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In some instances, a high-purity UV grade of fused quartz has been used to make several of the individual uncoated lens elements of special-purpose lenses including the Zeiss 105 mm f/4.3 UV Sonnar, a lens formerly made for the Hasselblad camera, and the Nikon UV-Nikkor 105 mm f/4.5 (presently sold as the Nikon PF10545MF-UV) lens.
The batching matrix B indicates the relation of the molarity in the batch (columns) and in the glass (rows). For example, the batch component SiO 2 adds 1 mol SiO 2 to the glass, therefore, the intersection of the first column and row shows "1". Trona adds 1.5 mol Na 2 O to the glass; albite adds 6 mol SiO 2, 1 mol Na 2 O, and 1 mol Al 2 O 3 ...
Hannah Glasse Glasse's signature at the top of the first chapter of her book, The Art of Cookery Made Plain and Easy, 6th Edition, 1758 Born Hannah Allgood March 1708 London, England Died 1 September 1770 (1770-09-01) (aged 62) London, England Occupation Cookery writer, dressmaker Notable works The Art of Cookery Made Plain and Easy (1747) Spouse John Glasse (m. 1724 –1747) Children 10 ...