Device for redirecting light through a hollow tubular light cond

Details Device for redirecting light through a hollow tubular light cond Device for redirecting light through a hollow tubular light cond

1991-02-19

1992-05-26

Lee, John D.

Optical waveguides

Optical imaging tunnel

385 37, 385 42, 385 44, 385 45, G02B 600

Patent

active

051174782

ABSTRACT:
When two hollow tubular light conduits are interconnected at a miter joint, beamed light can be redirected from one of the conduits to the other by a thin transparent prismatic element that is mounted to extend along the plane of the miter joint. When the interconnected conduits are acting as a luminaire, the miter joint can be fully illuminated by the transported light. A luminaire of unlimited length can be obtained by mounting a plurality of lamps and parabolic reflectors along a transparent hollow tubular light conduit and redirecting light from each lamp to be transported along the axis of the conduit in both directions.

REFERENCES:
patent: 586225 (1897-07-01), Belcher
patent: 2248638 (1941-07-01), Merton
patent: 2844998 (1958-07-01), Vincent
patent: 4684224 (1987-08-01), Yamashita et al.
patent: 4850665 (1989-07-01), Whitehead

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