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ISO 8598-1 1st Edition, September 15, 2014 Optics and optical instruments - Focimeters - Part 1: General purpose instruments
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 8598 specifies requirements and test methods
for general purpose focimeters designed for the measurement of
vertex powers, cylinder axis, prismatic power and prism base
setting within a restricted area at a specified location of a lens.
This excludes instruments that can only measure the whole lens at
once.
It is applicable to instruments typically intended for use by
the ophthalmic community, with the capability to demonstrate
conformity of lens products with the International Standards
existing for these lenses.