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Что (кто) такое infrared filter - определение
OPTICAL FITERS THAT BLOCK NEAR-INFRARED WHILE PASSING VISIBLE LIGHT
IR filter; Infrared filter; IR Cut
![Infrared Photography, [[Ibirapuera Park]]](https://commons.wikimedia.org/wiki/Special:FilePath/Auditorio,Obelisco,Marquize.jpg?width=200 "Infrared Photography, [[Ibirapuera Park]]")
Найдено результатов: 578
Infrared cut-off filter
Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near-infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating.
Photographic filter
![The 80A filter, mainly used to correct for the excessive redness of [[tungsten]] lighting, can also be used to oversaturate scenes that already have blue. The photo on the left was shot with a polarizer, while the one on the right was shot with a polarizer and an 80A filter.](https://commons.wikimedia.org/wiki/Special:FilePath/80a comparison.jpg?width=200 "The 80A filter, mainly used to correct for the excessive redness of [[tungsten]] lighting, can also be used to oversaturate scenes that already have blue. The photo on the left was shot with a polarizer, while the one on the right was shot with a polarizer and an 80A filter.")
![The ''LOMO effect'' imitates photos made with a low-cost Russian camera brand, named "LOMO". It is approximated by saturated central colors, blurred periphery, and darkened corners and edges ([[vignetting]]).}} effect.](https://commons.wikimedia.org/wiki/Special:FilePath/Verblühende Sauerkirsche.jpg?width=200 "The ''LOMO effect'' imitates photos made with a low-cost Russian camera brand, named \"LOMO\". It is approximated by saturated central colors, blurred periphery, and darkened corners and edges ([[vignetting]]).}} effect.")
CAMERA ACCESSORY CONSISTING OF AN OPTICAL FILTER
Daylight filter; Filter (photography); Lens filter; Filter ring; Filter mount; Filter thread; Cross screen filter; Photographic filters; Red Black and White filter; Camera filter; Series filter
In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path. The filter can be of a square or oblong shape and mounted in a holder accessory, or, more commonly, a glass or plastic disk in a metal or plastic ring frame, which can be screwed into the front of or clipped onto the camera lens.
infrared
![Active-infrared night vision: the camera illuminates the scene at infrared wavelengths invisible to the [[human eye]]. Despite a dark back-lit scene, active-infrared night vision delivers identifying details, as seen on the display monitor.](https://commons.wikimedia.org/wiki/Special:FilePath/Active-Infrared-Night-Vision.jpg?width=200 "Active-infrared night vision: the camera illuminates the scene at infrared wavelengths invisible to the [[human eye]]. Despite a dark back-lit scene, active-infrared night vision delivers identifying details, as seen on the display monitor.")
![Infrared light from the [[LED]] of a [[remote control]] as recorded by a digital camera](https://commons.wikimedia.org/wiki/Special:FilePath/Blue infrared light.jpg?width=200 "Infrared light from the [[LED]] of a [[remote control]] as recorded by a digital camera")
![[[Beta Pictoris]] with its planet Beta Pictoris b, the light-blue dot off-center, as seen in infrared. It combines two images, the inner disc is at 3.6 μm.](https://commons.wikimedia.org/wiki/Special:FilePath/ESO - Beta Pictoris planet finally imaged (by).jpg?width=200 "[[Beta Pictoris]] with its planet Beta Pictoris b, the light-blue dot off-center, as seen in infrared. It combines two images, the inner disc is at 3.6 μm.")
![Materials with higher [[emissivity]] appear closer to their true temperature than materials that reflect more of their different-temperature surroundings. In this thermal image, the more reflective ceramic cylinder, reflecting the cooler surroundings, appears to be colder than its cubic container (made of more emissive silicon carbide), while in fact, they have the same temperature.](https://commons.wikimedia.org/wiki/Special:FilePath/Effect of emissivity on apparent temperature.jpg?width=200 "Materials with higher [[emissivity]] appear closer to their true temperature than materials that reflect more of their different-temperature surroundings. In this thermal image, the more reflective ceramic cylinder, reflecting the cooler surroundings, appears to be colder than its cubic container (made of more emissive silicon carbide), while in fact, they have the same temperature.")
