Abstract:
A motor hub is disclosed. The motor hub comprises a housing for a motor. The housing is rotatable around an axis of rotation of the motor. The motor hub also has marks arranged on a surface of the housing, and spaces between the marks. The marks and spaces form a pattern readable for sensing a rotational speed of the motor.
Abstract:
A projection screen unit includes a first projection surface optimized for a predetermined range of ambient conditions and a second projection surface optimized for a second, different range of ambient conditions.
Abstract:
A method for forming a powder phosphor electroluminescent display includes forming a dielectric film on a plurality of sides of an uncoated phosphor layer, wherein the dielectric film is formed via a polymer multilayer process.
Abstract:
Solid freeform fabrication systems, powder supply bins for solid freeform fabrication systems, and methods of solid freeform fabrication are disclosed. One exemplary solid freeform fabrication system includes a powder supply bin, a build bin, a roller, and a print head disposed above the build bin that deposits a binder onto the powder in the build bin in a preselected pattern, the supply bin and/or the build bin translating in a x- and/or y-direction relative to the print head.
Abstract:
A display of an embodiment of the invention includes a number of display modules that are interlockable to form the display. Each display module includes at least one user-viewable display element, at least one connector, and at least one receptor, which are disposed in the display module. Each of a number of pixels of the display corresponds to at least one of the display elements of each display module. The connectors of each display module at least receive power from and/or provide power to adjacent display modules. The receptors of each display module are receptive to connectors of other adjacent display modules.
Abstract:
A hydrogen generating apparatus includes a chemical reaction chamber, a chemical solution reservoir, an unpowered pressure-producing member for moving a chemical solution from the chemical solution reservoir to the chemical reaction chamber, and a catalyst bed in the chemical reaction chamber.
Abstract:
A screen has an active material, having at least one optical property responsive to an electric field, disposed between electrodes, and a controller coupled to at least one of the electrodes for controlling the electric field in response to a signal received by the controller.
Abstract:
An enhanced-contrast projection screen and method of controlling such screens are disclosed. An embodiment of a dynamic projection screen includes a passive layer and at least one active layer. The active layer is superimposed on at least a portion of the passive layer and is adapted to selectively toggle between being transparent and being opaque. A method of controlling such a screen includes determining desired dimensions of a reflective region, and activating at least a portion of an active layer superimposed on at least a portion of a passive layer. The active layer is adapted to selectively toggle between being transparent and opaque.
Abstract:
A sensor/switching device configuration that includes a substrate and at least one element imprinted on the substrate containing an electroconductive material.
Abstract:
Solid freeform fabrication systems, powder supply bins for solid freeform fabrication systems, and methods of solid freeform fabrication are disclosed. One exemplary solid freeform fabrication system includes a removable powder supply bin, a build bin, a roller, and a print head disposed above the build bin that deposits a binder onto the powder in the build bin in a preselected pattern.