BS EN ISO 8624. Ophthalmic optics. Spectacle frames. Measuring system and terminology
|Standard number:||19/30373688 DC|
|Status:||Draft for Comment|
- 11.040.70 Ophthalmic equipment
This document specifies a measuring system for spectacle frames and related terminology. It is applicable to spectacle frames with fronts that are intended to be symmetrical.
Minor asymmetry of only the nasal bearing surfaces has been included in this edition. Since such asymmetry does not affect the lens shapes, only the definition of bridge height is affected, having an amendment in its note 2 to entry.