Freeform Optics for LED Packages and Applications (inbunden)
Format
Inbunden (Hardback)
Språk
Engelska
Antal sidor
376
Utgivningsdatum
2017-07-05
Upplaga
1
Förlag
John Wiley & Sons Inc
Dimensioner
250 x 170 x 20 mm
Vikt
1 g
Antal komponenter
1
ISBN
9781118749715
Freeform Optics for LED Packages and Applications (inbunden)

Freeform Optics for LED Packages and Applications

Inbunden Engelska, 2017-07-05
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A practical introduction to state-of-the-art freeform optics design for LED packages and applications By affording designers the freedom to create complex, aspherical optical surfaces with minimal or no aberrations, freeform design transcends the constraints imposed by hundreds of years of optics design and fabrication. Combining unprecedented design freedom with precise light irradiation control, freeform optics design is also revolutionizing the design and manufacture of high quality LED lighting. The first and only book of its kind, Freeform Optics for LED Packages and Applications helps put readers at the forefront of the freeform optics revolution. Designed to function as both an authoritative review of the current state of the industry and a practical introduction to advanced optical design for LED lighting, this book makes learning and mastering freeform optics skills simpler and easier than ever before with: * Real-world examples and case studies systematically describing an array of algorithms and designs from new freeform algorithms to design methods to advanced optical designs * Coding for all freeform optics algorithms covered makes it easier and more convenient to start developing points of freeform optics and construct lenses or reflectors, right away * Case studies of a range of products, including designs for a freeform optics LED bulb, an LED spotlight, LED street lights, an LED BLU, and many more Freeform Optics for LED Packages and Applications is must-reading for optical design engineers and LED researchers, as well as advanced-level students with an interest in LED lighting. It is also an indispensable working resource design practitioners within the LED lighting industry.
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Övrig information

Kai Wang, Ph.D., Southern University of Science and Technology, Guangdong, China Sheng Liu, Ph.D., Wuhan University, Hubei, China Xiaobing Luo, Huazhong University of Science and Technology, Hubei, China Dan Wu, Ph.D., Nanyang Technological University, Singapore

Innehållsförteckning

Preface xi 1 Introduction 1 1.1 Overview of LED Lighting 1 1.2 Development Trends of LED Packaging and Applications 5 1.3 Three Key Issues of Optical Design of LED Lighting 7 1.3.1 System Luminous Efficiency 7 1.3.2 Controllable Light Pattern 7 1.3.3 Spatial Color Uniformity 8 1.4 Introduction of Freeform Optics 10 References 12 2 Review of Main Algorithms of Freeform Optics for LED Lighting 15 2.1 Introduction 15 2.2 Tailored Design Method 16 2.3 SMS Design Method 17 2.4 Light Energy Mapping Design Method 18 2.5 Generalized Functional Design Method 19 2.6 Design Method for Uniform Illumination with Multiple Sources 22 References 22 3 Basic Algorithms of Freeform Optics for LED Lighting 25 3.1 Introduction 25 3.2 Circularly Symmetrical Freeform Lens Point Source 25 3.2.1 Freeform Lens for Large Emitting Angles 26 3.2.1.1 Step 1. Establish a Light Energy Mapping Relationship between the Light Source and Target 27 3.2.1.2 Step 2. Construct a Freeform Lens 31 3.2.1.3 Step 3. Validation and Optimization 33 3.2.2 TIR-Freeform Lens for Small Emitting Angle 33 3.2.3 Circularly Symmetrical Double Surfaces Freeform Lens 39 3.3 Circularly Symmetrical Freeform Lens Extended Source 42 3.3.1.1 Step 1. Construction of a Point Source Freeform Lens 45 3.3.1.2 Step 2. Calculation of Feedback Optimization Ratios 45 3.3.1.3 Step 3. Grids Redivision of the Target Plane and Light Source 46 3.3.1.4 Step 4. Rebuild the Energy Relationship between the Light Source and Target Plane 46 3.3.1.5 Step 5. Construction of a Freeform Lens for an Extended Source 47 3.3.1.6 Step 6. Ray-Tracing Simulation and Feedback Reversing Optimization 47 3.4 Noncircularly Symmetrical Freeform Lens Point Source 48 3.4.1 Discontinuous Freeform Lens Algorithm 49 3.4.1.1 Step 1. Establishment of a Light Energy Mapping Relationship 49 3.4.1.2 Step 2. Construction of the Lens 52 3.4.1.3 Step 3. Validation of Lens Design 55 3.4.2 Continuous Freeform Lens Algorithm 55 3.4.2.1 Radiate Grid Light Energy Mapping 57 3.4.2.2 Rectangular Grid Light Energy Mapping 58 3.5 Noncircularly Symmetrical Freeform Lens Extended Source 60 3.5.1.1 Step 1. Establishment of the Light Energy Mapping Relationship 61 3.5.1.2 Step 2. Construction of a Freeform Lens 61 3.5.1.3 Step 3. Validation of Lens Design 62 3.6 Reversing the Design Method for Uniform Illumination of LED Arrays 63 3.6.1 Reversing the Design Method of LIDC for Uniform Illumination 64 3.6.2 Algorithm of a Freeform Lens for the Required LIDC 66 References 68 4 Application-Specific LED Package Integrated with a Freeform Lens 71 4.1 Application-Specific LED Package (ASLP) Design Concept 71 4.2 ASLP Single Module 72 4.2.1 Design Method of a Compact Freeform Lens 72 4.2.2 Design of the ASLP Module 73 4.2.2.1 Optical Modeling 73 4.2.2.2 Design of a Compact Freeform Lens 73 4.2.2.3 ASLP Module 74 4.2.3 Numerical Analyses and Tolerance Analyses 76 4.2.3.1 Numerical Simulation and Analyses 76 4.2.3.2 Tolerance Analyses 77 4.2.3.3 Experiments 81 4.3 ASLP Array Module 85 4.4 ASLP System Integrated with Multiple Functions 87 4.4.1 Optical Design 89 4.4.1.1 Problem Statement 89 4.4.1.2 Optical Modeling 89 4.4.1.3 Design of a Freeform Lens 90 4.4.1.4 Simulation of Lighting Performance 91 4.4.2 Thermal Management 91 4.4.3 ASLP Module 94 References 96 5 Freeform Optics for LED Indoor Lighting 99 5.1 Introduction 99 5.2 A Large-Emitting-Angle Freeform Lens with a Small LED Source 99 5.2.1 A Freeform Lens for a Philip Lumileds K2 LED 100 5.2.2 Freeform Lens for a CREE XLamp XR-E LED 103 5.3 A Large-Emitting-Angle Freeform Lens with an Extended Source 108 5.3.1 Target Plane Grids Optimization 108 5.3.2 Light Source Grids Optimization 108 5.3.3 Target Plane and Light Source Grids Coupling Optimization 1