A dioptre (British spelling) or diopter (American spelling), symbol dpt, is a unit of measurement with dimension of reciprocal length, equivalent to one... 9 KB (1,013 words) - 07:34, 24 January 2024 |
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... 8 KB (899 words) - 20:09, 1 November 2023 |
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... 18 KB (2,342 words) - 14:36, 3 April 2024 |
Prism correction (redirect from Prism dioptre) 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"... 4 KB (571 words) - 01:05, 16 September 2022 |
A dioptra (sometimes also named dioptre or diopter, from Greek: διόπτρα) is a classical astronomical and surveying instrument, dating from the 3rd century... 4 KB (412 words) - 12:00, 4 April 2024 |
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... 38 KB (4,654 words) - 11:06, 27 March 2024 |
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... 4 KB (471 words) - 14:23, 12 January 2024 |
reciprocal centimetre or inverse centimetre (symbol: cm−1). In optics, the dioptre is a unit equivalent to reciprocal metre. Quantities measured in reciprocal... 3 KB (405 words) - 04:48, 16 October 2023 |
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... 123 KB (13,436 words) - 16:19, 1 May 2024 |
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... 22 KB (2,244 words) - 12:21, 3 March 2024 |
level viewfinder with a magnifier loupe (interchangeable with different dioptre adjusts) AE prism, prism and chimney viewfinders Vertical split image,... 13 KB (1,693 words) - 18:46, 5 April 2024 |
in the optical world. Lens clock Optical power Diopter Focometer Prism dioptre Corrective lens components Abbe refractometer "Vertometer. (n.d.)". Millodot:... 5 KB (422 words) - 04:05, 13 December 2022 |
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... 52 KB (6,379 words) - 04:30, 27 April 2024 |
further expanded by Alhazen, considered the father of modern optics. Diopter/Dioptre (unit of measurement) Dioptrice (work by Johannes Kepler) Catoptrics (study... 1 KB (159 words) - 01:35, 24 October 2023 |
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... 1 KB (141 words) - 15:14, 20 September 2022 |
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... 28 KB (3,329 words) - 16:31, 25 April 2024 |
ergonomic polymer pistol grip and trigger guard unit, and updated rotary dioptre rear sight. During the ARMY-2021 exhibition, an optional cheek riser (a... 66 KB (6,546 words) - 12:20, 4 May 2024 |
catadioptrics, catoptrics, catoptromancy, catoptrophobia, cyclops, diopter, dioptre, dioptrics, diplopia, eisoptrophobia, emmetropia, hemianopsia, myopia,... 1 KB (1,336 words) - 06:14, 16 April 2024 |
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... 28 KB (187 words) - 12:02, 30 April 2024 |
lens. If the focal length is in metres, this gives the optical power in dioptres (inverse metres). Lenses have the same focal length when light travels... 56 KB (6,819 words) - 08:29, 2 May 2024 |
Minimum deviation Multiple-prism dispersion theory Prism compressor Prism dioptre Prism spectrometer Prism (geometry) Theory of Colours Triangular prism... 14 KB (1,727 words) - 06:33, 7 April 2024 |
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... 88 KB (9,241 words) - 12:43, 6 May 2024 |
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... 13 KB (38 words) - 06:30, 8 March 2023 |
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... 14 KB (1,836 words) - 15:08, 28 April 2024 |
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... 4 KB (402 words) - 02:20, 18 November 2023 |
diopter in Wiktionary, the free dictionary. In modern usage, diopter or dioptre is a measure of the refractive power of an optical system. Diopter may... 615 bytes (111 words) - 14:02, 26 July 2015 |
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... 44 KB (6,425 words) - 13:18, 21 March 2024 |