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US 7,118,219 B2Granted
Test tool for optometry
AssigneeHoya Corporation
InventorTakashi Itagaki
Life of this patent
Estimating the term…
Abstract
An test tool for optometry includes a lens holding frame and a clip. The lens holding frame pivotally supports a trial lens to be mounted. The clip is attached to a rear side of the lens holding frame to clamp glasses. The lens holding frame has a pair of axi-symmetrical C-shaped rims having open ends and opposing closed ends, and a connecting portion that connects the opposing closed ends of the rims. Each rim has an inner surface that forms an accommodating space for holding the trial lens to be pivotal and movable in a left-to-right direction.
Claims11
A test tool for optometry comprising:
- a lens holding frame for pivotally supporting a trial lens to be mounted, and a clip attached to a rear side of said lens holding frame to clamp glasses, wherein
- said lens holding frame comprises a pair of axi-symmetrical C-shaped rims having open ends and opposing closed ends, and a connecting portion that connects at least a central portion of each of the opposing closed ends of the rims, and
- each of said rims has an inner surface that forms an accommodating space for holding the trial lens to be pivotal and movable in a left-to-right direction.
Dependencies are inferred from the claim text.