarizing filter (22); the first polarizing filter (21) and/or the second polarizing filter (22) is or are arranged at a distance from the focal plane (5). The invention further relates to an amusement device (2), in particular an open-air amusement ride, a roller coaster or a carousel, comprising an HMD (1).

The invention relates to a head-mounted display (HMD) (1), comprising a housing (10) having an interior (11), at least one optical lens (15, 17) having a focal plane (5) located at the focal point (16, 18), which focal plane is arranged within the housing (10); at least one first polarizing filter (21) having a first polarization direction and one second polarizing filter (22) having a second polarization direction, and at least one LCD unit (25), wherein the at least one LCD unit (25) is arranged in the area of the focal plane (5) between the first polarizing filter (21) and the second polarizing filter (22); the first polarizing filter (21) and/or the second polarizing filter (22) is or are arranged at a distance from the focal plane (5). The invention further relates to an amusement device (2), in particular an open-air amusement ride, a roller coaster or a carousel, comprising an HMD (1).

A head-wearable display device is configured to support a plurality of combiners (e.g., at least two combiners) to expand an eyebox associated with the head-wearable display device. The plurality of combiners may expand the pupil and the head-wearable display device may be configured to align the magnification between the plurality of combiners, such that a single magnified virtual image with an expanded eyebox may be delivered to the user.

The invention relates to an optical device (FILT) for filtering light received, by polarisation or mechanically, from a medium presenting a graphic and/or textual content, characterized in that cycles of opening and closing a vision space, in a visible light spectrum, are realized periodically using the optical device (FILT) at a preset frequency Fd and in that the successive open periods each have a duration (T1) comprised in an interval of values ranging from 15 to 35% of the duration (T) of the realized cycles.

A geometric phase optical element and a three-dimensional display apparatus including the same are provided. The geometric phase optical element includes: a liquid crystal layer; a first electrode on a surface of the liquid crystal layer; and a second electrode on another surface of the liquid crystal layer, wherein, when no voltage is applied to the first and second electrodes, the liquid crystal layer is configured such that a phase difference according to an arrangement of the liquid crystal is π and light transmitted through the liquid crystal layer is diffracted by a first deflection angle, and when a first voltage that causes the phase difference according to the arrangement of the liquid crystal to become π/2 is applied to the first and second electrodes, the liquid crystal layer is configured such that the light transmitted through the liquid crystal layer is diffracted by a second deflection angle.

A geometric phase optical element and a three-dimensional display apparatus including the same are provided. The geometric phase optical element includes: a liquid crystal layer; a first electrode on a surface of the liquid crystal layer; and a second electrode on another surface of the liquid crystal layer, wherein, when no voltage is applied to the first and second electrodes, the liquid crystal layer is configured such that a phase difference according to an arrangement of the liquid crystal is π and light transmitted through the liquid crystal layer is diffracted by a first deflection angle, and when a first voltage that causes the phase difference according to the arrangement of the liquid crystal to become π/2 is applied to the first and second electrodes, the liquid crystal layer is configured such that the light transmitted through the liquid crystal layer is diffracted by a second deflection angle.

An optical sensor for an aircraft includes two detectors, a light source, and a controller. The detectors are oriented along detector paths and have tilt angles and fields of view. The detectors are configured to detect light reflected from an illumination volume and to generate detector signals that correspond to intensities of detected light. The tilt angles are equal such that each detector is oriented in an opposite direction within a plane containing a light source path and the detector paths. The light source is oriented along the light source path and is configured to illuminate the illumination volume which overlaps with the fields of view within a predetermined distance range. The controller is configured to receive the detector signals, detect whether a cloud is present based upon the detector signals, determine a cloud phase, and calculate a density of the detected cloud.