Optical units are dimensionless units of length used in optical microscopy. They are used to express distances in terms of the numerical aperture of the...
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Apollo PGNCS (section Optical units)
convert inertial platform angles to signals usable for servo control optical units, one for the CM and a different one for the LM a mechanical frame, called...
10 KB (1,277 words) - 04:17, 26 July 2023
Network interface device (redirect from Optical Network Unit)
both active optical networks and passive optical networks. An ONT can work in Single Family Unit/SFU mode (modem/bridge) or Home Gateway Unit/HGU mode (router)...
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Absorbance (redirect from Optical density)
milli-absorbance unit (mAU) or milli-absorbance unit-minutes (mAU×min), a unit of absorbance integrated over time. Absorbance is related to optical depth by A...
21 KB (2,915 words) - 23:49, 20 December 2023
Dioptre (redirect from Dpt (unit))
international name or symbol for this unit of measurement—within the international system of units, this unit for optical power would need to be specified...
9 KB (1,013 words) - 07:34, 24 January 2024
Caesium standard (section Optical units)
to the IPK. Unlike the units relating to mass, energy, temperature, amount of substance, and electromagnetism, the optical units were not massively redefined...
21 KB (2,489 words) - 23:25, 3 May 2024
SI unit for optical power is the inverse metre (m−1), which is commonly called the dioptre (symbol: dpt). Converging lenses have positive optical power...
3 KB (307 words) - 15:20, 11 May 2024
value of the multiple of the basic unit of rate, e.g., OC-48. The base unit is 51.84 Mbit/s. Thus, the speed of optical-carrier-classified lines labeled...
7 KB (992 words) - 14:57, 26 May 2024
Atomic clock (redirect from Optical lattice clock)
clocks improve based on optical clocks or the Rydberg constant around 2030. Technological developments such as lasers and optical frequency combs in the...
148 KB (15,882 words) - 18:03, 25 May 2024
Fiber-optic cable (redirect from Optical fiber cable)
cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to...
33 KB (3,215 words) - 19:57, 21 May 2024
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers find wide usage...
96 KB (11,919 words) - 17:19, 23 May 2024
level components of the computer's central processing unit (CPU). These will be nonlinear optical crystals used to manipulate light beams into controlling...
31 KB (3,436 words) - 12:07, 21 May 2024
Nazionale di Astrofisica) Osservatorio Astronomico di Padova. The Telescope Optical Unit development is funded by the Italian Space Agency, the Swiss Space Office...
15 KB (1,406 words) - 16:06, 17 January 2024
An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion...
17 KB (1,768 words) - 05:06, 19 May 2024
In computing, an optical disc drive is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of...
81 KB (9,126 words) - 16:58, 25 April 2024
fiber-optic communication, a single-mode optical fiber (SMF), also known as fundamental- or mono-mode, is an optical fiber designed to carry only a single...
14 KB (1,704 words) - 06:54, 19 May 2024
Optical tweezers (originally called single-beam gradient force trap) are scientific instruments that use a highly focused laser beam to hold and move...
72 KB (9,479 words) - 22:50, 24 April 2024
appropriate range of wavelengths and power levels. On the display unit, the measured optical power and set wavelength is displayed. Power meters are calibrated...
13 KB (1,820 words) - 17:05, 22 May 2022
Hertz (redirect from Hertz (unit))
SI Brochure: Unit of time (second) National Research Council of Canada: Cesium fountain clock National Research Council of Canada: Optical frequency standard...
16 KB (1,687 words) - 05:29, 6 May 2024
transfer rates vary depending upon the optical technology used. One of the first examples of an optical jukebox was the unit designed and built at the Royal...
10 KB (1,384 words) - 02:54, 12 October 2022
i {\displaystyle i} denotes the imaginary unit. The optical conductivity is most often measured in optical frequency ranges via the reflectivity of polished...
4 KB (480 words) - 00:44, 21 November 2023
Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about...
36 KB (4,889 words) - 20:22, 23 April 2024
An optical fiber connector is a device used to link optical fibers, facilitating the efficient transmission of light signals. An optical fiber connector...
28 KB (2,557 words) - 16:15, 9 May 2024
Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an...
18 KB (2,294 words) - 01:16, 16 April 2024
"Branching Unit (BU) submarine systems" (PDF). Retrieved February 5, 2006.[permanent dead link] (404 on 11 Oct 2013) Computer, A. "US6290399B1 - Optical submarine...
3 KB (317 words) - 20:24, 1 May 2024
(non-power-consuming) optical splitters, and a number of optical network units (ONUs) or optical network terminals (ONTs), which are near end users. There...
42 KB (5,527 words) - 09:52, 6 May 2024
Wavenumber (redirect from Kayser (unit))
quantities other than spatial frequency. For example, in optical spectroscopy, it is often used as a unit of temporal frequency assuming a certain speed of light...
14 KB (1,785 words) - 14:23, 24 April 2024
due to lower per-unit prices than other types of media. The Optical Storage Technology Association (OSTA) promoted standardized optical storage formats...
66 KB (6,679 words) - 22:29, 23 May 2024