Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. The 500kg, five and a half metre diameter pendant is raised and lowered on a winching system from ETS. CIE (L*u*v*) uniform color space. Surgery is the common, effective way to treat more vision-impairing cataracts . spectral luminous efficiency. “Affect” vs. “Effect”: Use The Correct Word Every Time. discomfort glare rating, DGR. Antonym: nonspectral 1.3. Learn more. “Democrat” vs. “Republican”: Where Did The Parties Get Their Names? His career being theological, the events in it cannot be other than spectral. discomfort glare factor. The Most Surprisingly Serendipitous Words Of The Day. 2002 © HarperCollins Publishers 1995, 2002. Cambridge Dictionary +Plus This spectral atlas contains a sample of the standard spectral type stars, peculiar stars, variable stars, and some special stars. 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 Others give rise to delirum with spectral illusions or convulsions. 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. The haze can be reduced by shading the lens with a lens hood, which minimizes the glare. (of a physical quantity) relating to a single wavelength of radiation. Filters can also be attached to reduce lens flare when shooting outside in bright conditions. 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 glare refers to the presence of bright, reflected light sources, typically reflections from ceiling luminaires. Disclaimer. • "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 distribution temperature of a light source. What is "glare"? spectral definition: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. If your spirits need a boost, watch ‘Frasier’, Why the GOP Needs a Return to the Bush Leagues. Spatial–Spectral Evidence of Glare Influence on Hyperspectral Acquisitions. Glare: Lighting entering the eye directly from luminaires or indirectly from reflective surfaces that causes visual discomfort or reduced visibility. SPECTRAL AUDIO SIGNAL PROCESSING. Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Specular Reflection Error Finding Function. Spectral Quality Definitions. https://medical-dictionary.thefreedictionary.com/specular+glare. spectral definition: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. JULIUS O. SMITH III Center for Computer Research in Music and Acoustics (CCRMA) Normally a roadway would cause diffuse reflection due to its rough surface. His brother Niles, also a psychiatrist, is, for a time, married to Maris, a spectral caricature who’s never seen on the show. distal stimulus. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Here, brightness is usually understood what is more precisely called radiance, i.e., we actually have a spectral radiance. ... 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 lower test result means a lens that will allow more light to pass through it. of or relating to a specter; ghostly; phantom. At the bloody work they would look upon.' Discomfort from specular glare occurs long before performance issues. 2. of or relating to a spectrum. discomfort glare rating, DGR. The information can be presented graphically or as a numerical table. ... disability glare factor, DGF. Keywords: LED lighting CIE, glare, visual comfort, spectral distribution, normative 1. Agitated by a multitud… 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. Learn more. You may recognize the spect part of the adjective spectral from words like "spectacle," "spectrum," and "spectacular." Spectral lines are produced by transitions of electrons within atoms or ions. Discomfort glare is related to visual comfort where visibility is not necessarily impaired. 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! 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. What do you have to bear in mind as a lighting designer? This is at least the most common definition, leading to units of W/(sr cm 2 Hz). UGR (Unified Glare Rating) serves to define the psychological glare (visual discomfort) of lighting installations in indoor spaces. Learn more. spectral colours. distal stimulus. glare arising from specularly reflected light. of some laser beam, is essentially its brightness per unit optical bandwidth. Spectral Power Distribution (SPD): Describes the power emanating from a light source as a function of wavelength. The glare is the result of the specular reflection of the beam of light from an oncoming car. discomfort glare. 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. spectral meaning: 1. coming from or seeming to be the spirit of a dead person: 2. of the set of colours into which a…. But if the surface is wet, water can fill in the crevices and smooth out the surface. Glare definition is - to shine with a harsh uncomfortably brilliant light. The glare is the result of the specular reflection of the beam of light from an oncoming car. Spectre definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. CIE (L*a*b*) uniform color space. distribution temperature of a light source. What Does Amen Mean At The End Of A Prayer? “Capital” vs. “Capitol”: Do You Know Where You’re Going? Spectral effects access the hidden world of audio signals - the spectral domain. Noun: 1. spectre - a ghostly appearing figure; "we were unprepared for the apparition that confronted us" Published by Houghton Mifflin Company. The following definitions are from IDA/IES MLO-2011. ... 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 Dictionary.com Word Of The Year For 2020 Is …. Definition, Examples & History in Literature and Drama 7:24 All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Gaze at him with a spectral glare, As if they already stood aghast . But what exactly is the UGR value? The considerations discussed here are regarding discomfort glare. Specular glare on the computer screen increases the time to read relatively easy text passages from the screen (Dugas-Garcia & Wierwille, 1985). physics (of a physical quantity) relating to a single wavelength of radiation spectral luminous efficiency. Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. The spectralchain-rattling and moans gave me the chills. Lens hood (Photo Credit : ID1974/ Shutterstock) Describe 2020 In Just One Word? spectral (comparative more spectral, superlative most spectral) 1. 1.1. 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 following definitions are from IDA/IES MLO-2011. adjective ghostly, unearthly, eerie, supernatural, weird, phantom, shadowy, uncanny, spooky (informal), insubstantial, incorporeal, wraithlike the spectral quality of the light. resembling or suggesting a spectrum or spectra. (Light-Scattering Spectroscopy, NCI Thesaurus/CDISC) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition ... disability glare factor, DGF. ... Another definition of SC is the MPEG-7 spectral centroid. Note: UWLR also meets the LEED version 4 definition of percent uplight. Why Do “Left” And “Right” Mean Liberal And Conservative? Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. Synonym: ghostly 1.2. Of, relating to, or produced by a spectrum. 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. Ruth, unhappy as she felt, determined to discover the meaning of that spectral figure. CIE (L*a*b*) uniform color space. It is laid down in DIN EN 12464-1 as an obligatory measuring method with threshold values. 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. A metric for color rendition using the spectral bands method was adopted by the CIE in 1948. Designing such tools is often very hard and in analogue devices it is generally impossible. How to use glare in a sentence. The ultimate high definition vision of everything in sight. CIE 1988 2° modified spectral luminous efficiency function for photopic vision. 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