optical transmission
51optical density — noun (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation • Syn: ↑transmission density, ↑photographic density, ↑absorbance • Topics: ↑physics, ↑natural philosophy …
52transmission density — noun (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation • Syn: ↑optical density, ↑photographic density, ↑absorbance • Topics: ↑physics, ↑natural philosophy …
53transmission line — noun a conductor for transmitting electrical or optical signals or electric power • Syn: ↑cable, ↑line • Hypernyms: ↑conductor • Hyponyms: ↑coaxial cable, ↑coax, ↑coax ca …
54Metal-mesh optical filters — are optical filters made from stacks of metal meshes and dielectric. They are used as part of an optical path to filter the incoming light to allow frequencies of interest to pass while reflecting other frequencies of light. Metal mesh filters… …
55Synchronous optical networking — (SONET) and Synchronous Digital Hierarchy (SDH), are two closely related multiplexing protocols for transferring multiple digital bit streams using lasers or light emitting diodes (LEDs) over the same optical fiber. The method was developed to… …
56Passive optical network — A passive optical network (PON) is a point to multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32 128. A PON consists of an …
57Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …
58Electric power transmission — Electric transmission redirects here. For vehicle transmissions, see diesel electric transmission. 400 kV high tension transmission lines near Madrid Electric power transmission or high voltage electric transmission is the bulk transfer of… …
59Machine vision optical filters — are optical filters used in machine vision applications.Choosing the correct optical filter for machine visionMany of those developing machine vision applications know that considerable emphasis has been placed on choosing the correct lighting to …
60Data transmission — Data transmission, digital transmission, or digital communications is the physical transfer of data (a digital bit stream) over a point to point or point to multipoint communication channel. Examples of such channels are copper wires, optical… …
