BS 2738:1985

Specification for tolerances on optical properties of mounted spectacle lenses

BSI Group, 01/31/1985

Publisher: BS

File Format: PDF

$125.00$251.46

Description

Published:31/01/1985

Note:This product is unavailable in Ukraine, Russia, Belarus

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.

All current amendments available at time of purchase are included with the purchase of this document.

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