LEADER 09829nam 2200661 450 001 9910141360703321 005 20221206095649.0 010 $a1-118-46249-1 010 $a1-118-46245-9 024 7 $a10.1002/9781118462539 035 $a(CKB)2670000000299399 035 $a(EBL)1092855 035 $a(SSID)ssj0000784940 035 $a(PQKBManifestationID)11435824 035 $a(PQKBTitleCode)TC0000784940 035 $a(PQKBWorkID)10783691 035 $a(PQKB)11282697 035 $a(MiAaPQ)EBC1092855 035 $a(DLC) 2012029336 035 $a(CaBNVSL)mat06497232 035 $a(IDAMS)0b00006481d2fb09 035 $a(IEEE)6497232 035 $a(OCoLC)801052001 035 $a(EXLCZ)992670000000299399 100 $a20151222d2013 uy 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aIllumination engineering $edesign with nonimaging optics /$fJohn Koshel 210 1$aHoboken, New Jersey :$cWiley-IEEE Press,$d2013. 210 2$a[Piscataqay, New Jersey] :$cIEEE Xplore,$d[2013] 215 $a1 online resource (326 p.) 300 $aDescription based upon print version of record. 311 $a1-118-46253-X 311 $a0-470-91140-9 320 $aIncludes bibliographical references and index. 327 $aPREFACE xiii -- CONTRIBUTORS xvii -- GLOSSARY xix -- CHAPTER 1 INTRODUCTION AND TERMINOLOGY 1 -- 1.1 What Is Illumination? 1 -- 1.2 A Brief History of Illumination Optics 2 -- 1.3 Units 4 -- 1.3.1 Radiometric Quantities 4 -- 1.3.2 Photometric Quantities 6 -- 1.4 Intensity 9 -- 1.5 Illuminance and Irradiance 10 -- 1.6 Luminance and Radiance 11 -- 1.6.1 Lambertian 13 -- 1.6.2 Isotropic 14 -- 1.7 Important Factors in Illumination Design 15 -- 1.7.1 Transfer Effi ciency 15 -- 1.7.2 Uniformity of Illumination Distribution 16 -- 1.8 Standard Optics Used in Illumination Engineering 17 -- 1.8.1 Refractive Optics 18 -- 1.8.2 Refl ective Optics 20 -- 1.8.3 TIR Optics 22 -- 1.8.4 Scattering Optics 24 -- 1.8.5 Hybrid Optics 24 -- 1.9 The Process of Illumination System Design 25 -- 1.10 Is Illumination Engineering Hard? 28 -- 1.11 Format for Succeeding Chapters 29 -- References 30 -- CHAPTER 2 ƒETENDUE 31 -- 2.1 ƒEtendue 32 -- 2.2 Conservation of ƒEtendue 33 -- 2.2.1 Proof of Conservation of Radiance and ƒEtendue 34 -- 2.2.2 Proof of Conservation of Generalized ƒEtendue 36 -- 2.2.3 Conservation of ƒEtendue from the Laws of Thermodynamics 40 -- 2.3 Other Expressions for ƒEtendue 41 -- 2.3.1 Radiance, Luminance, and Brightness 41 -- 2.3.2 Throughput 42 -- 2.3.3 Extent 43 -- 2.3.4 Lagrange Invariant 43 -- 2.3.5 Abbe Sine Condition 43 -- 2.3.6 Confi guration or Shape Factor 44 -- 2.4 Design Examples Using ƒEtendue 45 -- 2.4.1 Lambertian, Spatially Uniform Disk Emitter 45 -- 2.4.2 Isotropic, Spatially Uniform Disk Emitter 48 -- 2.4.3 Isotropic, Spatially Nonuniform Disk Emitter 50 -- 2.4.4 Tubular Emitter 52 -- 2.5 Concentration Ratio 59 -- 2.6 Rotational Skew Invariant 61 -- 2.6.1 Proof of Skew Invariance 61 -- 2.6.2 Refi ned Tubular Emitter Example 63 -- 2.7 ƒEtendue Discussion 67 -- References 68 -- CHAPTER 3 SQUEEZING THE ƒETENDUE 71 -- 3.1 Introduction 71 -- 3.2 ƒEtendue Squeezers versus ƒEtendue Rotators 71 -- 3.2.1 ƒEtendue Rotating Mappings 74 -- 3.2.2 ƒEtendue Squeezing Mappings 77. 