BS EN ISO 7921:2024 PDF

Ophthalmic optics and instruments. Near reading charts

First page of standard BS EN ISO 7921:2024

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Title (English):

BS EN ISO 7921:2024

Ophthalmic optics and instruments. Near reading charts

Document status:: Active
Format:: Electronic (PDF)
Publication date:: February 29, 2024
ICS:: 11.040.70
Technical committee:: CEN
SKU:: BS EN ISO 7921:2024

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Abstract

1 Scope This document applies to printed, projected, and electronic displays of high-contrast text that are designed for assessment and measurement of near reading acuity under photopic conditions. The definitions and requirements of this document apply to the Latin alphabet.

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BS EN ISO 7921:2024 PDF

Abstract

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Abstract

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