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BSI PD ISO/TR 11826:2024

BSI PD ISO/TR 11826:2024

$167.15

Ophthalmic optics. Spectacle lenses. Aspects of three-dimensional properties and reference markings

Published By Publication Date Number of Pages
BSI 2024 34
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Technical background
4.1 General
4.2 Spectacle lenses
10 4.3 Spectacle frames
11 5 Influence of three-dimensional effects and necessity to deal with them
5.1 Optical effects
15 5.2 Reference points on front surface versus back surface meeting the eye in as-worn position
18 5.3 Positioning errors from the images of markings on the back surface
5.3.1 General
20 5.3.2 Simulation results
23 6 Different approaches to specifying measurement positions and alignment
6.1 General
24 6.2 Reference coordinate systems defined by engravings
6.2.1 General
6.2.2 Reference coordinate system for front side engravings
25 6.2.3 Reference coordinate system for back side engravings
27 6.2.4 Data Communication Standard (DCS) from the Vision Council
29 6.3 Summary
30 7 Conclusion
32 Bibliography

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BSI PD ISO/TR 11826:2024
$167.15