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ČSN is a protected designation of Czech national technical standards.
Ophthalmic optics - Semi-finished spectacle lens blanks - Part 2: Specifications for progressive-power and degressive-power lens blanks
Standard published on 1.10.2016
Selected format:Ophthalmic optics - Semi-finished spectacle lens blanks - Part 1: Specifications for single-vision and multifocal lens blanks
WITHDRAWN published on 1.8.1998
Selected format:Ophthalmic optics - Semi-finished spectacle lens blanks - Part 1: Specifications for single-vision and multifocal lens blanks
WITHDRAWN published on 1.8.2006
Selected format:Ophthalmic optics - Semi-finished spectacle lens blanks - Part 2: Specifications for progressive power lens blanks
WITHDRAWN published on 1.8.1998
Selected format:Ophthalmic optics - Semi-finished spectacle lens blanks - Part 2: Specifications for progressive power lens blanks
WITHDRAWN published on 1.8.2006
Selected format:Ophthalmic optics - Uncut finished spectacle lenses - Part 1: Specifications for single-vision and multifocal lenses
Standard published on 1.10.2018
Selected format:Ophthalmic optics - Uncut finished spectacle lenses - Part 2: Specifications for power-variation lenses
Standard published on 1.10.2018
Selected format:Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods
Standard published on 1.1.2023
Selected format:Ophthalmic optics - Uncut finished spectacle lenses - Part 4: Specifications and test methods for anti-reflective coatings
Standard published on 1.2.2007
Selected format:Ophthalmic optics - Uncut finished spectacle lenses - Part 5: Minimum requirements for spectacle lens surfaces claimed to be abrasion-resistant
Standard published on 1.3.2006
Selected format:Latest update: 2026-07-14 (Number of items: 2 286 733)
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