Pierre-Louis Guinand (1748–1824) was a Swiss lens maker.[1][2][3][4][5][6][7][8][9][10][11][12] who in the late 1700s came up with a breakthrough for making better quality and larger glass, and in time went on to teach a young Fraunhofer at Joseph von Utzschneider's (1763-1840[13]) glassworks, and eventually started his own optical glass works.[14] Guinand would supply glass for the Paris Observatory telescopes and also Cauchoix.[14] He was a pioneer in the manufacture of optical glass for microscopes, telescopes, glasses and other optical instruments.
Pierre-Louis Guinand | |
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Born | 20 April 1748 |
Died | 13 February 1824 Les Brenets, Canton of Neuchâtel | (aged 75)
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SPIE Proceedings (Large Lenses and Prisms - London, United Kingdom Tuesday 27 March 2001)
One of the first Swiss known to have endeavored in optics production, Pierre-Louis Guinand (1748—1824) was an amateur telescope maker. He was born in La Sagne in the state of Neuchâtel. As good quality flint glass was difficult to obtain at the time, Guinand put himself to the task of producing it. After painstaking searches and trials, he succeeded in producing flawless flint glass of large dimensions.
Between 1784 and 1790, Pierre Louis Guinand, a Swiss craftsman, taught himself the basic skills of glassmaking and began to experiment with optical glass.
Methods of making large disks of flint glass were discovered in the late 18th century by Pierre Louis Guinand (1748–1824), a Swiss optician, who became associated with the German optician and physicist Joseph von Fraunhofer.