.~> Including particles loosely housed for agitation
DEFINITION
Classification: 353/1
(under the class definition) Subject matter including a plurality of reflecting surfaces so arranged in the optical path that images of objects viewed as multiple images of the objects arranged in a symmetrical pattern and relative motion between the objects and the reflecting surfaces or between the reflecting surfaces and observer changes the patterns.
(1) Note. The reflecting surfaces are usually elongated and at an angle to each other which forms a V-shaped trough when two mirrors are employed.
SEE OR SEARCH CLASS
359, Optics: Systems (Including Communication) and Elements,
616+, for a kaleidoscope where a pattern is merely viewed. See (2) Note to Class 359, subclass 616.