Lighting system

Details Lighting system Lighting system

1978-04-17

1980-09-09

Nelson, Peter A.

Illumination

Revolving

362252, 362806, F21V 704

Patent

active

042220912

ABSTRACT:
A lighting system having a high output lamp constituting an approximately point-shaped light source and a plurality of transparent shells disposed about the high output lamp, each of which shells has a central opening, an inner rim face about the opening and an outer rim face about the periphery of the shell. At least a major portion of the light emitted by the lamp is received by the inner rim faces of the shells and is transmitted by total reflection between the opposite side walls of each of the shells to and out of the outer rim faces of the shells, from which the light emerges.

REFERENCES:
patent: 2316589 (1943-04-01), Iwanowicz
patent: 3018362 (1962-01-01), Joyce
patent: 3727044 (1973-04-01), Monrey
patent: 3758285 (1973-09-01), Knowlton
patent: 3767910 (1973-10-01), Harrigan
patent: 3904865 (1975-09-01), McCarthy
patent: 3950638 (1976-04-01), Kent et al.
patent: 4072857 (1978-02-01), DeVicaris
patent: 4127892 (1978-11-01), Bakalowits et al.

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