Abstract: A display system for ambient light discrimination comprising: a planar waveguide comprising a plurality of collocated optic fibers wherein, the planar waveguide is adapted to guide incident light within the incidence angle acceptance range and wherein the planar waveguide is adapted to guide light along a bias trajectory, wherein, in use, the display system is adapted for discriminating against incident light outside an incidence angle acceptance range.

Abstract: The present subject matter is an improved skylight to improved low sun-angle light collection and reduced high sun angle light and heat collection. A steeply sloping dome contains parabolic reflectors that redirect low elevation light into a light passage. The steeply sloping sides and the reflectors reflect high elevation angle rays away from a light passage.

Abstract: A rollable display device is provided. An exemplary embodiment of the present invention provides a rollable display device including: a display body including a display unit configured to display various types of information as an image on one surface thereof and provided to be rollable; and a flexible battery provided on the display body and configured to supply power to the display body.

Abstract: Embodiments of the disclosure provide a projection display apparatus comprising: a light source for emitting a light beam; a first light path configured to project the light beam emitted from the light source to a first display position; a second light path configured to project the light beam emitted from the light source to a second display position; a light patch switching device configured to switch the light beam emitted from the light source between the first light path and the second light path; and a light modulation device through which both the first light path and the second light path pass, wherein the light modulation device is configured to modulate the light beam passing therethrough to generate a display image.

Abstract: The present disclosure relates generally to light management constructions comprising microstructured prismatic elements useful in the preparation of sun-facing light redirecting films having reduced glare.

Abstract: Systems and methods provide a retro-reflective screen covered with a screen material. The retro-reflective screen has a plurality of retro-reflective screen elements positioned within the screen material. At least one of the plurality of retro-reflective screen elements is oriented so as to have an incident angle that is less than 45 degrees. Additionally, a portion of the screen material that corresponds to the at least one screen element has an incident angle that is greater than the incident angle of the at least one screen element. Additionally, the system also comprises at least one projector that (i) generates light characterizing an image or video and (ii) projects the light onto the retro-reflective screen.

Abstract: A display element includes a projection screen for a head-up display and a pivot apparatus for adjusting an inclination of the projection screen about a horizontal inclination axis. The pivot apparatus includes an eccentric unit for adjusting the inclination. The eccentric unit is mechanically coupled directly to the projection screen. The eccentric unit includes a first gearwheel and an eccentric element which is formed eccentrically with respect to the first gearwheel and is fastened on the first gearwheel. The eccentric element is in the form of a disk and an area of a narrow side of the disk-shaped eccentric element is arranged eccentrically with respect to the first gearwheel.

Abstract: A system includes a particle configured for emitting light in response to stimulation by a light beam, a first light source configured for generating a first light beam that traps the particle in a potential well created by the light beam in air, and a second light source configured for generating a second light beam that stimulates the particle to emit emission light.

Abstract: A rollable display device includes a display panel having a flexible property, a roller configured to receive the display panel in a rolled-up configuration, and a handle coupled to an end portion of the display panel. The rollable display device further includes a housing configured to house the roller and the display panel in the rolled-up configuration. The housing includes an outlet, which the display panel passes through in an unrolled configuration, and a first coupling hole disposed apart from the outlet and is configured to receive the handle.

Abstract: The present subject matter is an improved skylight employing four key elements to achieve its twin objectives of improved low sun-angle light collection and reduced high sun angle light and heat collection: (1) a transparent truncated pyramid-shaped dome, (2) two horizon-facing parabolic reflectors, (3) a collimating curb, and (4) a dual-pane diffuser assembly.

Abstract: One embodiment provides a deformable housing, including a recess for holding a deformable device; a deformable portion comprising at least two surfaces having a plurality of concave/convex structures; and at least two support parts embedded in the deformable portion. Other aspects are described and claimed.

Abstract: A projection kaleidoscope has a shell, a light supply device, a rotating device, a film unit, a reflex cone, and a projecting convex lens. The light supply device is mounted in the shell and has a light-emitting part and a light converging unit. The rotating device is mounted in the shell and has a driver and a transmission connected to the driver. The film unit is mounted on the transmission of the rotating device and faces the light converging unit of the light supply device. The reflex cone is mounted on the transmission of the rotating device and faces the film unit and the projecting opening. The projecting convex lens is mounted in the shell and faces the reflex cone. The rotating device drives the film unit and the reflex cone to rotate in reverse to each other.

