US Patent 9739440 Vehicle illumination apparatus having adjustable modular optical units

An illumination apparatus includes a housing with a faceplate, at least one light source, at least one optical assembly coupled to the faceplate, a frame supporting the at least one light source, and a yoke assembly having a camshaft and a yoke with a set of lobes, the yoke assembly coupled to the faceplate and slideably received by the frame, such that the at least one optical assembly is moveable in a linear direction towards and away from the at least one light source by rotation of the camshaft.