![The [[greenhouse effect]] with molecules of methane, water, and carbon dioxide re-radiating solar heat](https://commons.wikimedia.org/wiki/Special:FilePath/Greenhouse-effect-t2.svg?width=200 "The [[greenhouse effect]] with molecules of methane, water, and carbon dioxide re-radiating solar heat")
![hair salons]], c. 2010s](https://commons.wikimedia.org/wiki/Special:FilePath/Hooded dryer for infrared hair drying at hair salon - shown from three perspectives.jpg?width=200 "hair salons]], c. 2010s")
![An infrared reflectogram of ''[[Mona Lisa]]'' by [[Leonardo da Vinci]]](https://commons.wikimedia.org/wiki/Special:FilePath/Infrared reflectograms of Mona Lisa.jpg?width=200 "An infrared reflectogram of ''[[Mona Lisa]]'' by [[Leonardo da Vinci]]")
![IR satellite picture of cumulonimbus clouds over the [[Great Plains]] of the United States.](https://commons.wikimedia.org/wiki/Special:FilePath/NOAA Shares First Infrared Imagery from GOES-17 (43904870711).gif?width=200 "IR satellite picture of cumulonimbus clouds over the [[Great Plains]] of the United States.")
![Thermography helped to determine the temperature profile of the [[Space Shuttle thermal protection system]] during re-entry.](https://commons.wikimedia.org/wiki/Special:FilePath/STS-3 infrared on reentry.jpg?width=200 "Thermography helped to determine the temperature profile of the [[Space Shuttle thermal protection system]] during re-entry.")
![false-color]] infrared space telescope image has blue, green and red corresponding to 3.4, 4.6, and 12 [[μm]] wavelengths, respectively.](https://commons.wikimedia.org/wiki/Special:FilePath/Wide-field Infrared Survey Explorer first-light image.jpg?width=200 "false-color]] infrared space telescope image has blue, green and red corresponding to 3.4, 4.6, and 12 [[μm]] wavelengths, respectively.")
ELECTROMAGNETIC RADIATION WITH LONGER WAVELENGTHS THAN THOSE OF VISIBLE LIGHT
Infra-red radiation; Infra-red; Infrared radiation; Near-infrared; Infrared Radiation; Infrared light; Near infrared; Infra-red light; Near Infrared; 1550 nm; LWIR; MWIR; Infra red; Infared; 1300 nm; Infrared spectrum; Infra Red; Infra-Red; InfraRed; Infrared sources; Long-wave infrared; Line of light; Infrared communication; Calorific rays; Calorific Rays; Mid-infrared; Infrared rays; Thermal infrared; Infra-red reflectography; Infrared reflectography; Infrared Rays; Infrared Ray; IR-A; IR-B; IR-C; IR radiation; NIR Photons; MIR photons; Short-wavelength infrared; Infrared bands; Short-wave infrared; Mid-wave infrared; Near-infrared light; Mid infrared; 830 nm; 850 nm; Thermal infrared radiation; Applications of infrared radiation; History of infrared science; Infrared source
<electronics> (IR) Electromagnetic waves in the frequency
range just below visible light corresponding to radiated heat.
IR waves can be generated by a kind of LED and are often
used for remote controls for televisions etc. and in some
docking stations.
