PPT-Using light emitting diodes for lighting

By Grant Gorman and alec pahl 562013 Abstract Light emitting diodes are semiconductor devices that emit light when a voltage is places across them They have become increasingly popular in lighting applications because of their high efficiency and long lasting output . 1 Introduction A light emitting diode LED is a device which converts electrical energy to light energy LEDs are preferred light sources for short distance local area optical fiber network because they are inexpensive robust and have long life the lon ELE 432 Assignment # 3 Vijay Kumar Peddinti Light Emitting Diodes Principle The first known report of a light-emitting solid-state diode was made in 1907 by the British experimenter H. J. Round. (m Kara Lambson. OPT 310. General Info. Title. : Laser Emitting Module, Window Cap, Laser Pointer, and Light Emitting Module; US 7447243 B2. Filed: . August 29, 2005. Issued: . November 4, 2008. Inventors. Introduction to Light Emitting Diode (LED) Principle of LED - p-n Homojunction Double Heterojunctions LED Materials - Direct and Indirect Band Gaps LED CircuitA light emitting diode (LED) is a device LEDEL ISRAEL LIGHTING LTD. 0522-741576. 32 W . Power . consumption. 3520 . Luminous. flux. OSRAM. Duris. E5 . diodes. IP66. Protection . level. 100 000 hours. lifetime. 5 years. guarantee. Usage. LED luminary L-line developed for agricultural facilities lighting, especially for bird-farms. Main distinction from general LED luminaries is strong resistance for aggressive environments and fluids used for farms treatments and high power consumption efficiency.. Kara Lambson. OPT 310. General Info. Title. : Laser Emitting Module, Window Cap, Laser Pointer, and Light Emitting Module; US 7447243 B2. Filed: . August 29, 2005. Issued: . November 4, 2008. Inventors. ECE 4611. By Sean Davey and Jacob Walker. Image Courtesy of Topper Choice . http://topperchoice.com/working-principle-of-oled-organic-light-emitting-diode/. . In this presentation, we discuss OLED's. How they work, What they are made of, different strategies to manufacture them with layers thicknesses, and the many applications for them.. By: Garett . henriksen. 5/4/2015. Abstract. Light Emitting diodes are a semiconductor light source that emit light when the PN-junction is activated. This presentation will explain how LEDs are made, the materials that they are made out of, the structure that makes them what they are, and how the light that they create is used. . AD )-7 50J7 FlIa rv v \V W ns ton l-1u~ Al g --raft, Compan% Prepa red for: Defense Supply Agency DISTRIBUTED BY:- Na~onI Jeci*~t-nformtinSr-v-ice U. S. DEPARTMENT OF' CIMMERCE W2S5 Port Royal- Road- Assistant Professor. Department of Electronics. St. Joseph’s College, . Trichy. . . What Are Diodes Made Out Of?. Silicon (Si) and Germanium (Ge) are the two most common single elements that are used to make Diodes. A compound that is commonly used is Gallium Arsenide (GaAs), especially in the case of LEDs because of it’s large bandgap. . Stereographic projections. Low symmetry systems. Space groups. Deformation and texture. Interfaces, orientation relationships. Martensitic transformations. Crystallography. H. K. D. H. Bhadeshia. www.phase-trans.msm.cam.ac.uk/teaching.html. SUTHIN S. S3 ECE. ROLL NO:69. ORGANIC LIGHT EMITTING DIODES. OLED-ORGANIC LIGHT EMITTING DIODES. INTRODUCTION. The “Light Emitting Diode” or LED as it is more commonly called, is basically just a specialized type of diode as they have very similar electrical characteristics to a PN junction diode. . 1. Recap. When a current-carrying . semiconductor or metal. is kept in a magnetic field, the charge carriers of the . semiconductor. experience a force in a direction perpendicular to both the magnetic field and the current. At equilibrium, a voltage appears at the .