Means including a light distribution louver for the protection o

Details Means including a light distribution louver for the protection o Means including a light distribution louver for the protection o

1978-10-30

1980-09-09

Nelson, Peter A.

Illumination

Light source and modifier

Adjustable or repositionable modifier

362290, 362325, 362342, 362360, 362367, F21V 1102

Patent

active

042220947

ABSTRACT:
A light distribution louver for a lighting fixture wherein the louver together with supporting apparatus closes at least the bottom of the light fixture. The louver may be of unitary construction or preferably formed of individual louver sections or sectors depending upon the shape of the supporting apparatus. The louver sections or sectors may have fixed or movable vanes and in the case of sections, they may be positioned in a variety of orientations to attain varied light distribution characteristics. The invention further contemplates a structure wherein the supporting apparatus encloses the lighting fixture to afford more complete protection.

REFERENCES:
patent: 1906559 (1933-05-01), Ferree et al.
patent: 2033235 (1936-03-01), Ferree et al.
patent: 2825800 (1958-03-01), Spott
patent: 3076892 (1963-02-01), Stiffel
patent: 3426189 (1969-02-01), Deputy
patent: 3446955 (1969-05-01), Bailey et al.
patent: 4059754 (1977-11-01), Lewin

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