Abstract: Optical lenses and associated luminaire are described herein. In one aspect, a lens comprises a light receiving side comprising grooves for receiving light emitting diodes, the grooves defined by a central refractive region and walls comprising total internal reflection faces; and a light extraction side opposite the light receiving side, the light extraction side comprising refractive extraction surfaces, total internal reflection extraction surfaces, or combinations thereof. In some embodiments, luminaire comprises an array of light emitting diodes; and the lens positioned over the array of light emitting diodes.

Abstract: Optical lenses and associated luminaire are described herein. In one aspect, a lens comprises a light receiving side comprising grooves for receiving light emitting diodes, the grooves defined by a central refractive region and walls comprising total internal reflection faces; and a light extraction side opposite the light receiving side, the light extraction side comprising refractive extraction surfaces, total internal reflection extraction surfaces, or combinations thereof. In some embodiments, luminaire comprises an array of light emitting diodes; and the lens positioned over the array of light emitting diodes.

Abstract: A lens comprises a light receiving side comprising grooves for receiving light emitting diodes, the grooves defined by a central refractive region and walls comprising total internal reflection faces; and a light extraction side opposite the light receiving side, the light extraction side comprising refractive extraction surfaces, total internal reflection extraction surfaces, or combinations thereof. In some embodiments, luminaire comprises an array of light emitting diodes, and the lens positioned over the array of light emitting diodes.

Abstract: An optical user interface is provided in a mobile communication device. Motion of an input mechanism of the mobile communication device is detected via an optical sensor. In response to detection, one or more properties governing the motion are evaluated based on input from a motion sensor. Control information is generated based on evaluation.

Abstract: A method of managing data stored in an electronic device includes determining a desired memory storage location for data displayed on the electronic device responsive to a written and/or audible user direction, and then transferring the data to the desired memory storage location responsive to the determination. The written user direction may define at least one alphanumeric character and/or symbol on a display of the electronic device, and the audible user direction may provide a spoken/voice command. Related electronic devices and computer program products are also discussed.