(1997-01-30)
infrared
ELECTROMAGNETIC RADIATION WITH LONGER WAVELENGTHS THAN THOSE OF VISIBLE LIGHT
Infra-red radiation; Infra-red; Infrared radiation; Near-infrared; Infrared Radiation; Infrared light; Near infrared; Infra-red light; Near Infrared; 1550 nm; LWIR; MWIR; Infra red; Infared; 1300 nm; Infrared spectrum; Infra Red; Infra-Red; InfraRed; Infrared sources; Long-wave infrared; Line of light; Infrared communication; Calorific rays; Calorific Rays; Mid-infrared; Infrared rays; Thermal infrared; Infra-red reflectography; Infrared reflectography; Infrared Rays; Infrared Ray; IR-A; IR-B; IR-C; IR radiation; NIR Photons; MIR photons; Short-wavelength infrared; Infrared bands; Short-wave infrared; Mid-wave infrared; Near-infrared light; Mid infrared; 830 nm; 850 nm; Thermal infrared radiation; Applications of infrared radiation; History of infrared science; Infrared source
also infra-red
1.
Infrared radiation is similar to light but has a longer wavelength, so we cannot see it without special equipment.
ADJ: ADJ n
2.
Infrared equipment detects infrared radiation.
...searching with infra-red scanners for weapons and artillery.
ADJ: ADJ n
Elliptic filter
.svg?width=200 "The frequency response of a fourth-order elliptic low-pass filter with '''ε''' = 0.5 and '''ξ''' = 1.05. Also shown are the minimum gain in the passband and the maximum gain in the stopband, and the transition region between normalized frequency 1 and '''ξ'''")
.svg?width=200 "A closeup of the transition region of the above plot.")
![Log of the absolute value of the gain of an 8th order elliptic filter in [[complex frequency space]] (s = σ + jω) with ε = 0.5, ξ = 1.05 and ω<sub>0</sub> = 1. The white spots are poles and the black spots are zeroes. There are a total of 16 poles and 8 double zeroes. What appears to be a single pole and zero near the transition region is actually four poles and two double zeroes as shown in the expanded view below. In this image, black corresponds to a gain of 0.0001 or less and white corresponds to a gain of 10 or more.](https://commons.wikimedia.org/wiki/Special:FilePath/Elliptic Filter s-Plane Response (8th Order).svg?width=200 "Log of the absolute value of the gain of an 8th order elliptic filter in [[complex frequency space]] (s = σ + jω) with ε = 0.5, ξ = 1.05 and ω<sub>0</sub> = 1. The white spots are poles and the black spots are zeroes. There are a total of 16 poles and 8 double zeroes. What appears to be a single pole and zero near the transition region is actually four poles and two double zeroes as shown in the expanded view below. In this image, black corresponds to a gain of 0.0001 or less and white corresponds to a gain of 10 or more.")
.svg?width=200 "An expanded view in the transition region of the above image, resolving the four poles and two double zeroes.")
SIGNAL PROCESSING FILTER
Cauer filter; Elliptical filter; Equiripple filter; Eliptic filter
An elliptic filter (also known as a Cauer filter, named after Wilhelm Cauer, or as a Zolotarev filter, after Yegor Zolotarev) is a signal processing filter with equalized ripple (equiripple) behavior in both the passband and the stopband. The amount of ripple in each band is independently adjustable, and no other filter of equal order can have a faster transition in gain between the passband and the stopband, for the given values of ripple (whether the ripple is equalized or not).
