ISO 9342-1:2005
Optics and optical instruments - Test lenses for calibration of focimeters - Part 1: Test lenses for focimeters used for measuring spectacle lenses
- Standard No.
- ISO 9342-1:2005
- Release Date
- 2005
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 9342-1:2023
- Latest
- ISO 9342-1:2023
- Scope
- 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.
ISO 9342-1:2005 Referenced Document
- ISO 7944 Optics and optical instruments - Reference wavelengths; Technical Corrigendum 1*， 2009-07-01 Update
ISO 9342-1:2005 history
- 2023 ISO 9342-1:2023 Optics and optical instruments — Test lenses for calibration of focimeters — Part 1: Reference lenses for focimeters used for measuring spectacle lenses
- 2005 ISO 9342-1:2005 Optics and optical instruments - Test lenses for calibration of focimeters - Part 1: Test lenses for focimeters used for measuring spectacle lenses
