Adopts ISO 8598-1:2014 to specify 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.
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Published: 01/01/2017 Number of Pages: 37File Size: 1 file , 670 KB