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Gloss (optics)
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. 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 – the amount of light scattered into other directions. Theory When light illuminates an object, it interacts with it in a number of ways: * Absorbed within it (largely responsible for colour) * Transmitted through it (dependent on the surface transparency and opacity) * Scattered from or within it (diffuse reflection, haze and transmission) * Specularly reflected from it (gloss) Variations in surface texture direc ... [...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), ''Gloss'' (film), a Russian satirical melodrama by Andrei Konchalovsky *Gloss (TV series), ''Gloss'' (TV series), a New Zealand television drama, which ran from 1987 to 1990 *List of Hunger Games characters#District 1, 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 ... [...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, ultra ... [...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 *Absen ... [...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 * D |
