Moving light display and method

Details Moving light display and method Moving light display and method

1998-05-05

1999-08-31

Dowling, William

Optics: image projectors

Image moves on screen

Reflector between lamp and screen

353 46, G03B 2128

Patent

active

059444029

ABSTRACT:
A highly collimated light source is directed at a reflective surface such as a diffraction grating, the grating being moveable with time. Light reflected from the grating is projected onto a display surface such as a scone of a lamp or onto a wall or a display plate. The plate may be transparent so that the light display is transmitted through it to a display surface of frosted glass positioned on the other side thereof.

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patent: 5749640 (1998-05-01), Yu

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