Optical glass containing lanthanum

Made:
1980 in St Asaph
maker:
Chance-Pilkington

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Optical glass containing lanthanum, refractive index = 1.689, v = 49.5, by Chance-Pilkington, St. Asaph,Clwyd, Wales, 1980.

Details

Category:
Glass Technology
Object Number:
1980-473 Pt3
Materials:
glass and lanthanum
credit:
Chance-Pilkington