Patent ID: 6783251
Filing Date: 2004-08-31
Classification: H04N,H05B

Abstract:
A stage lighting apparatus comprising:a base; a yoke; a lamp housing; the lamp housing comprising a lamp, and a first light valve; wherein the lamp and the first light valve cooperate to project a first image and a second image; wherein the second image is created by applying a function to a plurality of pixels of the first image; wherein the plurality of pixels of the first image are arranged in a straight line; wherein applying the function to the plurality of pixels of the first image causes first, second, third, and fourth sets of the plurality of pixels to deviate from the straight line in first, second, third, and fourth directions, respectively; wherein the second set of the plurality of pixels is located in the second image between the first set and the third set; wherein the third set of pixels is located in the second image between the second set and the fourth set; and wherein the first and third directions are substantially the same, the second and fourth directions are substantially the same, and the first direction is substantially opposite the second direction.