327 $a3.3 Introductory Example of ƒEtendue Squeezer 79 -- 3.3.1 Increasing the Number of Lenticular Elements 80 -- 3.4 Canonical ƒEtendue-Squeezing with Afocal Lenslet Arrays 82 -- 3.4.1 Squeezing a Collimated Beam 82 -- 3.4.2 Other Afocal Designs 83 -- 3.4.3 ƒEtendue-Squeezing Lenslet Arrays with Other Squeeze-Factors 85 -- 3.5 Application to a Two Freeform Mirror Condenser 88 -- 3.6 ƒEtendue Squeezing in Optical Manifolds 95 -- 3.7 Conclusions 95 -- Appendix 3.A Galilean Afocal System 96 -- Appendix 3.B Keplerian Afocal System 98 -- References 99 -- CHAPTER 4 SMS 3D DESIGN METHOD 101 -- 4.1 Introduction 101 -- 4.2 State of the Art of Freeform Optical Design Methods 101 -- 4.3. SMS 3D Statement of the Optical Problem 103 -- 4.4 SMS Chains 104 -- 4.4.1 SMS Chain Generation 105 -- 4.4.2 Conditions 106 -- 4.5 SMS Surfaces 106 -- 4.5.1 SMS Ribs 107 -- 4.5.2 SMS Skinning 108 -- 4.5.3 Choosing the Seed Rib 109 -- 4.6 Design Examples 109 -- 4.6.1 SMS Design with a Prescribed Seed Rib 110 -- 4.6.2 SMS Design with an SMS Spine as Seed Rib 111 -- 4.6.3 Design of a Lens (RR) with Thin Edge 115 -- 4.6.4 Design of an XX Condenser for a Cylindrical Source 117 -- 4.6.5 Freeform XR for Photovoltaics Applications 129 -- 4.6.5.1 The XR Design Procedure 131 -- 4.6.5.2 Results of Ray Tracing Analysis 135 -- 4.7 Conclusions 140 -- References 144 -- CHAPTER 5 SOLAR CONCENTRATORS 147 -- 5.1 Concentrated Solar Radiation 147 -- 5.2 Acceptance Angle 148 -- 5.3 Imaging and Nonimaging Concentrators 156 -- 5.4 Limit Case of Infi nitesimal ƒEtendue: Aplanatic Optics 164 -- 5.5 3D Min?ano-Benitez Design Method Applied to High Solar Concentration 171 -- 5.6 KŠohler Integration in One Direction 180 -- 5.7 KŠohler Integration in Two Directions 195 -- 5.8 Appendix 5.A Acceptance Angle of Square Concentrators 201 -- 5.9 Appendix 5.B Polychromatic Effi ciency 204 -- Acknowledgments 207 -- References 207 -- CHAPTER 6 LIGHTPIPE DESIGN 209 -- 6.1 Background and Terminology 209 -- 6.1.1 What is a Lightpipe 209. 327 $a6.1.2 Lightpipe History 210 -- 6.2 Lightpipe System Elements 211 -- 6.2.1 Source/Coupling 211 -- 6.2.2 Distribution/Transport 211 -- 6.2.3 Delivery/Output 212 -- 6.3 Lightpipe Ray Tracing 212 -- 6.3.1 TIR 212 -- 6.3.2 Ray Propagation 212 -- 6.4 Charting 213 -- 6.5 Bends 214 -- 6.5.1 Bent Lightpipe: Circular Bend 214 -- 6.5.1.1 Setup and Background 214 -- 6.5.2 Bend Index for No Leakage 215 -- 6.5.3 Refl ection at the Output Face 216 -- 6.5.4 Refl ected Flux for a Specifi c Bend 217 -- 6.5.5 Loss Because of an Increase in NA 218 -- 6.5.6 Other Bends 219 -- 6.6 Mixing Rods 220 -- 6.6.1 Overview 220 -- 6.6.2 Why Some Shapes Provide Uniformity 221 -- 6.6.3 Design Factors Infl uencing Uniformity 223 -- 6.6.3.1 Length 223 -- 6.6.3.2 Solid versus Hollow 223 -- 6.6.3.3 Periodic Distributions 224 -- 6.6.3.4 Coherence 224 -- 6.6.3.5 Angular Uniformity 224 -- 6.6.3.6 Circular Mixer with Ripples 225 -- 6.6.4 RGB LEDs 226 -- 6.6.4.1 RGB LEDs with Square Mixers 226 -- 6.6.4.2 RGB LEDs with Circular Mixers 227 -- 6.6.5 Tapered Mixers 228 -- 6.6.5.1 Length 229 -- 6.6.5.2 Straight