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Edger
| Глоссарий терминов и сокращений по оптическим линзам |
A machine used to reduce a lens to a desired size and shape of a frame with a desired edge contour.
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Edging, английский
- Edging a lens means hogging it down from its original circular shape to the precise size and shape needed for it to fit into the wearer’s frame. effective diameter (ed) – two times the longest radius of any given shape or lens. this value will give the smallest theoretical diameter needed to cut out any given shape, assuming the center of that blank was superimposed over the geometric center of the shape. ed’s are especially critical in high rxs to determine appropriate blank size and lens thickness.
- Using the edge of the climbing shoe on a foothold. in the absence of footholds, smearing is used.
Edged lens, английский
A lens that has been ground to prescription and cut to the size and shape of an eyeglass frame.
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