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BS EN ISO 10938:2016

BS EN ISO 10938:2016

$102.76

Ophthalmic optics. Chart displays for visual acuity measurement. Printed, projected and electronic

Published By Publication Date Number of Pages
BSI 2016 18
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This International Standard applies to displays of optotypes generated by chart projectors and all other visual acuity measurement systems that use recognition of high-contrast optotypes and that are designed for general use, including optotypes printed on media (either opaque or intended for transillumination), those generated electronically, and those produced by optical projection.

PDF Catalog

PDF Pages PDF Title
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Requirements
4.1 Optotypes
4.1.1 Size of optotypes
4.1.2 Luminance of background
11 4.1.3 Contrast of optotypes
4.1.4 Quality of presentation
4.1.5 Resolution
4.2 Requirements specific to optically projected displays
4.2.1 Focus range
4.2.2 Projector screens
4.3 Requirements specific to printed charts
4.4 Range of compliance
12 4.5 Conformity to ISO 15004-1
5 Test methods
5.1 Type tests
5.2 Conformity
5.3 Resolution
6 Accompanying documents
13 7 Marking, labelling and packaging
14 Bibliography

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BS EN ISO 10938:2016
$102.76