Ringlight for use in high radiation

Details Ringlight for use in high radiation Ringlight for use in high radiation

1991-03-06

1992-09-01

Cole, Richard R.

Illumination

Revolving

362252, F21Y 800

Patent

active

051434369

ABSTRACT:
A ringlight having an annular array of light-emitting elements centered about a viewing passage has an outer annular body with an inner annular body fitted concentrically within the outer body to form an annular void and a light-enmitting aperture therebetween. A plurality of optical fibers extends into the void with end portions of the optical fibers secured therein to form an annular array at the light-emitting aperture. The first and second annular bodies cooperate to angle the end portions of the optical fibers towards a central axis of the viewing passage.

REFERENCES:
patent: 3114283 (1963-12-01), Gruner
patent: 3278739 (1966-10-01), Royka et al.
patent: 3786243 (1974-01-01), Ilzig et al.
patent: 3971621 (1976-07-01), Albrecht-Buehler
patent: 4706168 (1987-11-01), Weisner
patent: 4729070 (1988-03-01), Chiu
patent: 4988162 (1991-01-01), Hayami

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