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CEN
EN ISO 9342-2:2005

EN ISO 9342-2:2005

Current

Current

The latest, up-to-date edition.

Optics and optical instruments - Test lenses for calibration of focimeters - Part 2: Test lenses for focimeters used for measuring contact lenses (ISO 9342-2:2005)

Published date

15-11-2005

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements and recommendations for test lenses
5 Tolerances for spherical test lenses
Annex A (informative) Manufacture of test lenses for
                      calibration of focimeters used for
                      measuring contact lenses
Bibliography

ISO 9342-2:2005 specifies requirements for test lenses for focimeters that are used to measure contact lenses. These test lenses are used to find the precise correction values that are needed to convert the power values measured to back vertex power values.ISO 9342-2:2005 applies to focimeters meeting the requirements of ISO 8598.

Committee
CEN/TC 170
DevelopmentNote
Supersedes EN ISO 9342. (01/2006) Supersedes UNE EN ISO 9342. (10/2006)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

ISO 7944:1998 Optics and optical instruments — Reference wavelengths
ISO 18369-3:2017 Ophthalmic optics — Contact lenses — Part 3: Measurement methods

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