LEADER 00738cam a2200217 i 4500 001 991004306038007536 005 20240205142812.0 008 240205s2002----it e 001 e ita 020 $a8871861094 040 $aBibl. Dip.le Aggr. Scienze Umane e Sociali - Sez. Studi Storici 082 04$a335.4092 082 04$a155.2 100 1 $aRagazzini, Dario$050049 245 10$aLeonardo nella società di massa :$bteoria della personalità in Gramsci /$cDario Ragazzini 260 $aBergamo :$bMoretti Honegger,$cc2002 300 $a190 p. ;$c21 cm 490 1 $aScienze dell'uomo$v1 600 14$aGramsci, Antonio$xPersonalità$xTeorie 912 $a991004306038007536 996 $aLeonardo nella società di massa$91112804 997 $aUNISALENTO LEADER 05226nam 2200637 450 001 9910819595003321 005 20200520144314.0 010 $a3-527-67016-5 010 $a3-527-67014-9 010 $a3-527-67017-3 035 $a(CKB)2670000000578856 035 $a(EBL)1874137 035 $a(SSID)ssj0001410646 035 $a(PQKBManifestationID)11778938 035 $a(PQKBTitleCode)TC0001410646 035 $a(PQKBWorkID)11378370 035 $a(PQKB)11642350 035 $a(MiAaPQ)EBC1874137 035 $a(Au-PeEL)EBL1874137 035 $a(CaPaEBR)ebr10992241 035 $a(CaONFJC)MIL666115 035 $a(OCoLC)897641411 035 $a(PPN)233470026 035 $a(EXLCZ)992670000000578856 100 $a20141210h20152015 uy| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt 182 $cc 183 $acr 200 00$aLED lighting $etechnology and perception /$fedited by Tran Quoc Khanh [and three others] 210 1$aWeinheim, Germany :$cWiley-VCH Verlag GmbH & Company KGaA,$d[2015] 210 4$d©2015 215 $a1 online resource (517 p.) 300 $aDescription based upon print version of record. 311 $a3-527-41212-3 311 $a1-322-34833-2 320 $aIncludes bibliographical references and index. 327 $aLED Lighting; Foreword; Contents; Table of the Coauthors; Preface; Chapter 1 Introduction; Reference; Chapter 2 The Human Visual System and Its Modeling for Lighting Engineering; 2.1 Visual System Basics; 2.1.1 The Way of Visual Information; 2.1.2 Perception; 2.1.3 Structure of the Human Eye; 2.1.4 The Pupil; 2.1.5 Accommodation; 2.1.6 The Retina; 2.1.7 Cone Mosaic and Spectral Sensitivities; 2.1.8 Receptive Fields and Spatial Vision; 2.2 Radiometry and Photometry; 2.2.1 Radiant Power (Radiant Flux) and Luminous Flux; 2.2.2 Irradiance and Illuminance 327 $a2.2.3 Radiant Intensity and Luminous Intensity 2.2.4 Radiance and Luminance; 2.2.5 Degrees of Efficiency for Electric Light Sources; 2.3 Colorimetry and Color Science; 2.3.1 Color Matching Functions and Tristimulus Values; 2.3.2 Color Appearance, Chromatic Adaptation, Color Spaces, and Color Appearance Models; 2.3.2.1 Perceived Attributes of Color Perception; 2.3.2.2 Chromatic Adaptation; 2.3.2.3 CIELAB Color Space; 2.3.2.4 The CIECAM02 Color Appearance Model; 2.3.3 Modeling of Color Difference Perception; 2.3.3.1 MacAdam Ellipses; 2.3.3.2 u', v' Chromaticity Diagram 327 $a2.3.3.3 CIELAB Color Difference 2.3.3.4 CAM02-UCS Uniform Color Space and Color Difference; 2.3.4 Blackbody Radiators and Phases of Daylight in the x, y Chromaticity Diagram; 2.4 LED Specific Spectral and Colorimetric Quantities; 2.4.1 Peak Wavelength (?P); 2.4.2 Spectral Bandwidth at Half Intensity Level (??0.5); 2.4.3 Centroid Wavelength (?C); 2.4.4 Colorimetric Quantities Derived from the Spectral Radiance Distribution of the LED Light Source; 2.4.4.1 Dominant Wavelength (?D); 2.4.4.2 Colorimetric Purity (pC); 2.5 Circadian Effect of Electromagnetic Radiation 327 $a2.5.1 The Human Circadian Clock References; Chapter 3 LED Components - Principles of Radiation Generation and Packaging; 3.1 Introduction to LED Technology; 3.2 Basic Knowledge on Color Semiconductor LEDs; 3.2.1 Injection Luminescence; 3.2.2 Homo-Junction, Hetero-Junction, and Quantum Well; 3.2.2.1 Homo-Junction; 3.2.2.2 Hetero-Junction; 3.2.2.3 Quantum Well; 3.2.3 Recombination; 3.2.3.1 Direct and Indirect Recombination; 3.2.3.2 Radiative and Nonradiative Recombinations and Their Simple Theoretical Quantification; 3.2.4 Efficiency; 3.2.4.1 Internal Quantum Efficiency (?i) 327 $a3.2.4.2 Injection Efficiency (?inj) 3.2.4.3 Light Extraction Efficiency (?extraction); 3.2.4.4 External Quantum Efficiency (?ext); 3.2.4.5 Radiant Efficiency (?e, See Section 2.2.5, Eq. (2.13)); 3.2.4.6 Luminous Efficacy (?v); 3.2.5 Semiconductor Material Systems - Efficiency, Possibilities, and Limits; 3.2.5.1 Possible Semiconductor Systems; 3.2.5.2 Semiconductor Systems for Amber-Red Semiconductor LEDs; 3.2.5.3 Semiconductor Systems for UV-Blue-Green Semiconductor LEDs; 3.2.5.4 The Green Efficiency Gap of Color Semiconductor LEDs; 3.3 Color Semiconductor LEDs 327 $a3.3.1 Concepts of Matter Waves of de Broglie 330 $aPromoting the design, application and evaluation of visually and electrically effective LED light sources and luminaires for general indoor lighting as well as outdoor and vehicle lighting, this book combines the knowledge of LED lighting technology with human perceptual aspects for lighting scientists and engineers. After an introduction to the human visual system and current radiometry, photometry and color science, the basics of LED chip and phosphor technology are described followed by specific issues of LED radiometry and the optical, thermal and electric modeling of LEDs. 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