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Rayleigh Roughness Criterion
Gloss is an optical property which indicates how well a surface reflects light in a specular (mirror-like) direction. It is one of the important parameters that are used to describe the visual appearance of an object. The factors that affect gloss are the refractive index of the material, the angle of incident light and the surface topography Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness.. It comprises the small, local deviations of a surface from the per .... Apparent gloss depends on the amount of ''specular'' reflection – light reflected from the surface in an equal amount and the symmetrical angle to the one of incoming light – in comparison with diffuse reflection, ''diffuse'' reflection – the amount of light scattered into other directions. Theory When light illuminates an object, it interacts with it in a number of ways: * Absorbed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gloss Light Illuminates
Gloss may refer to: Text *Gloss (annotation), an explanatory note in a text, such as: **Interlinear gloss, in linguistics and pedagogy **Biblical gloss * Glose or Gloss, a quatrain from a usually better known poem incorporated into a new poem Shininess * Gloss (optics), reflectivity of light on a surface *Gloss and matte paint, terms used for painted finishes *Lip gloss *Sickle-gloss, a silica residue found on blades Fiction *Gloss (character), a fictional character who appeared in DC Comics' series ''New Guardians'' * ''Gloss'' (film), a Russian satirical melodrama by Andrei Konchalovsky * ''Gloss'' (TV series), a New Zealand television drama, which ran from 1987 to 1990 * Gloss, a minor character in ''The Hunger Games'' People *Hugo Gloss (born 1985), Brazilian journalist and presenter *Molly Gloss (born 1944), American writer Other uses *''Dillon v. Gloss'', a 1921 U.S. constitutional court case *Global Sea Level Observing System, an Intergovernmental Oceanographic Commissio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constructive Interference
In physics, interference is a phenomenon in which two waves combine by adding their displacement together at every single point in space and time, to form a resultant wave of greater, lower, or the same amplitude. Constructive and destructive interference result from the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves, gravity waves, or matter waves. Etymology The word ''interference'' is derived from the Latin words ''inter'' which means "between" and ''fere'' which means "hit or strike", and was coined by Thomas Young in 1801. Mechanisms The principle of superposition of waves states that when two or more propagating waves of the same type are incident on the same point, the resultant amplitude at that point is equal to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Optical Topics ...
Optics is the branch of physics which involves the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behavior of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties. A B C D E F G H I J K L M N O P Q R S T U W Z See also * :Optical components * :Optical materials References External links {{Index footer Index Optics Optics Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviole ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossmeter
A glossmeter (also gloss meter) is an instrument which is used to measure specular reflection gloss of a surface. Gloss is determined by projecting a beam of light at a fixed intensity and angle onto a surface and measuring the amount of reflected light at an equal but opposite angle. There are a number of different geometries available for gloss measurement, each being dependent on the type of surface to be measured. For non-metals such as coatings and plastics the amount of reflected light increases with a greater angle of illumination, as some of the light penetrates the surface material and is absorbed into it or diffusely scattered from it depending on its colour. Metals have a much higher reflection and are therefore less angularly dependent. Many international technical standards are available that define the method of use and specifications for different types of glossmeter used on various types of materials including paint, ceramics, paper, metals and plastics. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Absence Of Bloom
Absence may refer to: Employment * Leave of absence, a period of time away from a job * Absenteeism, the habitual pattern of absence from work or duty * Absence rate, the ratio of workers with absences to total employees Sciences and philosophy * The (local) nonexistence of something * Absence of evidence, a concept in informal logic * Absence seizure, one of several kinds of seizures Arts and entertainment Music * The Absence (band), an American death metal band from Tampa, Florida * ''Absence'' (Dälek album), 2004 * ''Absence'' (Paper Route album), 2009 * ''The Absence'' (Luna Mortis album), 2009 * ''The Absence'' (Melody Gardot album), 2012 * ''Absence'' (Snowman album), 2011 * ''Absence'' (Terence Blanchard album), 2021 Other media * ''Absence'' (film), a 2014 Brazilian film *The Absence (1976 film), a Canadian drama film * ''The Absence'' (1992 film), a French-German-Spanish drama film * ''Absence'' (audio drama), a Big Finish Productions audio drama *Absent (2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contrast Gloss
Contrast may refer to: Science * Contrast (vision), the contradiction in form, colour and light between parts of an image * Contrast (statistics), a combination of averages whose coefficients add up to zero, or the difference between two means * Behavioral contrast, a phenomenon studied in psychology (behavior analysis) * Contrast agent, used to distinguish structures or fluids within a body, often shortened to just "contrast" Technology * Contrast ratio, a measure of a display system * Display contrast, of electronic visual displays Language * Contrast (linguistics), expressing distinctions between words * Contrast (literary), describing the difference(s) between two or more entities Arts and entertainment Music * The Contrast (band), an English pop band formed in 1999 * Contrast (music), the difference between parts or different instrumental sounds Albums * ''Contrast'' (Conor Maynard album), 2012 * ''Contrast'' (Matt Fax album), 2017 * ''Contrast'' (EP), by the Features, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheen
Sheen may refer to: Places * Sheen or West Sheen, an alternative name for Richmond, London, England ** East Sheen ** North Sheen ** Sheen Priory * Sheen, Staffordshire, a village and civil parish in the Staffordshire Moorlands, England * Sheenboro, Quebec, Canada, formerly Sheen Township and Sheen-Esher-Aberdeen-et-Malakoff United Township Municipality People with the given name * Sheen Kaaf Nizam (born 1947), Urdu poet and literary scholar * Sheen T. Kassouf (1929–2006), American economist Other uses * Sheen (surname) * The Venerable Servant of God Archbishop Fulton John Sheen, Catholic radio and TV personality, former Bishop of Rochester * Gloss (paint), a measure corresponding to different levels of specular reflection * A thin layer of a substance (such as oil) spread on a solid or liquid surface and causing thin-film interference * Sheen Estevez, fictional character from the Nickelodeon series ''Jimmy Neutron'' * Mr Sheen, a cleaning product * Sheen Genus, compu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specular Gloss
Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria ( AD c. 10–70). Specular reflection may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions. Law of reflection When light encounters a boundary of a material, it is affected by the optical and electronic response functions of the material to electromagnetic waves. Optical processes, which comprise reflection and refraction, are expressed by the difference of the refractive index on both sides of the boundary, whereas reflectance and absorption are the real and imaginary parts of the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destructive Interference
In physics, interference is a phenomenon in which two waves combine by adding their displacement together at every single point in space and time, to form a resultant wave of greater, lower, or the same amplitude. Constructive and destructive interference result from the interaction of waves that are correlated or coherent with each other, either because they come from the same source or because they have the same or nearly the same frequency. Interference effects can be observed with all types of waves, for example, light, radio, acoustic, surface water waves, gravity waves, or matter waves. Etymology The word ''interference'' is derived from the Latin words ''inter'' which means "between" and ''fere'' which means "hit or strike", and was coined by Thomas Young in 1801. Mechanisms The principle of superposition of waves states that when two or more propagating waves of the same type are incident on the same point, the resultant amplitude at that point is equal to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrometre
The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-" = ); that is, one millionth of a metre (or one thousandth of a millimetre, , or about ). The nearest smaller common SI unit is the nanometre, equivalent to one thousandth of a micrometre, one millionth of a millimetre or one billionth of a metre (). The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria, and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to . The longest human chromosome, chromosome 1, is approximately in length. Examples Between 1 μm and 10 μm: * 1–10 μm – length of a typical bacterium * 3–8 μm – width of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
