Retro-reflectors
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United States of America Patent
Stats
-
Jun 5, 1990
Grant Date -
N/A
app pub date -
Jul 19, 1988
filing date -
Jul 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A retro-reflector system 20 suitable for a highway lane marker is moulded in one piece from a transparent plastic material and has a plurality of side by side curved 'roof edge' reflectors 21 (only one of which is illustrated) and a part elliptical lens 26 extending across the front 'V' of each of the 'roof edge' reflectors 21. A light ray on path 23 will pass through lens 26, be reflected by surfaces 22, 24, and will leave the lens 26 along a path 28 which is inclined slightly upwardly with respect to path 23 so that light from a vehicle's headlights will be directed upwardly towards the driver's head.
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