Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. John Dollond was an English optician, known for his successful optics business and his patenting and commercialization of achromatic doublets. Dollond was the son of a Huguenot refugee, a silk-weaver at Spitalfields, London, where he was born. He followed his father's trade, but found time to acquire a knowledge of Latin, Greek, mathematics, physics, anatomy and other subjects. In 1752 he abandoned silk-weaving and joined his eldest son, Peter Dollond, who in 1750 had started in business as a maker of optical instruments; this business is now Dollond

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