Search results

A dioptre (British spelling) or diopter (American spelling), symbol dpt or D, is a unit of measurement with dimension of reciprocal length, equivalent...

A diopter sight is an aperture sight component used to assist the aiming of ranged weapons, mainly firearms, airguns, and crossbows. Diopters function...

up diopter in Wiktionary, the free dictionary. In modern usage, diopter or dioptre is a measure of the optical power of an optical system. Diopter may...

to achieve the illusion of deep focus with optical tricks (split-focus diopter) or by compositing two or more images together using focus stacking. The...

heavier recoil buffer for increased reliability and a 200-500m rotary diopter rear sight. The Ak 4 was manufactured from 1965 to 1985 by both Carl Gustafs...

Prescribing Prism". www.aao.org. Retrieved 2017-11-01. "the definition of prism diopter". Dictionary.com. Retrieved 2017-11-01. Jenean, Carlton (2000). Frames...

only about 1/2 + diopter on the red lens. However, some people with corrective glasses are bothered by difference in lens diopters, as one image is a...

20 m (21.9 yd) increments. For low-visibility use, a reversible clip-on diopter with two self-luminous tritium-powered inserts (later carbon-14, one-side...

least −1.00 diopters of myopia and 5% have at least −5.00 diopters. In Australia, the overall prevalence of myopia (worse than −0.50 diopters) has been...

rifles. To obtain a usable sighting line, the diopter has to have a complementing rear sight element. Diopter and globe sighting lines are commonly used...

it is designed. In old texts, the speculum may also be referred to as a diopter or dioptra. Like an endoscope, a speculum allows a view inside the body;...

close to the shooter's eye. High end target diopters normally accept accessories like adjustable diopter aperture and optical filter systems to ensure...

difference in power of one diopter (1D) is the threshold for diagnosis of the condition. Patients may have up to 3 diopters of anisometropia before the...

Jackson cross cylinder of +/- 0.25 diopter...

available: Waffenfabrik Bern made the "S" and "K" (Klammer) diopter sights, Wyss makes the "W" diopter and Furter, Haemmerli and Gruenig & Elmiger made special...

dovetail designs) running parallel to the bore for mounting a scope or diopter sight to a rifle. These are sometimes also called "tip-off" mounts, and...

weapons, such as the HK G3 or HK MP5. The sights consist of a rear, rotating diopter drum soldered to the receiver and a hooded front post installed in the...

specified by their optical power in diopters, the reciprocal of the focal length in meters. For a close-up lens, the diopter value is positive: the bigger the...

would have a near point of 1 11   cm = 9   diopters {\displaystyle {\frac {1}{11\ {\text{cm}}}}=9\ {\text{diopters}}} . A person with hyperopia has a near...

it in 1974. Woods was severely myopic; his eyesight had a rating of 11 diopters. In order to correct this problem, he underwent successful laser eye surgery...