Ophthalmic lens blank in crown glass of refractive index 1.523

Made:: 1986-1987 in St Asaph

maker:: Chance-Pilkington

$Ophthalmic lens blank in crown glass of refractive index 1$

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Ophthalmic lens blank in crown glass of refractive index 1
Science Museum Group
© The Board of Trustees of the Science Museum

Ophthalmic lens blank in crown glass of refractive index 1.523, very light green tint, type SGO, by Chance-Pilkington, St Asaph, Denbighshire, Wales, United Kingdom, 1986-1987

Details

Category:: Optics

Object Number:: 1987-12

Materials:: glass

Measurements:: overall: x x 9 mm, 60 mm, .02kg

type:: ophthalmic lens blank

credit:: Chance-Pilkington

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Ophthalmic lens blank in crown glass of refractive index 1.523

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