Spectacle lens supply system, program therefor, prism amount determination device, prism amount determination method, and method for producing spectacle lens
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Feb 19, 2015
filing date -
Feb 19, 2014
priority date (Note) -
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Abstract
An aligning prism amount determination device to determine an aligning prism amount for correcting fixation disparity of a spectacle wearer, having the fixation disparity, includes a determiner to determine an aligning prism amount to be uniformly included in the spectacle lens for correcting the fixation disparity, based on a first aligning prism amount obtained by measuring an aligning prism amount of the spectacle wearer at an eye examination distance corresponding to a first distance, a second aligning prism amount obtained by measurement at an eye examination distance corresponding to a second distance shorter than the first distance, and information used for allocation of the first aligning prism amount and the second aligning prism amount, within a prism prescription range between the first aligning prism amount and the second aligning prism amount.
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