Non-contact oil seal mechanism for rotat
๐
Article
๐
2005
๐
Elsevier Science
๐
English
โ 199 KB
This patent describes a mold (1) for the production of plastic lenses that incorporates a tubular gasket (2) to surround the mold. The lens surfaces are formed by the top and bottom molds (3,4). An elastically deformable triangular projection band ( 5) is integrally formed on the inner peripheral su