Eyeglasses lens evaluation device
AssigneeHoya Lens Thailand Ltd.
InventorHua Qi
Life of this patent
Estimating the term…
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AssigneeHoya Lens Thailand Ltd.
InventorHua Qi
Estimating the term…
An eyeglasses lens evaluation device includes a fixation point setting part to set a fixation point on an evaluation target space and set a line of sight passing position on eyeglasses lenses when a wearer wears the eyeglasses lenses and looks at the fixation point, an apparent position calculating part to calculate an apparent position of each of a plurality of evaluation points set on the evaluation target space in a state where the wearer wears the eyeglasses lenses and fixates the wearer's eyes on the fixation point via the line of sight passing positions, a difference calculating part to calculate, for each of the plurality of evaluation points, a difference between the apparent position and a reference position, and an evaluation index calculating part to calculate an evaluation index by taking statics of the difference for each of the plurality of evaluation points calculated by difference calculating part.
An eyeglasses lens evaluation device, comprising:
Dependencies are inferred from the claim text.