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Color Wheel (optics) ), while non-wheel devices include scrollers and semaphore types with lever arms (e.g., on the 1897-1917 Grand Army Plaza fountain).
A color wheel or other switch for changing a projected hue (e.g., for an optical display) is a device that uses different optics filters or color gels within a light beam. Common usage includes continuously-rotating wheels for seasonal home displays (e.g., at Christmas) and controllable color wheels for a particular instrument (e.g., SeaChanger Color Engine for stage lighting Stage lighting is the craft of lighting as it applies to the production of theater, dance, opera, and other performance arts. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Color Wheel 1895
Color (American English) or colour (British English) is the visual perception, visual perceptual Physical property, property deriving from the spectrum of light interacting with the photoreceptor cells of the eyes. Color categories and physical specifications of color are associated with objects or materials based on their physical properties such as light absorption, reflection, or emission spectra. By defining a color space, colors can be identified numerically by their coordinates. Because perception of color stems from the varying spectral sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells. These physical or physiological quantifications of color, however, do not fully explain the psychophysics, psychophysical perception of color appearance. Color science includes the color vision, perception of color by the human eye, eye and brain, the origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
InFocus LP425z Single Chip DLP - 4-segment Color Wheel - Green Blue
InFocus Corporation is an American privately owned company based in the state of Oregon. Founded in 1986, the company develops, manufactures, and distributes DLP and LCD projectors and accessories as well as large-format touch displays, software, LED televisions, tablets and smartphones. InFocus also offers video calling services. Formerly a NASDAQ listed public company, InFocus was purchased by Image Holdings Corp., owned by John Hui, in 2009 and is now a wholly owned subsidiary headquartered in Tigard, Oregon. History InFocus was formed by Steve Hix and Paul Gulick in 1986. With Planar Systems and Clarity Visual Systems, it is one of three companies in the computer display industry started by people who formerly worked for Tektronix. The company moved into a new headquarters building in Wilsonville, Oregon, in 2002. At that time the company employed 1,200 people. In mid-2005 InFocus acquired the company TUN (The University Network), which provided digital media and thin s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filter (optics)
An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the optical path, which are either dyed in the bulk or have interference coatings. The optical properties of filters are completely described by their frequency response, which specifies how the magnitude and phase of each frequency component of an incoming signal is modified by the filter. Filters mostly belong to one of two categories. The simplest, physically, is the absorptive filter; then there are interference or dichroic filters. Many optical filters are used for optical imaging and are manufactured to be transparent; some used for light sources can be translucent. Optical filters selectively transmit light in a particular range of wavelengths, that is, colours, while absorbing the remainder. They can usually pass long wavelengths only (longpass), short wavelengths only (shortpass), or a band of wavelengths, blocki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Color Gel
Color (American English) or colour (British English) is the visual perceptual property deriving from the spectrum of light interacting with the photoreceptor cells of the eyes. Color categories and physical specifications of color are associated with objects or materials based on their physical properties such as light absorption, reflection, or emission spectra. By defining a color space, colors can be identified numerically by their coordinates. Because perception of color stems from the varying spectral sensitivity of different types of cone cells in the retina to different parts of the spectrum, colors may be defined and quantified by the degree to which they stimulate these cells. These physical or physiological quantifications of color, however, do not fully explain the psychophysical perception of color appearance. Color science includes the perception of color by the eye and brain, the origin of color in materials, color theory in art, and the physics of electro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Beam
