1 
diopterA measurement unit; refers to the refractivity in a lens

2 
diopterA unit of measure of the refractive power (strength or magnifying power) of a lens. A prescription for eyeglasses is normally written with numbers that represent diopters. Greater vision correction is [..]

3 
diopterA measure of lens power equal to the reciprocal of the focal length. Eyeglass prescriptions are generally indicated in diopters. For cameras, the diopter is used as the measure of the dioptric power f [..]

4 
diopterOn a digital camera, a diopter is a small dial or knob adjuster connected to the viewfinder. The diopter allows you to adjust the viewfinder sharpness to match your own eyesight. The diopter adjustmen [..]

5 
diopterThe diopter is part of the viewfinding system of a camera that can be adjusted to compensate for your own particular eyesight, allowing you to see the groundglass clearly.

6 
diopterUnit of lens refractive power, equal to the reciprocal of the lens focus length in meters.

7 
diopter(diAHPtur). Unit to designate the refractive power of a lens.

8 
diopterA unit of measure of the refractive power if a lens. A onediopter lens will focus parallel light rays one meter from the lens and a twodiopter lens will focus onehalf of a meter from the lens. A plus 1.0 diopter lens is convex and will converge the light rays so they focus as a visible image 1 meter past the lens. A minus 1.0 diopter lens is con [..]

9 
diopter(Gr. dioptra =optical instrument for measuring angles) The diopter is the unit of measurement for optical lenses. A one diopter lens will focus parallel light rays 1 meter from the lens [..]

10 
diopterA measure of lens power equal to the reciprocal of the focal length. Eyeglass prescriptions are generally indicated in diopters. For cameras, the diopter is used as the measure of the dioptric power f [..]

11 
diopterunit used to express the power of a lens. It is the reciprocal of the focal length expressed in meters.

12 
diopterIn modern usage, diopter or dioptre is a measure of the refractive power of an optical system.
Diopter may also refer to:
Historically, a dioptric lens
Any lens system, such as a telescope
A diopter [..]

13 
diopterA unit of measurement of the refractive power of a lens, which is equal to the reciprocal of the focal length measured in meters.

14 
diopter(n) a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists

15 
diopterAllows for a difference in eyesight acuity between two users, the two eyes of a single user, and between a camera and eyepiece.

16 
diopterUnit of optical measurement of a lens that equals the inverse of the focal length of the lens in meters.

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