Taper Plus Lens 229 -- 6.6.5.3 Angular Uniformity 231 -- 6.6.5.4 Straight + Diffuser + Taper 232 -- 6.7 Backlights 233 -- 6.7.1 Introduction 233 -- 6.7.2 Backlight Overview 234 -- 6.7.3 Optimization 235 -- 6.7.4 Parameterization 235 -- 6.7.4.1 Vary Number 236 -- 6.7.4.2 Vary Size 236 -- 6.7.5 Peak Density 237 -- 6.7.6 Merit Function 237 -- 6.7.7 Algorithm 238 -- 6.7.8 Examples 239 -- 6.7.8.1 Peaked Target Distribution 239 -- 6.7.8.2 Border Extractors 240 -- 6.7.8.3 Input Surface Texturing 241 -- 6.7.8.4 Variable Depth Extractors 242 -- 6.7.8.5 Inverted 3D Texture Structure 242 -- 6.7.8.6 Key Pads 244 -- 6.8 Nonuniform Lightpipe Shapes 245 -- 6.9 Rod Luminaire 246 -- Acknowledgments 247 -- References 247 -- CHAPTER 7 SAMPLING, OPTIMIZATION, AND TOLERANCING 251 -- 7.1 Introduction 251 -- 7.2 Design Tricks 253 -- 7.2.1 Monte Carlo Processes 254 -- 7.2.1.1 Monte Carlo Sources 254 -- 7.2.1.2 Monte Carlo Ray Tracing 255. 327 $a7.2.2 Reverse Ray Tracing 257 -- 7.2.3 Importance Sampling 260 -- 7.2.4 Far-Field Irradiance 263 -- 7.3 Ray Sampling Theory 266 -- 7.3.1 Transfer Effi ciency Determination 266 -- 7.3.2 Distribution Determination: Rose Model 268 -- 7.4 Optimization 272 -- 7.4.1 Geometrical Complexity 273 -- 7.4.1.1 CAD Geometry 274 -- 7.4.1.2 Variables and Parameterization 275 -- 7.4.1.3 Object Overlap, Interference, Linking, and Mapping 277 -- 7.4.2 Merit Function Designation and Calculation 280 -- 7.4.3 Optimization Methods 281 -- 7.4.4 Fractional Optimization with Example: LED Collimator 282 -- 7.5 Tolerancing 289 -- 7.5.1 Types of Errors 290 -- 7.5.2 System Error Sensitivity Analysis: LED Die Position Offset 290 -- 7.5.3 Process Error Case Study: Injection Molding 291 -- References 297 -- INDEX 299. 330 8 $a"This book brings together experts in the field who present material on a number of important and growing topics including lighting, displays, solar concentrators. The first chapter provides an overview of the field of nonimagin and illumination optics. Included in this chapter are terminology, units, definitions, and descriptions of the optical components used in illumination systems. The next two chapters provide material within the theoretical domain, including etendue, etendue squeezing, and the skew invariant. The remaining chapters focus on growing applications. This entire field of nonimaging optics is an evolving field, and the editor plans to update the technological progress every two to three years. The editor, John Koshel, is one of the most prominent leading experts in this field, and he is the right expert to perform the task"--$cRa?esuma?e de l'a?editeur 330 8 $a"Provides a wide number of topics so that practicing engineers and scientist can expand their knowledge into other subfields within nonimaging and illumination optics"--$cRa?esuma?e de l'a?editeur 606 $aOptical engineering 606 $aLighting 615 0$aOptical engineering. 615 0$aLighting. 