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
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diopter::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | dioptre |
| Type of | unit, unit of measurement |
Examples of diopter
diopter
The lens can focus on a plane in the background and the diopter on a foreground.
From the en.wikipedia.org
Hipparchus measured the apparent diameters of the Sun and Moon with his diopter.
From the en.wikipedia.org
You will find eyeglasses for swimming with diopter for people with poor eyesight.
From the yallsjoynt.com
The convex spherical lenses with positive diopter serve to right long-sightedness.
From the yallsjoynt.com
A split diopter does not create real deep focus, only the illusion of this.
From the en.wikipedia.org
A split diopter has just a semicircular half of a close-up lens in a normal filter holder.
From the en.wikipedia.org
In the 70s, directors made frequent use of the split-focus diopter.
From the en.wikipedia.org
If the difference between the eyes is up to 3 diopter spheres iseikonic lenses can compensate.
From the en.wikipedia.org
The binoculars have quick central focusing and a diopter adjustment to reduce strain when viewing.
From the thenewstribune.com
- 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
- (Diopters) This is the optical measure of refractive power in glasses or contact lenses. It is measured as a positive, e.g. +3.50, if you are Hyperopic (long- sighted) and as a negative, e.g. -3.50, if you are Myopic (short-sighted). The larger the number the greater the refractive error.
- A unit of measurement of the optical power of lenses. For example; if a person has a prescription of -4.00, that person has 4 diopters of power in their lens. Diopters generally are measured in quarter steps like -4.00, -4.25, -4.50. ...
- (di-AHP-tur). Unit to designate the refractive power of a lens.
- Unit of measure for the refractive (light-bending) power of a lens; eye care practitioners use it in eyeglass and contact lens prescriptions. A negative number refers to nearsightedness; a positive number, farsightedness. For example, someone with -8. ...
- A unit of measurement used to describe the degree of refractive error with respect to nearsightedness, farsightedness and astigmatism.
- A diopter is one whole number on a prescription. The number of diopters on your prescription represents how much correction is needed to normalize your vision. ...
- A metric unit used in optics to measure the refractive power of a lens. Each converging lens has a focal length, defined to be the distance from the centre of the lens to the point at which the lens focuses light. ...
- The unit of focalizing power, One diopter is the power to focalize a neutral wave of light at a distance of 1 meter.
