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, light pink fashion tint, type SP1 made by Chance Pilkington Ltd.1982-1987

Details

Category:
Optics
Object Number:
1987-5
Materials:
glass
Measurements:
overall: x x 10 mm, 60 mm, .03kg
type:
ophthalmic lens blank
credit:
Chance-Pilkington