Abstract: An angular displacement decoder and a method of construction of the device is described. The decoder includes a designated rotor, the rotating part, as a partially metallized disk-shaped target, and a designated stator set, comprising a planar primary coil, as the source of excitation, and a plurality of planar secondary sensing coils, connected and disposed in an innovative manner, as sensing elements, distributed by a plurality of layers of a multilayer printed circuit board (PCB). In particular embodiments, the planar secondary/sensing coils are disposed as duets, as triplets, or as quartets, each one disposed in a different layer of the multilayer PCB, and the planar primary/excitation coil is disposed in a proper and determined layer of the multilayer PCB, and the partially metallized disk-shaped that rotates around its axis of revolution, is disposed with an air gap at determined distance from the stator set.

Abstract: A gesture lighting source output command method for controlling a lighting apparatus, together with an asymmetrical, no facing, gesture decoding device for commanding a lighting source, by decoding gesture translational motions of a heat emitting object, e.g. a human hand, at distances up to 1.5 meters, in geometrical planes that may be not coplanar with the gesture decoding device plane, and comprising a casing with an embedded electronic controller and two dual PIR sensors, geometrically arranged in a special manner, rotated 2? degrees one relatively to the other, fitted with specially designed Fresnel lenses, their beam axis forming an angle of 2? degrees between each other and an angle ? with the vertical.