Both an optician and a professional scuba-diver, Roger Demetz died last month at the age of 93. In 1953, he invented the first scuba-diving mask with corrective lenses. At the same time, he opened his optical shop in Paris and founded the Demetz brand. In 1968, he launched his first swimming goggles with corrective lenses, which he sold in his own shop but also to his fellow opticians. In 1988, his son Gilles took over the reins of the company and extended the product range to all kinds of sports activities, and earlier this year to a children's range, following the partial acquisition of the company last year by Opal, the French kids' eyewear specialist.

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