Method for manufacturing optical elements according to a prescription
AssigneeSatisloh AG
InventorsMarc Peter, Marcel Flemming
Life of this patent
Estimating the term…
Abstract
A method for manufacturing an optical element according to a prescription is provided, including providing a combination of a block piece and a lens blank having a first face and a second face opposite to the first face, the lens blank being blocked with the first face on the block piece, surfacing and polishing the second face of the lens blank, cleaning the lens blank, hard coating the second face of the lens blank, degassing the lens blank, applying an AR-coating in a vacuum box coater, and deblocking the processed lens blank from the block piece, wherein the cleaning step includes a pre-cleaning step including a finishing drying step allowing the lens blank to be put on hold, and a deep cleaning step prior to the hard coating step.
Claims15
A method for manufacturing an optical element according to prescription, comprising:
- providing a combination of a block piece and a lens blank having a first face and second face opposite to the first face, the lens blank being blocked with the first face on the block piece;
- surfacing and polishing the second face of the lens blank;
- pre-cleaning, the lens blank, the pre-cleaning including a finishing drying which allows the lens blank to be put on hold;
- deep cleaning the lens blank;
- hard coating the second face of the lens blank;
- degassing the lens blank;
- applying an antireflection (AR)-coating in a vacuum box coater;
- and
- deblocking the lens blank from the block piece, wherein
- the pre-cleaning is applied after the polishing and is configured to remove polishing residuals, and
- the deep cleaning is applied prior to the hard coating and is applied in a different working station from a working station of the pre-cleaning.
Dependencies are inferred from the claim text.