公开(公告)号：ES2119109T3

公开(公告)日：1998-10-01

申请号：ES94401927

申请日：1994-08-31

Applicant: ESSILOR INT

Inventor： TARSHIANI YASSIN Y ,  BORYSLAWSKI JOSEPH

IPC: B29C35/02 ,  B29C35/08 ,  B29C35/16 ,  B29C45/78 ,  B29D11/00

Abstract: A method for casting plastic lenses is disclosed in which lens forming materials including at least one liquid monomer and at least one photosensitive initiator are injected into a mold (8,48). The lens forming materials in the mold are subjected to ultraviolet light. The mold assembly is cooled in a liquid cooling bath (38). The temperature of the lens forming material within the mold is monitored, and the ultraviolet light is turned off when the temperature reaches a predetermined upper set point temperature. The ultraviolet light is turned on again when the temperature falls to a predetermined lower set point temperature. The process can be performed automatically with a programmable process control, which monitors the temperature, compares the temperature to the predetermined set point temperature, and turns the ultraviolet light on and off according to the results of the comparison.

公开(公告)号：DE69411468D1

公开(公告)日：1998-08-13

申请号：DE69411468

申请日：1994-08-31

Applicant: ESSILOR INT

Inventor： TARSHIANI YASSIN Y ,  BORYSLAWSKI JOSEPH

IPC: B29C35/02 ,  B29C35/08 ,  B29C35/16 ,  B29C45/78 ,  B29D11/00

Abstract: A method for casting plastic lenses is disclosed in which lens forming materials including at least one liquid monomer and at least one photosensitive initiator are injected into a mold (8,48). The lens forming materials in the mold are subjected to ultraviolet light. The mold assembly is cooled in a liquid cooling bath (38). The temperature of the lens forming material within the mold is monitored, and the ultraviolet light is turned off when the temperature reaches a predetermined upper set point temperature. The ultraviolet light is turned on again when the temperature falls to a predetermined lower set point temperature. The process can be performed automatically with a programmable process control, which monitors the temperature, compares the temperature to the predetermined set point temperature, and turns the ultraviolet light on and off according to the results of the comparison.