сфера

Империјалистички систем основан од стране Јапана, који се састојао од других азијских земаља током раног 20. века. Јапан је смањио своје чланове на марионетске народе, узимајући ...

размака зеница (РЗ)

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The distance (measured in mm) between the center of your pupils of your eyes when looking far away in the distance. If the prescription lenses are not set at the same distance as ...

ултраљубичасто (УВ) зрачења

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Invisible to the eye, prolonged exposure to solar UV radiation may result in acute and chronic health effects to the eyes. UVC rays are the highest energy, most dangerous type of ...

видљива светлост

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The part of the light spectrum that the eye recognizes as color. The eye can be protected from excessive amounts of visible light through protective eyewear.

контраст

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The difference in brightness between the light and dark parts of an image. A higher contrast lens provides greater visual acuity.

диоптрија

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Unit of lens refractive power, equal to the reciprocal of the lens focus length in meters.

вид на даљину

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Most people start to suffer from vision deterioration around age 40. The eye's crystalline lens changes shape depending on the distance of the object being viewed. This lens ...