A light beam or beam of light is a directional projection of light energy radiating from a light source. Sunlight forms a light beam (a sunbeam) when filtered through media such as clouds, foliage, or windows. To artificially produce a light beam, a lamp and a parabolic reflector is used in many lighting devices such as spotlights, car headlights, PAR Cans, and LED housings. Light from certain types of laser has the smallest possible beam divergence. Visible light beams From the side, a beam of light is only visible if part of the light is scattered by objects: tiny particles like dust, water droplets (mist, fog, rain), hail, snow, or smoke, or larger objects such as birds. If there are many objects in the light path, then it appears as a continuous beam, but if there are only a few objects, then the light is visible as a few individual bright points. In any case, this scattering of light from a beam, and the resultant visibility of a light beam from the side, is kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christmas
Christmas is an annual festival commemorating the birth of Jesus Christ, observed primarily on December 25 as a religious and cultural celebration among billions of people around the world. A feast central to the Christian liturgical year, it is preceded by the season of Advent or the Nativity Fast and initiates the season of Christmastide, which historically in the West lasts twelve days and culminates on Twelfth Night. Christmas Day is a public holiday in many countries, is celebrated religiously by a majority of Christians, as well as culturally by many non-Christians, and forms an integral part of the holiday season organized around it. The traditional Christmas narrative recounted in the New Testament, known as the Nativity of Jesus, says that Jesus was born in Bethlehem, in accordance with messianic prophecies. When Joseph and Mary arrived in the city, the inn had no room and so they were offered a stable where the Christ Child was soon born, with angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SeaChanger Color Engine
The SeaChanger Color Engine is an electro-mechanical device that is used to control light color in entertainment-industry lighting applications. The unit employs four overlapped color filter wheels, inserted into a light beam near its source, to produce colored light. This is in contrast to color scrollers, which insert color filter ribbons into a light beam. The color engine, which was released by Ocean Thin Films in 2005, is designed to fit into the Source Four The Electronic Theatre Controls (ETC) Source Four (also known unofficially as Source 4 or S4) is an ellipsoidal reflector spotlight (ERS) used in stage lighting. First released in 1992, the Source Four was invented by David Cunningham and feature ... lighting instrument made by Electronic Theatre Controls.SeaChanger Intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stage Lighting
Stage lighting is the craft of lighting as it applies to the production of theater, dance, opera, and other performance arts. Stage Lighting Design Principle and Process Several different types of s are used in this discipline. theatrecrafts' Types of Lanterns. In addition to basic lighting, modern stage lighting can also include special effects, such as [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bailey Fountain
''Bailey Fountain'' is an outdoor sculpture in New York City at the site of three 19th century fountains in Grand Army Plaza, Brooklyn, New York, United States. Renovated in 1956 and 2005-06, the 1932 fountain was funded by philanthropist Frank Bailey as a memorial to his wife. After 1974 thefts, some sculpture elements were stored for safekeeping. Fountain of the Golden Spray The Fountain of the Golden Spray of 1867 with a single jet of water was part of the 1867 Grand Army Plaza design. Dome fountain The 1873 dome fountain by Calvert Vaux replaced the 1867 fountain with a two-tiered, double-domed structure of cast iron and molded sections of ''Beton Coignet''.Beton Coignet was a method of preparing a very durable concrete which, nonetheless, lent itself to very detailed molds. At the time, the process was thought to rival the very best stonecutting, but was a much cheaper process. The interior of the Cleft Ridge Span in Prospect Park, near the Audubon Center at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Childrens Museum Of Indianapolis - Color Wheel
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanisms (engineering)
Mechanism may refer to: *Mechanism (engineering), rigid bodies connected by joints in order to accomplish a desired force and/or motion transmission *Mechanism (biology), explaining how a feature is created *Mechanism (philosophy), a theory that all natural phenomena can be explained by physical causes *Mechanism (sociology), a theory that all social phenomena can be explained by the existence of a deterministic mechanism * "The Mechanism", song by Disclosure * ''The Mechanism'' (TV series), a Netflix TV series See also * Machine *Machine (mechanical) * Linkage (mechanical) * Mechanism design, the art of designing rules of a game to achieve a specific outcome * Mechanism of action, the means by which a drug exerts its biological effects * Defence mechanism, unconscious mechanisms aimed at reducing anxiety * Reaction mechanism, the sequence of reactions by which overall chemical change occurs *Antikythera mechanism The Antikythera mechanism ( ) is an Ancient Greek hand-power ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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