Optically worked prism in high lead silicate flint glass (Refractional index = 1.805. V = 25.4)

Optically worked prism in high lead silicate flint glass (Refractional index = 1.805. V = 25.4), by Chance-Pilkington, St. Asaph,Clwyd, Wales, 1980.

Details

Category:
Glass Technology
Object Number:
1980-469 Pt2
Materials:
glass
type:
prism - optical
credit:
Chance-Pilkington