Optics: image projectors – Plural projection paths with single light source
Patent
1978-08-07
1980-06-03
Wintercorn, Richard A.
Optics: image projectors
Plural projection paths with single light source
353 2, G02B 2708
Patent
active
042058937
ABSTRACT:
A kaleidoscope is provided having an object enclosure containing a multiplicity of pattern producing objects mounted to one end of a tubular body member. The mounting method employed permits object enclosure rotation in two directions about the body member. Preferably, the object enclosure includes a first wall arranged in a spherical shape encompassing a chamber. A second wall is concentrically arranged with respect to the spherical shape interiorly of the chamber. The first and second walls delimit at least one compartment for the pattern producing objects. The chamber volume inboard of the second wall is visually unobstructed to permit observation along a line of sight therethrough. Consequently, two compartment segments on opposite sides of the object enclosure may be viewed simultaneously. The first wall of the object enclosure has a material thickness having first and second outboard surfaces on opposite sides thereof. One of the first and second outboard surfaces has a plurality of facets formed in it. The image provided at one end of the body member is viewed from the opposite end of the body member through a three-sided mirror. The dual rotation capability, faceted wall and spherical construction produce an unusual kaleidoscope image for observation.
REFERENCES:
patent: 2452363 (1948-10-01), Flotron
patent: 3100418 (1963-08-01), Posner
patent: 3383150 (1968-05-01), Powers
patent: 3738036 (1973-06-01), Landsinger et al.
patent: 3756685 (1973-09-01), Forsee
patent: 3930711 (1976-01-01), Powell
Steven Manufacturing Company
Wintercorn Richard A.
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