Directional screen for a lighting fixture and method of making s

Details Directional screen for a lighting fixture and method of making s Directional screen for a lighting fixture and method of making s

1994-11-02

1996-10-29

Dzierzynski, Paul M.

Optical: systems and elements

Mirror

With support

359601, 359894, 362254, 362260, 362290, G02B 2700, G02B 7182, F21V 1106, F21V 1102

Patent

active

055702392

ABSTRACT:
A directional light screen and method of making the same are provided. The directional screen includes a plurality of transparent carrier members having opposing sides, the carrier members being arranged in a side-by-side manner. Thin lamellae can be placed between the carrier members, or the carrier members can be spaced by an air gap. The screen is mountable proximal to a light source. The screen directs light from the source in a direction generally parallel to the sides and lamellae. The sides can be smooth, roughened or contoured. Also, the lamellae can desirably be tinted, absorbing or reflective. Furthermore, the directional screen can be shaped to fully or partially surround a light source.

REFERENCES:
patent: 4820021 (1989-04-01), Usubuchi et al.
patent: 4877308 (1989-10-01), Okuno et al.
patent: 5008791 (1991-04-01), Cafero
patent: 5149191 (1992-09-01), Lewin et al.
patent: 5264999 (1993-11-01), Kempter

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