Abstract: According to one embodiment, a lighting apparatus includes light sources, each light source emitting a different electromagnetic radiation having a different color temperature when turned ON. A controller turns ON and OFF each light source such that each electromagnetic radiation of each light source comprises a series of pulses. The controller alternate between turning ON each of the light sources with a speed sufficient to cause a perception of mixing the electromagnetic radiations of the light sources, thereby causing an appearance of a perceived light having a perceived color temperature different from the color temperatures of the light sources. To ensure that only one of the light sources is ON at a time, the controller waits a predetermined time between turning OFF a light source and turning ON a subsequent light source. The predetermined time is based on both a time for a light source of the plurality of light sources to turn OFF and a variable buffer time.

Abstract: A lighting apparatus may include light sources. Each light source may emit a different electromagnetic radiation having a different color temperature when turned ON. The lighting apparatus may include a voltage source providing power to the light sources and a controller. The controller may turn ON and OFF each light source such that each electromagnetic radiation of each light source comprises a series of pulses. The controller may alternate between turning ON each of the light sources with a speed sufficient to cause a perception of mixing the electromagnetic radiations of the light sources, thereby causing an appearance of a perceived light having a perceived color temperature different from the color temperatures of the light sources. To ensure that only one of the light sources is ON at a time, the controller may wait a predetermined time between turning OFF a light source and turning ON a subsequent light source.

Abstract: A lighting apparatus may include light sources. Each light source may emit a different electromagnetic radiation having a different color temperature when turned ON. The lighting apparatus may include a voltage source providing power to the light sources and a controller. The controller may turn ON and OFF each light source such that each electromagnetic radiation of each light source comprises a series of pulses. The controller may alternate between turning ON each of the light sources with a speed sufficient to cause a perception of mixing the electromagnetic radiations of the light sources, thereby causing an appearance of a perceived light having a perceived color temperature different from the color temperatures of the light sources. To ensure that only one of the light sources is ON at a time, the controller may wait a predetermined time between turning OFF a light source and turning ON a subsequent light source.

Abstract: An adjustable mouse includes a base and a thumb adjustment assembly coupled to the base. The thumb adjustment assembly is configured to move a thumb rest portion between a retracted position and an extended position. The adjustable mouse further may include a palm rest portion hingedly attached to the base by a hinge adjacent an outer edge of the base. The palm rest portion may have several fingers configured to expand in vertical and lateral directions. Embodiments of the adjustable mouse are further disclosed.

Abstract: An improved mode of construction is provided for a display device of the kind comprising an array of triangular-section slats rotated in synchronism in 120.degree. steps to present repeatedly to view, in sequence, three compound display surfaces, each carrying a respective poster or the like. In embodiments of the invention, each slat has a respective bearing and driving module with a respective rotary member releasably drivingly engaging the slat and with a respective cam, driving the rotary member and driven in turn by a driving shaft, passing through the cams of the bearing and driving modules of all of the slats. The bearing and driving modules are received in a stack within a hollow extrusion which forms one side member of a frame of the display device. The opposite side member of the frame receives a stack of bearing members rotatably supporting the opposite ends of the respective slats.

Abstract: A collapsible framework comprises a plurality of spars pivotally connected with hub members. The hub members comprise a first set which are disposed at the front of the framework when erected and a second set which are disposed at the rear of the erected framework, each of said spars being connected at one end with a hub member of the first set and at the opposite end with a hub member of the second set, and the spars being pivotally connected in pairs. The arrangement is such that each hub member of the first set is opposite a respective hub member of the second set and moves nearer to its opposite hub member as the framework is moved from a collapsed to an erected state and moves further from its opposite hub member as the framework is moved from its collapsed to its erected state. Opposite hub members of the first and second sets are connected by tension springs which assist in the unfolding and erection of the framework and provide the forces necessary to hold the frame in its erected position.

Abstract: A display structure is disclosed comprising rectangular panels each having at its upper edge a cross member (7) providing an upwardly open channel (80) which receives a central formation (68) of a retaining member (54) which provides, at its upper end, on opposite sides, respective downwardly open channels (60). In a lowered position of the retaining member, the outer wall (62) of each channel (60) extends on the outer side of the member (7) and can serve to retain the upper edge of a respective display card fitted in the panel. The releasing member can be raised, then tilted, while being held captive on the member (7) by an enlarged lower end part (76, 78) of the central formation which cannot pass between flanges (82) on member (7), to a position to one side of the respective side face of member (7) to allow vertical insertion or removal of the display card or the like.

Abstract: In a display or the like device, a flexible sheet is supported in tension within a frame by means of tensioning devices secured to the frame. Each tensioning device includes a movable peg which is engaged in an aperture in the sheet. Each peg can be placed in a position nearer the middle of the space within the frame in which it is retained, or displaced away from the middle of this space, to tension the sheet, and when so displaced, the peg is urged resiliently away from the middle of this space by a spring within the respective tensioning device, to hold the sheet in tension. The tensioning devices thus constitute a simple and compact means of providing for ready interchangability of various display areas in the frame.