bifokal cam

التركية - الإنجليزية

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bifocal

Having two focal lengths

1 : having two foci 2 : pertaining to the compound spectacle, which contains a smaller lens for near vision placed below the center of the larger lens, which is for distant vision 3 : bifocal glasses

Lenses of eyeglasses that have two distinct areas of focus The prescription in the top portion helps to see distant objects while the prescription in the bottom portion of the lens helps to see near objects There are many styles of bifocals, such as flat tops, progressive and even double bifocals

The simplest type of lens that gives the wearer more than one focal length --- two The top of the lens provides clear vision at distance (infinity) and the bottom "reading add" (or "segment") gives you clear vision at a reading distance For some people we make bifocals that have focal lengths other than infinity and reading distance, but not often

a lens that is designed with two different prescription areas to correct for both near and distance vision

Having two foci, as some spectacle lenses

having two foci; "bifocal eyeglasses

Divided into two parts, one of which corrects for distance vision and the other for near vision

Having one segment for near vision and one segment for far vision

A type of spectacle or contact lens design that includes two focal areas: one for near, one for distance

having two foci; "bifocal eyeglasses"

{s} having one portion that corrects for near vision and one for far vision (of eyeglasses)

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bifokal Cam