Abstract: A lighting assembly adapted to be mounted in a lighting fixture is provided. The lighting assembly comprises comprises a first reflector, a second reflector and at least two sidewall parts, a first fastening arrangement adapted to secure the first reflector to in at least one sidewall part, and a second fastening arrangement adapted to secure the second reflector to at least one sidewall part. The first reflector, the second reflector and the at least two sidewall parts are adapted to be arranged in the lighting fixture and secured to each other such that they define sidewalls of a four-sided cavity. Further, junctions between the first reflector, the second reflector and the at least two sidewall parts are arranged to be at the corners of the four-sided cavity when the first reflector, the second reflector and the at least two sidewall parts are arranged in the lighting fixture.

Abstract: A lighting assembly adapted to be mounted in a lighting fixture is provided. The lighting assembly comprises comprises a first reflector, a second reflector and at least two sidewall parts, a first fastening arrangement adapted to secure the first reflector to in at least one sidewall part, and a second fastening arrangement adapted to secure the second reflector to at least one sidewall part. The first reflector, the second reflector and the at least two sidewall parts are adapted to be arranged in the lighting fixture and secured to each other such that they define sidewalls of a four-sided cavity. Further, junctions between the first reflector, the second reflector and the at least two sidewall parts are arranged to be at the corners of the four-sided cavity when the first reflector, the second reflector and the at least two sidewall parts are arranged in the lighting fixture.

Abstract: A mounting bracket arrangement is disclosed for retrofitting an LED panel (20) in between opposing end surfaces of a troffer (60). The mounting bracket arrangement comprises a pair of mounting brackets (10), each mounting bracket comprising a major edge (111) for abutting the mounting bracket against one of said end surfaces; an alignment edge (103) extending transversely from the major edge; an affixing portion (130) having a contact surface for contacting a roof section (65) of the troffer; and a mounting hook (140) extending from the affixing portion for hanging the LED panel from the mounting bracket. A LED panel retrofit kit and method of fitting such a retrofit kit in a troffer using such a mounting bracket arrangement are also disclosed.

Abstract: There is provided an arrangement for spot illumination (14). The arrangement provides an improved collimation and color mixing unit comprising a LED array (1), a convex shaped reflector (15a), a field lens (21) and an additional cylindrical reflector (15b) at the exit aperture of the system. In combination with an optical projection system which may comprise at least two additional zoom lenses and a gate (in which several maskers, gobos or shutters could be inserted) the system allows color mixing in an extended operational range including out of focus zoom settings often used to get soft edge spots.