Patent ID: 8162497
Filing Date: 2012-04-24
Classification: G03B

Abstract:
1. In combination, a luminaire for illuminating subject matter of photography, and a mask disposed to mitigate undesired optical effects visited upon the subject matter, which undesired optical effects arise from the luminaire, wherein the luminaire comprises at least one light source disposed to project light therefrom along a projection area having a central axis and an adjacent zone surrounding the central axis, and the mask comprises at least one light transmissive stratum which covers at least the light source of the luminaire, and light attenuating elements disposed on the light transmissive stratum, which light attenuating elements are operable to suppress optical intensity of light projected from the luminaire onto the subject matter such that relatively greatest light transmission occurs along the central axis and relatively decreasing light transmission occurs with increasing distance from the central axis wherein the light attenuating elements comprise a plurality of opaque dots which are increasingly closely spaced from one another with increasing distance from the central axis.