(of a physical quantity) relating to a single wavelength of radiation. ... Spectral Control® Technology filters up to 96% of blue light, allowing only the beneficial and regulating turquoise blue light to pass through, to reduce blue blur and visible noise. How to use glare in a sentence. Use sunglasses to lessen glare. When something is spectral, it has a ghostlike quality; it seems to vanish or disappear. spectral luminous efficiency. Learn more. SPECTRAL AUDIO SIGNAL PROCESSING. ... Spectral Control® Technology filters up to 96% of blue light, allowing only the beneficial and regulating turquoise blue light to pass through, to reduce blue blur and visible noise. spectral (comparative more spectral, superlative most spectral) 1. physics (of a physical quantity) relating to a single wavelength of radiation spectral luminous efficiency. Of, relating to, or produced by a spectrum. But what exactly is the UGR value? 1.1. A clairvoyante was turned on, but could only say that the spectral figures, which she described, “had no brains”. distribution temperature of a light source. Spatial–Spectral Evidence of Glare Influence on Hyperspectral Acquisitions. Note: UWLR also meets the LEED version 4 definition of percent uplight. What is "glare"? Specular glare on the computer screen increases the time to read relatively easy text passages from the screen (Dugas-Garcia & Wierwille, 1985). Glare: Lighting entering the eye directly from luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility. “Capital” vs. “Capitol”: Do You Know Where You’re Going? The following definitions are from IDA/IES MLO-2011. The ultimate high definition vision of everything in sight. The glare is the result of the specular reflection of the beam of light from an oncoming car. The American Heritage® Stedman's Medical Dictionary if various wavelength pass through the lens material differently , the image will be out of focus. Sensors 2020, 20(16), 4374; ... the “glare” in its physical definition (and not in a general all-inclusive sense) can instead affect results more than other causes in some specific but not infrequent conditions (darker regions contrast, proximity of bright patches The glare is the result of the specular reflection of the beam of light from an oncoming car. spectral meaning: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. 2. of or relating to a spectrum. We Asked, You Answered. ... disability glare factor, DGF. the act of a person who encloses something in or as if in a casing or covering, a school giving instruction in one or more of the fine or dramatic arts, a comic character, usually masked, dressed in multicolored, diamond-patterned tights, and carrying a wooden sword or magic wand, Dictionary.com Unabridged distribution temperature of a light source. of or relating to a spectrum spectral colours. Normally a roadway would cause diffuse reflection due to its rough surface. ... Another definition of SC is the MPEG-7 spectral centroid. discomfort glare factor. Specular glare refers to the presence of bright, reflected light sources, typically reflections from ceiling luminaires. discomfort glare rating, DGR. spectral definition: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. Normally a roadway would cause diffuse reflection due to its rough surface. Gaze at him with a spectral glare, As if they already stood aghast . CIE (L*u*v*) uniform color space. discomfort glare factor. Of, or pertaining to, spectres; ghostly.quotations ▼ 1.1. A metric for color rendition using the spectral bands method was adopted by the CIE in 1948. Introduction A widely accepted definition of human comfort does not exist, but several metrics have been developed to quantify how much users appreciate environments, objects or interfaces. The following definitions are from IDA/IES MLO-2011. Noun: 1. spectre - a ghostly appearing figure; "we were unprepared for the apparition that confronted us" CIE (L*u*v*) uniform color space. A starting point for evaluating glare … Collins English Dictionary. Spectral – a RIDI Group brand ... in addition the pendant was to house two high output high definition projection systems. Describe 2020 In Just One Word? discomfort glare rating, DGR. Synonym: ghostly 1.2. CIE (L*a*b*) uniform color space. spectral colours. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. The ultimate high definition vision of everything in sight. The spectralchain-rattling and moans gave me the chills. If your language skills aren’t already top-notch, then this vocab quiz can get you up to speed! Cambridge Dictionary +Plus An experimental apparatus (glare booth) was constructed to study the effect of spectral power distribution of light sources on discomfort glare (DG) perception and its visual mechanisms. 1859, Charles Dickens, The Haunted House: 1.1.1. Keywords: LED lighting CIE, glare, visual comfort, spectral distribution, normative 1. CIE 1988 2° modified spectral luminous efficiency function for photopic vision. Lens hood (Photo Credit : ID1974/ Shutterstock) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition “Affect” vs. “Effect”: Use The Correct Word Every Time. Discomfort from specular glare occurs long before performance issues. Filters can also be attached to reduce lens flare when shooting outside in bright conditions. “Democrat” vs. “Republican”: Where Did The Parties Get Their Names? • "Dictionary" definition: A harsh uncomfortably bright light ; especially: painfully bright sunlight • Glare occurs in two ways: – Too much light – Luminance range is too large • Effects of glare: – Photobiological damage: not considered here The data acquired from global radiation and direct radiation, together with specific spectral data help to determine the amount of gasses and aerosol particles in the air and also provide information on the photo-chemical formation of secondary impurities. Published by Houghton Mifflin Company. 2002 © HarperCollins Publishers 1995, 2002. The Most Surprisingly Serendipitous Words Of The Day. Disclaimer. It is laid down in DIN EN 12464-1 as an obligatory measuring method with threshold values. UGR (Unified Glare Rating) serves to define the psychological glare (visual discomfort) of lighting installations in indoor spaces. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. (of a physical quantity) relating to a single wavelength of radiation. CIE 1988 2° modified spectral luminous efficiency function for photopic vision. But if the surface is wet, water can fill in the crevices and smooth out the surface. Why Do “Left” And “Right” Mean Liberal And Conservative? Agitated by a multitud… A spectral summer painted itself upon the barren lilac bushes. You may recognize the spect part of the adjective spectral from words like "spectacle," "spectrum," and "spectacular." glare arising from specularly reflected light. “That” vs. “Which”: When Do You Use Each? As the electrons move closer to or farther from the nucleus of an atom (or of an ion), energy in the form of light (or other radiation) is emitted or absorbed.