MACHINE FOR COATING AN OPTICAL ARTICLE WITH AN ANTI-SOILING COATING COMPOSITION AND METHOD FOR USING THE MACHINE

摘要

A machine for coating an optical article with an anti-soiling coating composition, includes a vacuum chamber (8) configured to receive the optical article, a vacuum pump (20) connected to the vacuum chamber (8), a plasma generator (11) configured to carry out a vacuum plasma treatment of the optical article, an evaporation device (10) configured to carry out a vacuum evaporation treatment of the composition for depositing it on the optical article, a control unit (2) controlling the plasma generator for removing an initial outermost anti-soiling coating of the article, controlling the evaporation device for recoating the article with the anti-soiling coating composition, being configured to causes the vacuum pump (20) to suck gases from the chamber (8) during vacuum plasma treatment and being further configured to causes the vacuum pump (20) not to suck gases from the chamber (8) during vacuum evaporation treatment.

主权项

1. A method for using a machine for coating an optical article with an anti-soiling coating composition, the machine including a vacuum chamber having an interior space configured to receive the optical article, a vacuum pump connected to the vacuum chamber, a plasma generator configured to carry out a vacuum plasma treatment of the optical article in the vacuum chamber, an evaporation device configured to carry out a vacuum evaporation treatment of the anti-soiling coating composition for depositing the anti-soiling coating composition on the optical article in the vacuum chamber, and a control unit configured to control both the plasma generator and the evaporation device, the method comprising:
selecting the optical article having an initial outermost anti-soiling coating; loading the optical article into the vacuum chamber of the machine; loading the anti-soiling coating composition into the vacuum chamber; starting operation of the vacuum pump of the machine and controlling the vacuum pump with the control unit to cause the vacuum pump to suck gases from the vacuum chamber; carrying out the vacuum plasma treatment with the plasma generator and controlling the plasma generator with the control unit to remove the initial outermost anti-soiling coating of the optical article; controlling the vacuum pump with the control unit to cause the vacuum pump not to suck gases from the vacuum chamber; carrying out the vacuum evaporation treatment with the evaporation device and controlling the evaporation device with the control unit to recoat the optical article with the anti-soiling coating composition; and unloading the optical article from the vacuum chamber.