Abstract: A vehicle seat suspension mat (10) comprises one or more suspension springs (16) for supporting a seat cushion (22) and an occupancy sensor module (24) supported by at least one suspension spring. The module includes a first plate (26) having a switch element (38) arranged thereon and a second plate (28) mounted in a cantilevered manner to the first plate, in such a way that the first and second plates form together a pair of jaws, which the switch element is arranged between. The first and second plates are configured so as to move closer together against their resiliency in response to compressive forces acting on the first and second plates.

Abstract: For acquiring a 3-D image of a scene, the scene is illuminated with modulated light emitted by an illumination unit and imaged onto an array of lock-in pixel sensor cells, which detect the previously emitted light after it has been scattered or reflected by an object or a living being in the scene. One determines the modulation phase of the light detected at the lock-in pixel sensor cells and provides a reference modulation phase that stands in a known relationship with the modulation phase of the light at the time of the emission. Based upon the reference modulation phase and the modulation phase of the light detected at the lock-in pixel sensor cells one then calculates depth information on the scene.