Abstract: Embodiments are disclosed for a stylus comprising an energy storage device for powering active functionality of the stylus, and a charging circuit electrically coupled to the energy storage device and configured to provide charging current for recharging the energy storage device. The stylus further comprises a magnetically-attractable element comprising ferromagnetic material disposed in a ring formation on an outer surface of the stylus, the magnetically-attractable element being electrically coupled to the charging circuit to form a terminal of the charging circuit, and the magnetically-attractable element being configured to be received on a dock via magnetic attraction to a permanent magnet of the dock to bring the stylus into a docked position in which the magnetically-attractable element contacts a charging contact of the dock to thereby cause the charging circuit to receive charging current from the dock.

Abstract: Embodiments are disclosed for a stylus comprising an energy storage device for powering active functionality of the stylus, and a charging circuit electrically coupled to the energy storage device and configured to provide charging current for recharging the energy storage device. The stylus further comprises a magnetically-attractable element comprising ferromagnetic material disposed in a ring formation on an outer surface of the stylus, the magnetically-attractable element being electrically coupled to the charging circuit to form a terminal of the charging circuit, and the magnetically-attractable element being configured to be received on a dock via magnetic attraction to a permanent magnet of the dock to bring the stylus into a docked position in which the magnetically-attractable element contacts a charging contact of the dock to thereby cause the charging circuit to receive charging current from the dock.

Abstract: A power monitoring system uses a low loss reflective element to partially split the output laser beams from an array of laser sources, in a parallel configuration, to produce a monitor beams for each laser source. Each of these monitor beams may propagate within the reflective element in a lossless manner under total internal reflection and into one of a plurality of photodiodes that sense an optical characteristic such as output beam intensity, where this sensed signal is then used as part of a feedback control to control operation of the laser sources in the array.

Abstract: The invention provides an imager panel subassembly for use in an optical projection system. The subassembly includes a reflective imager panel, such an LCoS microdisplay, for spatially modulating an optical beam incident upon a front surface thereof for producing an image. An optically transparent birefringent trim retarder is disposed in front of the front surface of the imager panel for enhancing the image contrast, and for protecting the imager panel from the outside dust. The subassembly further includes a spacer separating the imager panel and the trim retarder for forming an enclosed airspace therebetween, and adjustable coupling means for securely coupling the trim retarder and the imager panel together in a pre-determined relative position independent of the optical projection system, so that to allow rotation of the trim retarder relative to the imager panel while maintaining dust-tight sealing of the enclosed airspace.

Abstract: A method and apparatus for an air vent assembly is provided in which individual louvers and spacers are connected together to form chevron shaped channels that allow increased air flow while blocking the escape of direct light. The louvers are formed into a chevron shape that extends lengthwise from one end of the louver to another end of the louver. The spacers are chevron shaped and interlock or are bonded together with one another to secure the louvers and to provide a support structure such that additional spacers and louvers may be stacked together as needed to form an air vent for use in a given device.