Cat's eye (road)
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A cat's eye, or road stud, is a retroreflective safety device used in road marking and was the first of a range of raised pavement markers. The cat's eye, when illuminated by the lights of an approach
Original form cat's eye, UK
Cat's eye glass body and principle of operation. Back (left) face is mirror-coated.
The double-ended cat's eye is Shaw's original design and marks the road centre-line.
The different colours of cats eyes, at Picket Post on the A31
Percy Shaw
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Percy Shaw, was an English inventor and businessman. He patented the reflective road stud or "cat's eye" in 1934, and set up a company to manufacture his invention in 1935.
Cat's eye (road)
…is protected from impact damage by metal "kerbs" – which also give tactile and audible feedback for wandering drivers. The inventor of cat's eyes was Percy Shaw of Boothtown, Halifax, West Riding of Yorkshire, England. When the tram-lines were removed in the nearby suburb of Ambler Thorn, he realised that he…
An early poster and catalogue image