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Glossy
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 direct ... [...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] |
Specular
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 respo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diffuse Reflection
Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection. An ''ideal'' diffuse reflecting surface is said to exhibit Lambertian reflection, meaning that there is equal luminance when viewed from all directions lying in the half-space adjacent to the surface. A surface built from a non-absorbing powder such as plaster, or from fibers such as paper, or from a polycrystalline material such as white marble, reflects light diffusely with great efficiency. Many common materials exhibit a mixture of specular and diffuse reflection. The visibility of objects, excluding light-emitting ones, is primarily caused by diffuse reflection of light: it is diffusely-scattered light that forms the image of the object in the observer's eye. Mechanism Diffuse reflection from solids is generally not due to surface roughness. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual Appearance
The visual appearance of objects is given by the way in which they reflect and transmit light. The color of objects is determined by the parts of the spectrum of (incident white) light that are reflected or transmitted without being absorbed. Additional appearance attributes are based on the directional distribution of reflected (BRDF) or transmitted light (BTDF) described by attributes like glossy, shiny versus dull, matte, clear, turbid, distinct, etc. Appearance of reflective objects The appearance of reflecting objects is determined by the way the surface reflects incident light. The reflective properties of the surface can be characterized by a closer look at the (micro)-topography of that surface. Structures on the surface and the texture of the surface are determined by typical dimensions between some 10 mm and 0.1 mm (the detection limit of the human eye is at ~0.07 mm). Smaller structures and features of the surface cannot be directly detected by the un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical
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, 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. Most optical phenomena can be accounted for by using the classical electromagnetic description of light. Complete electromagnetic descriptions of light are, however, often difficult to apply in practice. Practical optics is usually done using simplified models. The most common of these, geometric optics, treats light as a collection of rays that travel in straight lines and bend when they pass through or reflect from surfaces. Physical optics is a more comprehensive model of light, which includes wave effects such as diffraction and interference that cannot b ... [...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 Commissi ... [...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, ultrav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossmeter
A glossmeter (also gloss meter) is an instrument which is used to measure specular reflection 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 su ... 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 ... [...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 ... [...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 Feat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
