DIN EN ISO 21987:2017-12
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DIN EN ISO 21987:2017-12

Ophthalmic optics - Mounted spectacle lenses (ISO 21987:2017); German version EN ISO 21987:2017

Summary

Establish requirements for finished, mounted prescription eyewear for refractive power, prismatic power, prism imbalance and prism reference point placement and mechanical tolerances of segment/fitting cross placement.

Technical characteristics

Publisher Deutsche Institut für Normung e.V. (DIN)
Publication Date 12/01/2017
Page Count 37
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Weight (in grams) ---
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