Abstract: An illumination beam adjustment apparatus is disclosed. The apparatus comprises a housing (4), a plurality of first optical elements (12) fixed relative to the housing and adapted to receive and transmit electromagnetic radiation and adjust the beam angle of a beam of electromagnetic radiation passing therethrough, and a second optical element (14) removably mounted relative to the housing and adapted to receive electromagnetic radiation from the first optical elements and transmit electromagnetic radiation. The second optical element is adapted to adjust the beam angle of a beam of an electromagnetic radiation passing therethrough.

Abstract: An adaptive illumination device comprising first and second lighting units connected to each other by way of a hinge mechanism, and further provided with a gear mechanism such that angular movement of the first lighting unit about the hinge causes equivalent angular movement of the second lighting unit in an opposite direction about the hinge.