Lens grinding

This step gives the lens its corrective effect by "carving" the concave side with a diamond head. The lens is either "organic" (plastic) 75 % of the total market, or "mineral" (glass) 25 % of the market.

The single sided tapes of the Optical Film Range OF 2428, OF 2429, OF 2430, OF 2475  have been especially designed for the fastening and protection of lenses during the forming stages

Referencia	Descripción	Adhesivo	Protector	Espesor	Espesor del adhesivo	Ficha técnica
OF 2428	heat sensitive film coated with a blue acrylic adhesive. Used to secure the lens during the grinding process	SBPA	siliconized paper white	100 µ	134 µ
OF 2429	heat sensitive film coated with a blue acrylic adhesive, especially designed for the fastening and protection of lenses during the manufacturing process.	SBPA	Siliconized paper white	100 µ	134 µ
OF 2430	heat sensitive film coated with a blue acrylic adhesive. Used to secure the lens during the grinding process	SBPA	siliconized paper white		134 µ
OF 2475	heat sensitive film coated with a blue acrylic adhesive. Used to secure the lens during the grinding process	SBPA	siliconized paper white	75 µ	109 µ