Preproduction sample of the first photochromic glass from Chance Pilkington

Made:: 1986-1987 in St Asaph

maker:: Chance-Pilkington

Preproduction sample of the first photochromic glass from

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Preproduction sample of the first photochromic glass from
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Preproduction sample of the first photochromic glass from Chance Pilkington, type FPX2, made in 1972, 90% to 20% transmittance for 2mm thick sample

Details

Category:: Optics

Object Number:: 1987-13

Materials:: glass

Measurements:: overall: x x 10 mm, 65 mm, .025kg

type:: ophthalmic lens blank

credit:: Chance-Pilkington

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Preproduction sample of the first photochromic glass from Chance Pilkington

Details

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