White LED (Light Emitting Diode) is expected to be the next generation of lamps due to its properties such as high brightness, reliability, low consumption and long life span. In this article , the proposed system for indoor optical wireless duplex channel communication system, as an access to the Internet, utilizing both white LED lights and infrared LEDs is described. The illuminance and power distribution, impulse response, and modulation techniques has been studied in this article. LED lights and receivers design strategies has also been ....etc

[:=Read Full Message Here=:]

Thank you..i will like to know how to do this project.
i would like to know how to do this project ....etc

[:=Read Full Message Here=:]

gjhjh ....etc

[:=Read Full Message Here=:]

white led blacklight control for motion Blur reation and power minimization in large lcd ,tvs ....etc

[:=Read Full Message Here=:]

yes.the ieee paper is indoore optical wireless communication-potential and state-of-the-art. ....etc

[:=Read Full Message Here=:]

220v Light Bulb Dimming Circuit

INTRODUCTION

A light bulb is a device that illuminates a place. It makes light by heating a metal filament wire to a high temperature until it glows. This is done by supplying electrical current to the feed-through terminals or wires embedded in the glass.

Pulse-width modulation (PWM) is a commonly used technique for controlling power to inertial electrical devices, made practical by modern electronic power switches. It is a way of digitally encoding analog s ....etc

[:=Read Full Message Here=:]

plz mail me the full report on the white led. ....etc

[:=Read Full Message Here=:]

Until recently, though, the price of an LED lighting system was too high for most residential use. With sales rising and prices steadily decreasing, it's been said that whoever makes the best white LED will open a goldmine.
White LED lighting has been used for years by the RV and boating crowd, running off direct current (DC) battery systems. It then got popular in off-the-grid houses, powered by photovoltaic cells. It used to be that white LED was possible only by rainbow groups of three LEDs -- red, green, and blue -- and controlling the c ....etc

[:=Read Full Message Here=:]

please send me instructions about how to do this project ....etc

[:=Read Full Message Here=:]

There are two ways of producing high intensity white-light LED. One is to first produce individual LEDs that emit three primary colors ? red, green, and blue, and then mix all the colors to produce white light. Hence the product is called multi-colored white LEDs (sometimes referred to as RGB LEDs). Because its mechanism is involved with sophisticated electro-optical design to control the blend and diffusion of different colors, this approach has rarely been used to mass produce white LEDs in the industry. Nevertheless this method is particula ....etc

[:=Read Full Message Here=:]