SS-EN-ISO-9342-1 › Historical Revision Information
Optics and optical instruments - Test lenses for calibration of focimeters - Part 1: Test lenses for focimeters used for measuring spectacle lenses (ISO 9342-1:2005)
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This part of ISO 9342 specifies requirements for test lenses for the calibration of focimeters that are used for the measurement of spectacle form lenses. NOTE It is accepted that other test lenses can also be used with powers within the given range, manufactured to the same standard of accuracy and form, but different back vertex powers. However, only lenses with integer nominal powers, as described in Annex A, can be used for the calibration of digitally-rounding focimeters.
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Designation Name
SS-EN ISO 9342-1:2005
Revision Level
2005 EDITION
Status
Superseded
Publication Date
July 28, 2005
Language(s)
English
Page Count
12