Little or no light from the sky
strikes the windows on narrow streets or lanes, in light wells or where
very high buildings stand opposite. Luxfer Prisms must then be
installed as canopies. An independent iron frame, ornamental if need be,
supports the Prism panel at an angle from the wall, and protects
the window as would an awning. It is generally hinged at the top, and
the bracket support may be movable or not. All the available light
rays from the sky thus fall upon the panel and are bent horizontally
inward.
In appearance the canopy is attractive,
and the resultant light strong and well distributed.