Molds for use in contact lens production

Details Molds for use in contact lens production Molds for use in contact lens production

B - Operations, Transporting

29

C

B29C 33/00 (2006.01) B29D 11/00 (2006.01)

Patent

CA 2632721

The invention provides molds useful in the production of contact lenses having seamless edges and in which molds movement of one mold half in relation to the other mold half is decreased. The results are attained by providing mold halves with shoulder stops and seam-matching features.

La présente invention concerne des moules se révélant utiles lors de la production de lentilles de contact possédant des bords dépourvus de couture et dans lesquels le déplacement d~une moitié de moule par rapport à l~autre moitié de moule est réduit. Ces moules sont obtenus grâce à la formation de moitiés de moule dotées de butées d~épaule et de caractéristiques correspondant à la couture.

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