TAILIEUCHUNG - LED Lighting

First off, it’s all about the lumens. Lumens are the visible light given off by a source, and they are the ultimate goal. Wattage has often been confused with lumens, thanks to how incandescent bulbs are rated (everyone knows that a 60W bulb is not as bright as a 100W one), but more efficient lighting technologies have greatly changed the relationship between wattage (essentially power usage) and lumens (light output). For example, an incandescent might operate at about 12-15 lumens-per-watt (lm/W), while an LED bulb will be in the range of 40-50, a much greater luminous efficacy. | I _ . I Project Book 1 ILLUMINATE YOUR WORLD WITH SOLID STATE TECHNOLOGY _ _ 1 I I I A Primer to Lighting the Future I I Sal Cangeloso I. I I I I I I I I I I I I I I I I I I I I I o REILLY I I PRESS I Project Book LED Lighting We re on the brink of a lighting revolution with light-emitting diodes the tiny LEDs you ve seen in electronic devices for years. With this practical guide you ll go behind the scenes to see how and why manufacturers are now designing LED devices to light everything from homes and offices to streets and warehouses. Author Sal Cangeloso shows you the working parts of a simple LED bulb and explains the challenges electronics companies face as they push LED lighting into the mainstream. You ll learn how you can use LEDs now and why solid state lighting will bring dramatic changes in the near future. Explore the drivers phosphors and integrated circuits in a . . I. __ . . I I typical LED bulb Understand the challenges in producing LED bulbs with acceptable brightness color temperature and power consumption I I I I I Learn about non-bulb LED applications including lamps street lights and signage Discover the market forces driving and impeding the adoption of LED lighting Compare LEDs to compact fluorescent lamps CFLs and electron-stimulated luminescence ESL bulbs Gaze into the future of intelligent lighting including networked lighting systems Purchase the ebook edition of this O Reilly title at and get free updates for the life of the edition. Our ebooks are optimized for several electronic formats including PDF EPUB Mobi APk and DAISY all DRM-free. US CAN ISBN 978-1-449-33476-5 o REILLY I Twitter @oreillymedia I oreilly 1 PRESS 9 7 814 4 9 334765 LED Lighting Sal Cangeloso O REILLY Beijing Cambridge Farnham Kôln Sebastopol .

• Cơ khí - Chế tạo máy
• electroluminescence
• LED
• Band Gap
• LED Radiation Patterns
• Advantages of LEDs
• LED Characteristics
• LED Modulation
• Thermally activated delayed fluorescence
• Exciton energy transfer
• White OLED
• Activated delayed fluorescence
• White electroluminescence
• Solar cells
• EL imaging
• Micro cracks
• Advanced materials and devices
• A conventional electroluminescence
• báo cáo hóa học
• công trình nghiên cứu về hóa học
• tài liệu về hóa học
• cách trình bày báo cáo
• Journal of Chemistry
• Light emitting diode
• Polymer blend
• Poly(9 vinylcarbazole)
• Fluorescence solid state films