Patent ID: 7048383

Claim:
A stage lighting apparatus comprising: an image projection lighting device for operation in theatrical fog comprising: a base housing; a yoke; a lamp housing; a motor which can change the position of the lamp housing in relation to the yoke; and a motor which can change the position of the yoke relation to the base housing; further comprising a processing system; a communications port; the lamp housing comprising: a cooling fan, a first air inlet, a first air filter, a lamp, and a light valve; the base housing comprising a video display device that can display multicolored images of content to an operator; wherein the cooling fan, the air first inlet and the first air filter together form at least part of a filtration system for filtration of theatrical fog particles; wherein cooling air external to the lamp housing enters the lamp housing through the first air inlet to pass through the first air filter to form a first filtered air; and wherein a first communication as to a status of the first air filter to a technician is accomplished by projecting an image from the lamp housing of the image projection lighting device.