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

The Four Prism Dioptre Reflex Test (also known as the 4 PRT, or 4 Prism Dioptre Base-out Test) is an objective, non-dissociative test used to prove the...

2.0-dioptre lens placed close to a thin 0.5-dioptre lens yields almost the same focal length as a single 2.5-dioptre lens. Depth of field Dioptre f-number...

for a constant head tilt or turn. Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base"...

eye. This dramatic change in focal power of the eye of approximately 15 dioptres (the reciprocal of focal length in metres) occurs as a consequence of a...

optical power is the inverse metre (m−1), which is commonly called the dioptre (symbol: dpt). Converging lenses have positive optical power, while diverging...

A dioptra (sometimes also named dioptre or diopter, from Greek: διόπτρα) is a classical astronomical and surveying instrument, dating from the 3rd century...

well-adapted for sensing green light. Although their accommodation of 11 dioptre is comparable to that of humans and they see well in twilight because of...

level viewfinder with a magnifier loupe (interchangeable with different dioptre adjusts) AE prism, prism and chimney viewfinders Vertical split image,...

reciprocal centimetre or inverse centimetre (symbol: cm−1). In optics, the dioptre is a unit equivalent to reciprocal metre. Quantities measured in reciprocal...

natural environment is approximately 18 dioptres, roughly one-third of the eye's total power of about 60 dioptres. By 25 years of age the ability of the...

of about 20 dioptres (ability to focus at 50 mm away) in a child, to 10 dioptres at age 25 (100 mm), and levels off at 0.5 to 1 dioptre at age 60 (ability...

further expanded by Alhazen, considered the father of modern optics. Diopter/Dioptre (unit of measurement) Dioptrice (work by Johannes Kepler) Catoptrics (study...

DPT may refer to: Dpt (unit) (dioptre/diopter), most commonly a unit measuring refraction and power in a lens or curved mirror Dermatopontin, a human...

effective curvature of a lens or curved mirror; inverse of focal length dioptre (dpt = m−1) L−1 Permeability μs Measure for how the magnetization of material...

in the optical world. Lens clock Optical power Diopter Focometer Prism dioptre Corrective lens components Abbe refractometer "Vertometer. (n.d.)". Millodot:...

environments, in dome theaters, and in virtual-reality headsets. Angular diameter Dioptre Eye examination Fovea centralis Golovin–Sivtsev table, for testing visual...

amount of myopia. While PRK is a relatively safe procedure for up to 6 dioptres of myopia, the recovery phase post-surgery is usually painful. In a LASIK...

Minimum deviation Multiple-prism dispersion theory Prism compressor Prism dioptre Prism spectrometer Prism (geometry) Theory of Colours Triangular prism...

ergonomic polymer pistol grip and trigger guard unit, and updated rotary dioptre rear sight. During the ARMY-2021 exhibition, an optional cheek riser (a...

a focal length of the examiner's distance from the patient (e.g. +1.50 dioptre lens for a 67 cm working distance). Myopes display an "against" reflex...

power. In humans, the refractive power of the cornea is approximately 43 dioptres. The cornea can be reshaped by surgical procedures such as LASIK. While...

lens. If the focal length is in metres, this gives the optical power in dioptres (reciprocal metres). Lenses have the same focal length when light travels...

accommodation. If there is amplitude of accommodation between the eyes differ 0.5 dioptre or more, it is considered as unequal. Organic diseases, head trauma or...

Check up CW Close work Δ Prism dioptre D Dioptres DC Dioptres cylinder DNA Did not attend DOB Date of birth DS Dioptres sphere DV Distance vision DVD Dissociated...

this condition is MP0 = (0.25 m)Φ + 1, where Φ is the optical power in dioptres, and the factor of 0.25 m represents the assumed near point (¼ m from the...

treatment of curves embedded in a Euclidean space of arbitrary dimension Dioptre, a measurement of curvature used in optics Evolute, the locus of the centers...

service for Vive Flow being focused upon such apps. Its lenses also support dioptre adjustment so that users with eyeglass prescriptions can use the headset...

shooting 3 frames @ 2.0 frame/s Viewfinder Viewfinder Electronic with dioptre adjustment, TFT-LCD General LCD screen 1.8" / 123,000 pixels Weight 659 g...

approximately equal. Divergence excess - exodeviation is more than 15 dioptres greater for distance than near deviation. Convergence insufficiency – near...