Illumination – Housing – Recessed
Patent
1988-03-16
1989-08-22
Lazarus, Ira S.
Illumination
Housing
Recessed
362339, F21S 114
Patent
active
048601829
ABSTRACT:
The invention relates to a lighting unit for installation in a plane, in particular for airports, with the object of radiating light in an optimum manner in two opposite directions in an energy-saving way and with a minimum of electric power. It should be compact and its function should not be adversely affected during rough operations by snow-clearing equipment or the like; it has the following features; Flat prism grating (1,2) are inserted horizontally in orifices of a flat prism holder (5) having an upward sloping upper surface; a light source (3) is arranged under each prism grating.
REFERENCES:
patent: 3999054 (1976-12-01), Dorman
patent: 4382274 (1983-05-01), De Backer et al.
patent: 4396972 (1983-08-01), Kaneko et al.
Hagarman Sue
Lazarus Ira S.
Meta-Fer Holding S.A.
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