infra-red
ELECTROMAGNETIC RADIATION WITH LONGER WAVELENGTHS THAN THOSE OF VISIBLE LIGHT
Infra-red radiation; Infra-red; Infrared radiation; Near-infrared; Infrared Radiation; Infrared light; Near infrared; Infra-red light; Near Infrared; 1550 nm; LWIR; MWIR; Infra red; Infared; 1300 nm; Infrared spectrum; Infra Red; Infra-Red; InfraRed; Infrared sources; Long-wave infrared; Line of light; Infrared communication; Calorific rays; Calorific Rays; Mid-infrared; Infrared rays; Thermal infrared; Infra-red reflectography; Infrared reflectography; Infrared Rays; Infrared Ray; IR-A; IR-B; IR-C; IR radiation; NIR Photons; MIR photons; Short-wavelength infrared; Infrared bands; Short-wave infrared; Mid-wave infrared; Near-infrared light; Mid infrared; 830 nm; 850 nm; Thermal infrared radiation; Applications of infrared radiation; History of infrared science; Infrared source
see infrared
Infrared
ELECTROMAGNETIC RADIATION WITH LONGER WAVELENGTHS THAN THOSE OF VISIBLE LIGHT
Infra-red radiation; Infra-red; Infrared radiation; Near-infrared; Infrared Radiation; Infrared light; Near infrared; Infra-red light; Near Infrared; 1550 nm; LWIR; MWIR; Infra red; Infared; 1300 nm; Infrared spectrum; Infra Red; Infra-Red; InfraRed; Infrared sources; Long-wave infrared; Line of light; Infrared communication; Calorific rays; Calorific Rays; Mid-infrared; Infrared rays; Thermal infrared; Infra-red reflectography; Infrared reflectography; Infrared Rays; Infrared Ray; IR-A; IR-B; IR-C; IR radiation; NIR Photons; MIR photons; Short-wavelength infrared; Infrared bands; Short-wave infrared; Mid-wave infrared; Near-infrared light; Mid infrared; 830 nm; 850 nm; Thermal infrared radiation; Applications of infrared radiation; History of infrared science; Infrared source
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye.
Electronic filter
![A low-pass electronic filter realised by an [[RC circuit]]](https://commons.wikimedia.org/wiki/Special:FilePath/1st Order Lowpass Filter RC.svg?width=200 "A low-pass electronic filter realised by an [[RC circuit]]")
ELECTRONIC CIRCUIT THAT REMOVES UNWANTED COMPONENTS FROM THE SIGNAL, OR ENHANCES WANTED ONES, OR BOTH
Electronic filters; Filter (circuits); Pi filter; Pi Filter; Frequency filter; BAW filter
Electronic filters are a type of signal processing filter in the form of electrical circuits. This article covers those filters consisting of lumped electronic components, as opposed to distributed-element filters.
Optical filter
![Coloured and [[neutral-density filter]]s](https://commons.wikimedia.org/wiki/Special:FilePath/Filter-optics-1.jpg?width=200 "Coloured and [[neutral-density filter]]s")
DEVICE THAT SELECTIVELY TRANSMITS LIGHT OF CERTAIN WAVELENGTHS
Optic filter; Wedge filter; Glass filter; Optical Filters; Optical band-pass filter; Optical bandpass filter; Filter (optics); Light filter
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.
Infra-red
ELECTROMAGNETIC RADIATION WITH LONGER WAVELENGTHS THAN THOSE OF VISIBLE LIGHT
Infra-red radiation; Infra-red; Infrared radiation; Near-infrared; Infrared Radiation; Infrared light; Near infrared; Infra-red light; Near Infrared; 1550 nm; LWIR; MWIR; Infra red; Infared; 1300 nm; Infrared spectrum; Infra Red; Infra-Red; InfraRed; Infrared sources; Long-wave infrared; Line of light; Infrared communication; Calorific rays; Calorific Rays; Mid-infrared; Infrared rays; Thermal infrared; Infra-red reflectography; Infrared reflectography; Infrared Rays; Infrared Ray; IR-A; IR-B; IR-C; IR radiation; NIR Photons; MIR photons; Short-wavelength infrared; Infrared bands; Short-wave infrared; Mid-wave infrared; Near-infrared light; Mid infrared; 830 nm; 850 nm; Thermal infrared radiation; Applications of infrared radiation; History of infrared science; Infrared source
·add. ·adj Lying outside the visible spectrum at its red end;
- said of rays less refrangible than the extreme red rays.
Википедия
Infrared cut-off filter
Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block near-infrared wavelengths while passing visible light. They are often used in devices with bright incandescent light bulbs (such as slide and overhead projectors) to prevent unwanted heating. There are also filters which are used in solid state (CCD or CMOS) video cameras to block IR due to the high sensitivity of many camera sensors to near-infrared light. These filters typically have a blue hue to them as they also sometimes block some of the light from the longer red wavelengths.
