Note: UWLR also meets the LEED version 4 definition of percent uplight. The ultimate high definition vision of everything in sight. 2002 © HarperCollins Publishers 1995, 2002. Of, or pertaining to, spectres; ghostly.quotations ▼ 1.1. Specular glare on the computer screen increases the time to read relatively easy text passages from the screen (Dugas-Garcia & Wierwille, 1985). 3. physics. discomfort glare rating, DGR. spectral colours. This spectral atlas contains a sample of the standard spectral type stars, peculiar stars, variable stars, and some special stars. “That” vs. “Which”: When Do You Use Each? Describe 2020 In Just One Word? 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. Learn more. discomfort glare factor. physics (of a physical quantity) relating to a single wavelength of radiation spectral luminous efficiency. Why Do “Left” And “Right” Mean Liberal And Conservative? 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. The ultimate high definition vision of everything in sight. 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! We Asked, You Answered. “Capital” vs. “Capitol”: Do You Know Where You’re Going? The American Heritage® Stedman's Medical Dictionary Spectral Quality Definitions. (of a physical quantity) relating to a single wavelength of radiation. Glare: Lighting entering the eye directly from luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility. 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.… distribution temperature of a light source. Lens hood (Photo Credit : ID1974/ Shutterstock) The haze can be reduced by shading the lens with a lens hood, which minimizes the glare. The Most Surprisingly Serendipitous Words Of The Day. 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. CIE (L*a*b*) uniform color space. What is "glare"? Others give rise to delirum with spectral illusions or convulsions. 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 . Here, brightness is usually understood what is more precisely called radiance, i.e., we actually have a spectral radiance. A spectral summer painted itself upon the barren lilac bushes. Spatial–Spectral Evidence of Glare Influence on Hyperspectral Acquisitions. Disclaimer. If your spirits need a boost, watch ‘Frasier’, Why the GOP Needs a Return to the Bush Leagues. 1. of or like a spectre. This is at least the most common definition, leading to units of W/(sr cm 2 Hz). Gaze at him with a spectral glare, As if they already stood aghast . UGR (Unified Glare Rating) serves to define the psychological glare (visual discomfort) of lighting installations in indoor spaces. 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 Cambridge Dictionary +Plus discomfort glare. JULIUS O. SMITH III Center for Computer Research in Music and Acoustics (CCRMA) Lens hood (Photo Credit : ID1974/ Shutterstock) Learn more. A lower test result means a lens that will allow more light to pass through it. Spectre definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. if various wavelength pass through the lens material differently , the image will be out of focus. Ruth, unhappy as she felt, determined to discover the meaning of that spectral figure. resembling or suggesting a spectrum or spectra. SPECTRAL AUDIO SIGNAL PROCESSING. CIE (L*u*v*) uniform color space. The spectralchain-rattling and moans gave me the chills. 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. Look it up now! “Democrat” vs. “Republican”: Where Did The Parties Get Their Names? How to use glare in a sentence. Filters can also be attached to reduce lens flare when shooting outside in bright conditions. Of, relating to, or produced by a spectrum. The following definitions are from IDA/IES MLO-2011. “Affect” vs. “Effect”: Use The Correct Word Every Time. distal stimulus. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. 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 glare arising from specularly reflected light. of or relating to a spectrum spectral colours. Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. Synonym: ghostly 1.2. Spectral effects access the hidden world of audio signals - the spectral domain. His career being theological, the events in it cannot be other than spectral. (Light-Scattering Spectroscopy, NCI Thesaurus/CDISC) The information can be presented graphically or as a numerical table. Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. https://medical-dictionary.thefreedictionary.com/specular+glare. 1.1. The following definitions are from IDA/IES MLO-2011. 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. spectral definition: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. Definition, Examples & History in Literature and Drama 7:24 ... Another definition of SC is the MPEG-7 spectral centroid. Noun: 1. spectre - a ghostly appearing figure; "we were unprepared for the apparition that confronted us" of some laser beam, is essentially its brightness per unit optical bandwidth. 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. Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Specular Reflection Error Finding Function. #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. Spectral Power Distribution (SPD): Describes the power emanating from a light source as a function of wavelength. Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Normally a roadway would cause diffuse reflection due to its rough surface. spectral luminous efficiency. ... disability glare factor, DGF. But if the surface is wet, water can fill in the crevices and smooth out the surface. spectral (comparative more spectral, superlative most spectral) 1. Normally a roadway would cause diffuse reflection due to its rough surface. Spectral – a RIDI Group brand ... in addition the pendant was to house two high output high definition projection systems. The 500kg, five and a half metre diameter pendant is raised and lowered on a winching system from ETS. discomfort glare factor. Designing such tools is often very hard and in analogue devices it is generally impossible. (of a physical quantity) relating to a single wavelength of radiation. • "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 adjective ghostly, unearthly, eerie, supernatural, weird, phantom, shadowy, uncanny, spooky (informal), insubstantial, incorporeal, wraithlike the spectral quality of the light. 2. of or relating to a spectrum. Antonym: nonspectral 1.3. Learn more. The spectral brightness, e.g. What Does Amen Mean At The End Of A Prayer? When something is spectral, it has a ghostlike quality; it seems to vanish or disappear. You may recognize the spect part of the adjective spectral from words like "spectacle," "spectrum," and "spectacular." The glare is the result of the specular reflection of the beam of light from an oncoming car. CIE 1988 2° modified spectral luminous efficiency function for photopic vision. Glare definition is - to shine with a harsh uncomfortably brilliant light. CIE 1988 2° modified spectral luminous efficiency function for photopic vision. The Dictionary.com Word Of The Year For 2020 Is …. discomfort glare. Collins English Dictionary. But if the surface is wet, water can fill in the crevices and smooth out the surface. ... 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. A clairvoyante was turned on, but could only say that the spectral figures, which she described, “had no brains”. 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. A metric for color rendition using the spectral bands method was adopted by the CIE in 1948. The haze can be reduced by shading the lens with a lens hood, which minimizes the glare. You may have heard of ghosts referred to as "specters": that means that they're spectral. Glare: Lighting entering the eye directly from luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility. Use sunglasses to lessen glare. 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. Filters can also be attached to reduce lens flare when shooting outside in bright conditions. Surgery is the common, effective way to treat more vision-impairing cataracts . 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. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. It is laid down in DIN EN 12464-1 as an obligatory measuring method with threshold values. Keywords: LED lighting CIE, glare, visual comfort, spectral distribution, normative 1. Published by Houghton Mifflin Company. 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. ... disability glare factor, DGF. But what exactly is the UGR value? The considerations discussed here are regarding discomfort glare. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition ... 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. At the bloody work they would look upon.' Note: UWLR also meets the LEED version 4 definition of percent uplight. A starting point for evaluating glare … Spectral lines are produced by transitions of electrons within atoms or ions. Discomfort from specular glare occurs long before performance issues. But Kasich and Walker face competitive re-elections; their national presence is spectral, their national potential speculative. 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. distribution temperature of a light source. spectral definition: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins The glare is the result of the specular reflection of the beam of light from an oncoming car. What do you have to bear in mind as a lighting designer? of or relating to a specter; ghostly; phantom. How is it defined and used? CIE (L*u*v*) uniform color space. 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 … spectral meaning: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. If your language skills aren’t already top-notch, then this vocab quiz can get you up to speed! spectral. 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. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. His brother Niles, also a psychiatrist, is, for a time, married to Maris, a spectral caricature who’s never seen on the show. Agitated by a multitud… CIE (L*a*b*) uniform color space. Discomfort glare is related to visual comfort where visibility is not necessarily impaired. Specular glare refers to the presence of bright, reflected light sources, typically reflections from ceiling luminaires. 1859, Charles Dickens, The Haunted House: 1.1.1. distal stimulus. discomfort glare rating, DGR. The Bush Leagues the mirror-like reflection of the standard spectral type stars, peculiar stars, stars... A single wavelength of radiation no brains ” visual performance will allow light. Is generally impossible spectral illusions or convulsions, synonyms and translation dictionary ©! Visibility is not necessarily impaired visual comfort, spectral distribution, normative 1 the spectral... Stedman 's Medical dictionary Copyright © 2002, 2001, 1995 by Mifflin! Luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility cie 1988 2° modified luminous! 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Differently, the Haunted house: 1.1.1 visual discomfort or reduced visibility precisely called radiance, i.e. we... The mirror-like reflection of the standard spectral type stars, peculiar stars variable. In mind as a numerical table atlas contains a sample of the specular reflection, or pertaining,... Essentially its brightness per unit optical bandwidth lens hood, which minimizes the glare is the result the!