Abstract: Embodiments of the present application provide a display screen, wherein the display screen is in a fully-closed or partially-closed housing structure, an interior of the housing structure being configured to provide continuous images with a view angle of 180 degrees to 360 degrees in a horizontal direction; wherein the housing structure includes a cylindrical portion, a side wall of the cylindrical portion being arranged in a smooth arc line or straight line on an axial cross section, and if the side wall of the cylindrical portion is arranged in the arc line, the radius of a circle corresponding to the arc line is greater than a maximum vertical distance from the arc line to an axial line. According to the present application, the audiences feel comfortable in watching and the cost is saved, while a strong sense of immersion is achieved for the audiences.

Abstract: A flexible display device includes a display panel, at least one inspection part, and a detector. The display panel includes at least one bending portion and a display area. The inspection part is located on the bending portion and bends in a manner similar to the bending portion. The detector applies an inspection signal to the inspection part and receives an output signal from the inspection part. A crack in the inspection part is then determined based on a comparison of the inspection and output signals.

Abstract: A developing cartridge, comprising: a housing; a developing roller; a drive mechanism configured to transmit a driving force to the developing roller; and a restriction part configured to restrict movement of the housing when the restriction part engages with an external member, wherein the housing comprises: a first side wall; and a second side wall spaced from the first side wall in a first direction, wherein the drive mechanism is disposed to the second side wall, wherein: the restriction part is disposed to the first side wall; and the restriction part comprises projecting parts spaced from each other in a second direction perpendicular to the first direction.

Abstract: An object is to provide a daylighting sheet which efficiently performs daylighting and in which, when the daylighting sheet is applied to a window of a building or the like, it is possible to see an outdoor side. The daylighting sheet includes a translucent base material layer; and a light deflection layer that is formed on the base material layer, and the light deflection layer includes: light transmission portions that are aligned along one surface of the base material layer so as to be able to transmit light, each of the light transmission portions including a portion that is convex upwards; and light deflection portions that are formed between the light transmission portions and filled with a material whose refractive index is lower than that of the light transmission portions.

Abstract: A temperature measurement system includes at least one temperature measurement probe. The at least one temperature measurement probe includes at least one hollow filament configured to emit thermal radiation in a predetermined and substantially continuous wavelength band at least partially representative of a temperature of the at least one hollow filament. The at least one hollow filament has a first diameter and a first emissivity. The at least one temperature measurement probe also includes at least one thin filament extending within at least a portion of the at least one hollow filament. The at least one thin filament is configured to emit thermal radiation in a predetermined and substantially continuous wavelength band at least partially representative of a temperature of the at least one thin filament. The at least one thin filament has a second emissivity and a second diameter less than the first diameter.

Abstract: A display screen includes a filter layer, a fluorescent layer having parallel fluorescent stripes, and an attachment layer between an excitation side of the fluorescent layer and a first side of the filter layer to attach the excitation side of fluorescent layer to the filter layer while providing vertical separation therebetween. The attachment layer includes attachment regions that are separated from each other by lateral spacings such that excitation-side air gaps are formed between areas of the fluorescent layer and the filter layer that correspond to the lateral spacings. During display operation, excitation light received on a second side of the filter layer propagates through to the first side of the filter layer, and at least a portion of the excitation light that propagates from the second side of the filter layer travels through the excitation-side air gaps to excite the fluorescent stripes.

Abstract: An exchangeable lens includes: a mount unit at which a camera body is detachably engaged; a plurality of drive target members, conditions of which change as a drive force is applied thereto; an initialization unit that executes initialization processing for each of the plurality of drive target members; an initialization status transmission unit that transmits initialization statuses, each indicating a status of the initialization processing executed for one of the drive target members, to the camera body via a first transmission path over predetermined first cycles; and a drive condition transmission unit that transmits a drive condition of at least one drive target member among the plurality of drive target members to the camera body via a second transmission path different from the first transmission path over predetermined second cycles different from the predetermined first cycles.

Abstract: Thermophysical property measurement apparatus and method that can obtain accurate absolute thermoelectric power and thermal conductivity are provided easily and conveniently. A thermophysical property measurement apparatus 50 is provided which includes a DC-AC voltage generator 100 which selectively applies AC or DC voltages of different polarities to a metal sample 4 to which temperature gradient is provided by connecting the metal sample 4 between metal blocks of temperatures T1 and T2; a thermocouple 5 which measures a temperature change at the center of the metal sample 4 when the AC voltage is applied thereto by the DC-AC voltage generator 100 and a temperature change at the center of the metal sample 4 when the DC voltages of the different polarities are applied; and an operation device 54 which calculates absolute thermoelectric power and thermal conductivity of the metal sample 4 using the two temperature changes measured by the thermocouple 5.