Lamp device for producing a kaleidoscopic light output

Details Lamp device for producing a kaleidoscopic light output Lamp device for producing a kaleidoscopic light output

1996-02-06

1998-01-27

Sember, Thomas M.

Illumination

Light source and modifier

Adjustable or repositionable modifier

362293, 362302, 362318, 362324, 362811, F21V 900

Patent

active

057115982

ABSTRACT:
A lamp device includes a light emitting unit for emitting a light beam, a light filtering unit, first and second focusing lenses, and a total internal reflection unit. The light filtering unit has a glass-holding frame and a pair of flat glasses which are fixed opposedly to the glass-holding frame. A space is formed between the flat glasses. A damping fluid is received in the space, and a plurality of colored glass fragments are dispersed in the damping fluid. The light filtering unit is positioned adjacent the light emitting unit so that the light beam from the light emitting unit can pass through the flat glasses and the colored glass fragments. The first and second focusing lenses are spaced opposedly from one another. The first focusing lens is positioned adjacent the light filtering unit. The total internal reflection unit is mounted between the first and second focusing lenses so that the light beam from the light filtering unit can be emitted through the first focusing lens, reflected by the total internal reflection unit, and emitted from the second focusing lens, thereby producing a kaleidoscopic light output.

REFERENCES:
patent: 3600568 (1971-08-01), Belliveau et al.
patent: 4742439 (1988-05-01), Choate
patent: 5188452 (1993-02-01), Ryan
patent: 5506762 (1996-04-01), Ziegler et al.
patent: 5513083 (1996-04-01), Chang
patent: 5552975 (1996-09-01), Ho

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