Retro-reflectors

Details Retro-reflectors Retro-reflectors

1988-07-19

1990-06-05

Arnold, Bruce Y.

350103, 350104, 350106, G02B 512

Patent

active

049308700

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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patent: 4245889 (1981-01-01), Hoffman
patent: 4560236 (1985-12-01), Clarke
patent: 4660929 (1987-04-01), Sick

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