Projection System and Methods Therefor

A method of producing an animated and monochromatic video effect on a surface, comprising:

• obtaining or producing a gray scale representation of the animated and monochromatic video effect, wherein the animated and monochromatic video effect is visible in a visible light spectrum;
• projecting, by a projector having an ultraviolet light source, in an ultraviolet light spectrum the gray scale representation of the video effect onto a projection surface;
• wherein the projection surface is covered with a continuous layer of a fluorescent pigment having a fluorescence emission in the visible light spectrum when excited by light in the ultraviolet light spectrum;
• and
• wherein the layer produces in response to projection of the gray scale representation of the video effect in the ultraviolet light spectrum a visible representation of the animated and monochromatic video effect from the fluorescence emission.

A single waveband scanline red-green-blue (RGB) display system, comprising:

• a projection surface comprising a plurality of line triplets, each line triplet comprising
• a first line comprising a first fluorescent dye that emits fluorescence in a red light,
• a second line comprising a second fluorescent dye that emits fluorescence in a green light, and
• a third line comprising a third fluorescent dye that emits fluorescence in a blue light;
• a projector comprising a controller operationally coupled to a digital micromirror device (DMD) chip, and an ultraviolet light source optically coupled to the DMD chip;
• wherein the controller is configured to receive video data comprising a plurality of frames, each frame containing a plurality of pixels, and each pixel having RGB information,
• wherein the controller is programmed to cause the DMD chip to project ultraviolet light onto the first, second, and third line, one at a time per frame;
• and
• wherein the controller is further programmed to illuminate only portions of the first, second, and third line in which corresponding pixels in the frame have red, green, and/or blue color.

A dual waveband scanline red-green-blue (RGB) display system, comprising:

• a projection surface having a front side and a back side, the front side comprising a plurality of line twins, each line twin comprising
• a first line comprising a first fluorescent dye that emits fluorescence in a first color;
• a second line comprising a second fluorescent dye that emits fluorescence in a second color;
• wherein the back side is covered by a continuous layer of a third fluorescent dye that emits fluorescence in a third color;
• and
• wherein the first, second, and third colors are not the same and are selected from the group consisting of red, green, and blue;
• a first projector comprising a first controller operational coupled to a first digital micromirror device (DMD) chip, and first and second ultraviolet light sources optically coupled to the DMD chip, wherein the first and second ultraviolet light sources emit ultraviolet light at distinct wavelengths;
• wherein the controller is configured to receive video data comprising a plurality of frames, each frame containing a plurality of pixels, and each pixel having RGB information,
• wherein the first controller is programmed to cause the first DMD chip to project ultraviolet light from the first ultraviolet light source onto the first line and to project ultraviolet light from the second ultraviolet light source onto the second line;
• wherein the first controller is further programmed to illuminate only portions of the first and second lines in which corresponding pixels in the frame have the first and second color;
• a second projector comprising a second controller operational coupled to a second digital micromirror device (DMD) chip, and a third ultraviolet light source optically coupled to the DMD chip, optionally wherein the third ultraviolet light source emits ultraviolet light at the same wavelength as the first or the second ultraviolet light source;
• wherein the second controller is configured to receive the video data comprising the plurality of frames, each frame containing the plurality of pixels, and each pixel having RGB information;
• wherein the second controller is programmed to cause the DMD chip to project ultraviolet light from the third ultraviolet light source onto the back side of the projection surface;
• wherein the second controller is further programmed to illuminate only portions of the back side in which corresponding pixels in the frame have the third color;
• and
• wherein the first and second projectors are configured to operate synchronously.