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BSI BS 2738:1985

Specification for tolerances on optical properties of mounted spectacle lenses
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BSI BS 2738:1985

Specification for tolerances on optical properties of mounted spectacle lenses

PUBLISH DATE 1985
BSI BS 2738:1985
Specifies tolerance requirements for lens power, cylinder axes, base setting and power of prisms, and centration for spectacle lenses ready for wear. Includes tolerances for progressive power lenses. Recommendations for characteristics, related to tolerances which cannot be specified, are given in an appendix.
SDO BSI: British Standards Institution
Document Number 2738
Publication Date Jan. 31, 1985
Language en - English
Page Count
Revision Level
Supercedes
Committee CH/172
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