… Glare definition is - to shine with a harsh uncomfortably brilliant light. Glare Discomfort caused by excessive brightness of the light source, controlled by cutting off the light rays (as with louvred or recessed luminaires) so as to prevent the light source coming directly into the normal field of vision. spectral definition: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. His brother Niles, also a psychiatrist, is, for a time, married to Maris, a spectral caricature who’s never seen on the show. Note: UWLR also meets the LEED version 4 definition of percent uplight. Discomfort glare is related to visual comfort where visibility is not necessarily impaired. Eq.1) The function S ¯ x x (f) {\displaystyle {\bar {S}}_{xx}(f)} and the autocorrelation of x (t) {\displaystyle x(t)} form a Fourier transform pair, a result is known as Wiener–Khinchin theorem . The 500kg, five and a half metre diameter pendant is raised and lowered on a winching system from ETS. JULIUS O. SMITH III Center for Computer Research in Music and Acoustics (CCRMA) A lower test result means a lens that will allow more light to pass through it. But if the surface is wet, water can fill in the crevices and smooth out the surface. 4 Investigation of this concept continued through the 1950s, with the number of bands, their dividing wavelengths, and their relative weighting investigated by numerous researchers. The haze can be reduced by shading the lens with a lens hood, which minimizes the glare. Learn more. Spectral lines are produced by transitions of electrons within atoms or ions. 3. physics. adjective ghostly, unearthly, eerie, supernatural, weird, phantom, shadowy, uncanny, spooky (informal), insubstantial, incorporeal, wraithlike the spectral quality of the light. How is it defined and used? (Light-Scattering Spectroscopy, NCI Thesaurus/CDISC) A type of spectroscopy that measures power spectral density of surface morphology by exploiting the tendency of light to disperse into a range of directions as a result of physical interaction. Disabling glare, by definition, can result in reduced visual performance. You may have heard of ghosts referred to as "specters": that means that they're spectral. Ruth, unhappy as she felt, determined to discover the meaning of that spectral figure. Here, brightness is usually understood what is more precisely called radiance, i.e., we actually have a spectral radiance. Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. Antonym: nonspectral 1.3. Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Spectral Quality Definitions. 2 : of, relating to, or made by a spectrum especially : relating to or derived from the electromagnetic spectrum of visible light Surfaces can differ in the proportion of incident light they reflect (dark ones … of or relating to a specter; ghostly; phantom. distal stimulus. resembling or suggesting a spectrum or spectra. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. #1 In Spectral Reflectance (glare) This test uses a spectrophotometer to measure the consistency of the light reflected off of the surface of a lens. Surgery is the common, effective way to treat more vision-impairing cataracts . Filters can also be attached to reduce lens flare when shooting outside in bright conditions. What Does Amen Mean At The End Of A Prayer? Color Rendition (of objects): Effect of an illuminant on the color appearance of objects by conscious or subconscious comparison with their color appearance under a reference illuminant. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins of some laser beam, is essentially its brightness per unit optical bandwidth. Look it up now! Others give rise to delirum with spectral illusions or convulsions. These tools usually focus on pitch shifting, but there are many other marvellous things that the spectral domain lets us accomplish, and we are just getting started! Designing such tools is often very hard and in analogue devices it is generally impossible. Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Specular Reflection Error Finding Function. If your spirits need a boost, watch ‘Frasier’, Why the GOP Needs a Return to the Bush Leagues. Spectral discomfort glare sensitivity was determined using ten young observers, requesting the observers to select medium glare settings of monochromatic radiations based on the de Boer glare rating scale, both at near‐foveal and 10° extra‐foveal directions of the 2° diameter glare source. CIE (L*a*b*) uniform color space. Definition, Examples & History in Literature and Drama 7:24 ... disability glare factor, DGF. But Kasich and Walker face competitive re-elections; their national presence is spectral, their national potential speculative. His career being theological, the events in it cannot be other than spectral. This is at least the most common definition, leading to units of W/(sr cm 2 Hz). At the bloody work they would look upon.' The Dictionary.com Word Of The Year For 2020 Is …. The atlas is divided into pages for each spectral type, with each page containing a short description of the stellar type, characteristic spectral features, and a brief physical explantaion. The considerations discussed here are regarding discomfort glare. What do you have to bear in mind as a lighting designer? Its spectral resolution is fairly coarse, as the various wavelengths of the visible spectrum are not individually distinguished and the overall reflectance in the entire visible portion is recorded. Spectre definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Learn more. Glare: Lighting entering the eye directly from luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility. 1. of or like a spectre. Spectral Power Distribution (SPD): Describes the power emanating from a light source as a function of wavelength. Spectral effects access the hidden world of audio signals - the spectral domain. This spectral atlas contains a sample of the standard spectral type stars, peculiar stars, variable stars, and some special stars. The haze can be reduced by shading the lens with a lens hood, which minimizes the glare. discomfort glare. The spectral brightness, e.g. Lens hood (Photo Credit : ID1974/ Shutterstock) discomfort glare. https://medical-dictionary.thefreedictionary.com/specular+glare. distal stimulus. spectral. The information can be presented graphically or as a numerical table. Glare, also referred to as flare, is often defined as a Human Visual System (HSV) condition which causes a reduced capability to see details, due to an unsuitable distribution of luminance in the scene [1,2].Unfortunately, the term “glare” is used to refer both to the cause and to the effect of this phenomenon, as in the definition above which is a description of the effects, not of the cause. Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. 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