Patent ID: 7527382
Filing Date: 2009-05-05
Classification: H05B,Y02B

Abstract:
1. A method comprising the steps of receiving a first operating address at a communications port of an image projection lighting device; comparing the first operating address to a second operating address contained in a memory of the image projection lighting device; receiving a command at the communications port to vary a variable homogenizing system; and if the first operating address is the same as the second operating address then changing the image projection lighting device from an existing state to a first state in response to the command; wherein the image projection lighting device which includes a first homogenizing system, a second homogenizing system, and a lamp; wherein the lamp projects a light having a light path; wherein in the existing state the first homogenizing system is in the light path and the second homogenizing system is not in the light path; and wherein the step of changing the image projection lighting device from the existing state to the first state includes moving the first homogenizing system out of the light path and the second homogenizing system into the light path; wherein when the first homogenizing system is in the light path, the first homogenizing system shapes the light projected by the lamp into a first pattern of light which has substantial homogeneity; wherein when the second homogenizing system is in the light path, the second homogenizing system shapes the light projected by the lamp into a second pattern of light which has substantial homogeneity; and wherein the first and the second patterns of light are different.