Abstract: A rider's helmet for a motorcycle or the like having an auxiliary brake lamp secured thereto and connected via a quick detachable electrical connector in parallel with the brake lamp of the motorcycle.

Abstract: A viewing system is provided for viewing images with a three-dimensional effect, wherein the system is particularly adapted for viewing television images in full color. The viewing system comprises a filter mat having two juxtaposed polarizing filters for placement over a television viewing screen or other rear surface projection device in substantial registry with two similarly juxtaposed and slightly different images of a common scene or subject. The polarizing filters are oriented on different axes to polarize the light from the two images on different axes. The viewer observes these polarized images through eyeglasses having lens openings covered by polarizing lenses oriented with respect to the polarizing filters of the filter mat such that the two images are respectively observed by the viewer's right and left eyes.