(under the class definition) Subject matter including a single lamp and two or more optical paths and means to direct light from the lamp to the optical paths, usually alternately.
SEE OR SEARCH THIS CLASS, SUBCLASS:
34, for a projector having plural optical paths and a single light source where the two paths are employed simultaneously to obtain a composite image.
49, for plural projection paths and a single light source in a projector for moving the image on a viewing screen.
63, for an epidiascope projector having plural optical paths and a single light source.
SEE OR SEARCH CLASS
352, Optics: Motion Pictures, for plural motion-picture projectors having a single light source.
