Abstract: A directional input device with a light directing shaft that avoids wear and tear caused by physical contact between a shaft and a sensor surface. A directional input device according to the present teachings includes a light emitter and a shaft having a surface that reflects light from the light emitter. A directional input device according to the present teachings further includes a set of light sensing elements that are positioned to detect a position of the shaft by sensing light reflected from the shaft.

Abstract: A leadless optical electronic package includes a lead frame having a die-attach pad and a plurality of leadless connection pads encapsulated in and extending through an encapsulation defining a planar mounting surface that can be soldered directly to a circuit board. The die-attach pad and connection pads define internal surfaces that remain partially exposed through the encapsulation. The internal surfaces are for attaching an electronic die and making electrical connections between the die and the connection pads. A die mounted on the die-attach pad is cooled more effectively and efficiently than dice in prior optical electronic packages. The leadless connection pads reduce the footprint and height of the package compared with prior optical electronic packages. The encapsulation is adapted for receiving a cover having a cover glass to allow light to pass though the cover and illuminate the die. The cover is adapted to receive an optics component for projecting light through the cover glass onto the die.