Lens, in particular, an Ophthalmic Lens, a Method and Device for Producing a Lens, and a Casting Package Comprising the Lens

A method for producing a lens, in particular a spectacle lens, comprising:

• obtaining a lens main body;
• obtaining a mold shell;
• arranging the main body and the mold shell in such a way that a cavity is formed between the main body and the mold shell;
• applying a sealing tape to the main body and mold shell to thereby seal the cavity formed between the main body and the mold shell to obtain a casting package;
• the casting package having at least one opening;
• pressing a sealing part against the casting package at the at least one opening;
• filling the cavity with a casting resin through the at least one opening;
• removing the sealing tape;
• and
• removing the mold shell to release the lens;
• wherein filling the cavity comprises filling the cavity with the casting resin from a casting resin reservoir through a supply line coupled with the sealing part;
• the sealing part comprising at least one elastic layer adapted for resting on the casting package at least during the filling;
• and
• wherein a gap dimension of the cavity is smaller than one thousand micrometers.

A system for producing a lens, in particular a spectacle lens, the system comprising:

• a mold shell;
• a holding apparatus configured for receiving a casting package for filling, the casting package comprising a lens main body and the mold shell;
• the mold shell configured to engage the main body and define a cavity therebetween, wherein the cavity has a gap dimension that is smaller than one thousand micrometers;
• a casting resin reservoir, a supply line communicating with the reservoir, and a sealing part coupled with the supply line, the sealing part adapted for engaging and filling the cavity with casting resin from the reservoir through at least one opening in the casting package;
• and
• a pressing device for pressing the sealing part and casting package against one another.