초록 ▼

An inpavement light fixture for mounting in an airport runway or a taxiway having a cover with a flat surface and one or two windows for the passage of a light beam. An optical prism is detachably mounted in a cavity formed in the cover beside and beneath each window. The prism has three flat sides

An inpavement light fixture for mounting in an airport runway or a taxiway having a cover with a flat surface and one or two windows for the passage of a light beam. An optical prism is detachably mounted in a cavity formed in the cover beside and beneath each window. The prism has three flat sides forming an equilateral triangle with two of the sides sloping upwardly to a top edge positioned at a top of its window. A special sealing member fits over the prism and preferably covers one of the two sides which slope upwardly. This member extends about a lower portion of the prism and forms a water tight seal. An electric light is mounted in a bottom receptacle on which the cover is supported. A light channel is formed in the top of the cover and extends from each window towards an edge of the cover. This channel has a bottom which slopes at a small angle to the flat top.

대표청구항 ▼

An inpavement light fixture for mounting in pavement of an airport runway or taxiway comprising: a cover with a generally flat top surface and a bottom, said cover having at least one window for passage of an output light beam and a cavity formed therein, which cavity is open at said bottom of the c

An inpavement light fixture for mounting in pavement of an airport runway or taxiway comprising: a cover with a generally flat top surface and a bottom, said cover having at least one window for passage of an output light beam and a cavity formed therein, which cavity is open at said bottom of the cover; an optical prism detachably mounted to said cover adjacent said window, said prism having three flat sides forming an equilateral triangle with two of said three sides sloping upwardly to a top edge which is positioned at a top of said window, said prism fitting in said cavity; a sealing member fitting over said prism and covering one of said two sides which slope upwardly, said sealing member also extending about a lower portion of said prism and forming a watertight seal between said cover and said prism; electric light means capable of beaming light into said prism, said light means being mounted in said fixture and below said cover; detachable means for holding said prism in said cavity, said detachable means being attached to said cover, and a bottom receptacle on which said cover is supported.