Multiple beam projection lighting system

Details Multiple beam projection lighting system Multiple beam projection lighting system

1999-04-14

2001-08-07

Sember, Thomas M. (Department: 2875)

Illumination

Light fiber, rod, or pipe

Illuminating or display apparatus

C362S551000, C362S554000, C362S559000

Reexamination Certificate

active

06270243

ABSTRACT:

FIELD OF INVENTION
This invention relates generally to a multiple beam projection lighting system, and more particularly to a system comprising a lineal series of illumination directors.
BACKGROUND OF THE INVENTION
It is known to provide a system for producing a plurality of beams from a collimated or focused quasi point source. It is further desirable to be able to produce further illumination from the path of an individual beam.
SUMMARY OF THE INVENTION
It is therefore a general object of the present invention to provide a system in which a series of directable beams from locations along a lineal light conveyance pathway of a first light beam.
It is a more specific object of the present invention to provide a system of the type described in which each directable beam in the series is of a controlled brightness with respect to a next beam.
Briefly stated, in accordance with the present invention, there are provided, in a light distribution system for producing a series of light beams remote from a quasi point source, a light collection means, a conveyance means having an axis, and a series of illumination directors. The light collection means project light from the quasi point source through the conveyance means to the series of illumination directors. The illumination directors are axially displaced from one another, and each illumination director directs a beam away from the system to provide illumination. At least one of the illumination directors comprises a beam splitting reflector having a predetermined ratio of reflection to transmission. Consequently, each illumination director in the series provides a measured amount of brightness in a predetermined ratio to the other illumination directors in the series. The light collection means and said illumination directors define brightness and size of the beams projected from the system.


REFERENCES:
patent: 3848119 (1974-11-01), Masson et al.
patent: 4064425 (1977-12-01), Masson
patent: 4933813 (1990-06-01), Berger
patent: 5043850 (1991-08-01), Dreyer, Jr.
patent: 5099399 (1992-03-01), Miller et al.
patent: 5276592 (1994-01-01), Henkes
patent: 5303125 (1994-04-01), Miller
patent: 5483427 (1996-01-01), Dealey et al.

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