Patent ID: 9121563
Filing Date: 2015-09-01
Classification: F21S

Abstract:
1. A collimator comprising: a base; a plurality of side walls arranged to enclose a light source; and an integral hinge, wherein at least one side wall of the plurality of side walls is a hinged sidewall coupled to the base by the integral hinge and wherein the hinged side wall is tiltable within a range of motion, and the base and the side walls of the collimator are configured so that light emitted by the light source enters the collimator through a light entry opening and exits substantially only through a light exit opening for any position of the hinged side wall over the range of motion, wherein the hinged side wall of the collimator is connected in a light-tight manner to a pair of opposing side walls, which opposing side walls comprise a number of pleats to accommodate the range of motion of the hinged side wall.