Three stages in the manufacture of a plastic haptic contact lens by G. Nissel & Co. Ltd
Three stages in the manufacture of a plastic haptic contact lens by G. Nissel & Co. Ltd., London, c.1982.
- Measurements:
-
overall: x x , , .03kg
machine blank: 3 mm x 60 mm x 60 mm, ,
formed blank: 25 mm x 60 mm x 60 mm, ,
lens on plaster former: 25 mm x x , 27 mm,
- Materials:
- plastic and plaster-of-Paris
- Object Number:
- 1982-389 Pt1
- type:
- contact lens
