"In particular, the light sources may be non-linear such as an arc lamp, an incandescent bulb which also may be colored, filtered or painted, a lens end bulb, a halogen lamp, a light emitting diode (LED), a chip from an LED, a neon bulb, a fiber optic light pipe transmitting light from a remote light source, a laser or laser diode, or linear such as a line light or fluorescent tube, or any other su" . . . .