|
|
|
|
|
|
|
|
|
Biconcave
Глоссарий терминов и сокращений по оптическим линзам |
A lens style where both front and back surfaces are minus (concave).
|
Двояковогнутый, русский
|
|
Biconvex, английский
A lens style where both the front and back surfaces are plus (convex).
Bevel edger, английский
A machine by which an uncut lens is given a bevel on its edge by a special lens grinding wheel. bi-centric grinding (slab off) – the process of grinding base up prism to correct vertical imbalance.
|
|
|
|
|
|
|