Beam sunlighting device for building interiors

Details Beam sunlighting device for building interiors Beam sunlighting device for building interiors

1984-04-03

1985-12-10

Wintercorn, Richard A.

350265, G02B 1700, G02B 2700

Patent

active

045575657

ABSTRACT:
A method and means of transmitting sunlight into the interior of a building by use of a planar solid transparent light deflecting panel or plate which is formed of a plurality of parallel identically spaced apart triangular ribs on one face, with the panel in its vertical orientation, the top slope angle (.gamma.) of each triangular rib, the bottom slope angle (.beta.) of each triangular rib and the included angle (.beta.+.gamma.) being within defined limits so that the panel substantially totally internally reflects external incident direct sunlight internally of the building when the panel is placed over an opening, such as a window, of the building, the panel being, by virtue of the specified angular ranges, particularly suited for use over a wide range of latitudes and requiring a minimal number of changes in tilt due to seasonal variations to usefully accommodate solar altitude and azimuth without producing glare while providing a predictable light distribution which can be integrated with electric light.

REFERENCES:
patent: 586220 (1897-07-01), Basquin
patent: 607792 (1898-07-01), Winger
patent: 693088 (1902-02-01), Wadsworth
patent: 717783 (1903-01-01), Wadsworth
patent: 720987 (1903-02-01), Wadsworth
patent: 721256 (1903-02-01), Wadsworth
patent: 721259 (1903-02-01), Wadsworth
patent: 732474 (1903-01-01), Wadsworth
patent: 749761 (1904-01-01), Wadsworth

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