676 $a621.36 686 $aTEC030000$2bisacsh 700 $aKoshel$b R. John, $0845915 801 0$bCaBNVSL 801 1$bCaBNVSL 801 2$bCaBNVSL 906 $aBOOK 912 $a9910141360703321 996 $aIllumination engineering$91888793 997 $aUNINA LEADER 03622nam 2200805Ia 450 001 9910780149603321 005 20230422042727.0 010 $a1-84541-396-2 010 $a1-280-62805-7 010 $a9786610628056 010 $a1-873150-74-1 024 7 $a10.21832/9781873150740 035 $a(CKB)111056487011432 035 $a(EBL)1024791 035 $a(SSID)ssj0000260465 035 $a(PQKBManifestationID)11215942 035 $a(PQKBTitleCode)TC0000260465 035 $a(PQKBWorkID)10224136 035 $a(PQKB)11165894 035 $a(MiAaPQ)EBC1024791 035 $a(DE-B1597)491376 035 $a(DE-B1597)9781873150740 035 $a(Au-PeEL)EBL1024791 035 $a(CaPaEBR)ebr10603457 035 $a(CaONFJC)MIL62805 035 $a(OCoLC)824554963 035 $a(OCoLC)51908927 035 $a(EXLCZ)99111056487011432 100 $a20000418d2000 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aTourism in peripheral areas$b[electronic resource] $ecase studies /$fedited by Frances Brown and Derek Hall 210 $aClevedon, UK ;$aTonawanda, NY $cChannel View Publications$dc2000 215 $a1 online resource (160 p.) 225 0 $aAspects of Tourism ;$v1 225 0$aAspects of tourism ;$v2 300 $aDescription based upon print version of record. 311 $a1-873150-23-7 320 $aIncludes bibliographical references and index. 327 $aContents; Preface; Introduction: The Paradox of Peripherality; Chapter 1 Perceptions from the Periphery: The Experience of Wales; Chapter 2 PACE: Guiding Rural Tourism Development in a Fragile Area; Chapter 3 Peripheries, Artificial Peripheries and Centres; Chapter 4 Tourist Perceptions of the Ultimate European Periphery; Chapter 5 Farm Accommodation and Agricultural Heritage in Orkney; Chapter 6 The Fall and Rise of Peripherality: Tourism and Restructuring on Bute; Chapter 7 The Evolution of Tourism in the Ta?rna Mountains: Arena and Actors in a Periphery 327 $aChapter 8 Tourism's Role in New Rural Policy for Peripheral Areas: The Case of ArjeplogIndex 330 $aThere has been little research on tourism in those European countries or regions which lie outside the continent's main centres of production and population, even though tourism may be one of the few economic options open to them. This volume aims to fill a gap by presenting a range of case studies - including northern Sweden, the Orkneys, the tip of Norway and northern Cyprus - on tourism in the peripheral areas of Europe. Taking as a leitmotiv the paradoxes inherent in developing places whose very attraction may lie in their lack of development, the case studies investigate and illustrate bo 410 0$aAspects of Tourism 606 $aRural development$zEurope$vCase studies 606 $aTourism$zEurope$vCase studies 610 $aperipheral areas. 610 $aperipherality. 610 $arural tourism development. 610 $atourism development. 610 $atourism policy. 610 $atourism research. 610 $atourist perceptions. 610 $avisitor perceptions. 615 0$aRural development 615 0$aTourism 676 $a338.4/791404 676 $a338.47914 676 $a338.4791404 701 $aBrown$b Frances$f1956-$0996381 701 $aHall$b Derek R$0276105 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910780149603321 996 $aTourism in peripheral areas$93781680 997 $aUNINA