Method of controlling a lighting device
View Patent ↗A digital micromirror device (“DMD”) is used to alter the shape of light that is projected onto a stage. The DMD selectively reflects some light, thereby shaping the light that is projected onto the stage. The control for the alteration is controlled by an image. That image can be processed, thereby carrying out image processing effects on the shape of the light that is displayed. One preferred application follows the shape of the performer and illuminates the performer using a shape that adaptively follows the performer's image. This results in a shadowless follow spot.
1. A method of controlling a lighting device, comprising:
establishing a parameter, from among a plurality of parameters of a lighting device at a controller, where the controller is separated from the lighting device by a channel, and where the plurality of parameters represents image processing operations to be carried out on images;
through an image processing operation, and based on the parameter, at a first time, selecting a first image from the controller, and at a second time, selecting a second image from the controller, where the second image is different than the first image; and
establishing said first image processed by said image processing operation at the controller, and sending information indicative thereof over said channel from said controller to said lighting device.
2. A method of controlling a lighting system having a lighting device, comprising:
establishing, at a controller, at least a first image parameter that represents an image processing operation to be carried out on an image;
image processing an animated image based on said first image parameter, to form an image processed animated image;
sending the image processed animated image over a channel from said controller to the lighting device; and
using the image processed animated image to shape the outer outline of a projected image that is projected by said lighting device.
3. A method of operating a lighting system comprising:
using a processor for varying parameters used for controlling each of a plurality of lights, wherein said varying comprises:
originating a first image from a central controller for a first scene, the first image being defined by a particular image parameter; and
originating a second image from the central controller for a second scene, the second image being defined by the particular image parameter,
using the first image at a first time to shape the outer perimeter of a projected light beam;
setting a change parameter to change between said first image and said second image, where the change parameter includes at least one of a speed of change, and a velocity of change; and
based on said change parameter, changing from the first image to the second image, by forming intermediate images between said first image and said second image, and using each of said intermediate images to shape the outer perimeter of the projected light beam.