Ophthalmic lens blank in crown glass of refractive index 1.523

Ophthalmic lens blank in crown glass of refractive index 1

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

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 brown tint, type SP6, by Chance-Pilkington, St Asaph, Denbighshire, Wales, United Kingdom, 1986-1987

Details

Category:
Optics
Object Number:
1987-9
Materials:
glass
Measurements:
overall: x x 10 mm, 65 mm, .025kg
type:
ophthalmic lens blank
credit:
Chance-Pilkington