- 1. History of Light
Edison's greatest contribution to the problem of electric light was in filament design. He tried over 6,000 alternative filament materials over two years, and spent $40,000 conducting more than 1,200 experiments.
After testing substances from around the world, Edison found platinum to be effective. However, it was expensive and provided only lim...
- 2. History of Lighting and Lamps
The first lamp was invented around 70,000 BC. A hollow rock, shell or other natural objects found was filled with foam or similar material soaked in animal fat and ignite. People began to imitate the natural forms of artificial ceramics, alabaster and metal lamps. Wicks were added subsequently to control the burning rate. Around the 7th century BC ...
- 3. White LEDs
He has over 30 years since the introduction of the first LED (light emitting diode) and, finally, we now have a white LED, lamps in the field of architectural details and small competitors were lighting applications.
LEDs have a phenomenal growth in recent years with new applications ranging from automotive lighting and enjoy VMS (variable...
- 4. Measurement Of LEDs
LEDs - Dominating Lighting Technology
If there was ever a question, such as LED lighting technology is mainly to take a look around. It is almost everywhere. By standard indicators for the hi-fi, laptops and toys to traffic lights, variable message signs and Automotive Lighting, the LED has increased exponentially in recent years, no end in sight ...
- 5. LEDs Shine In Traffic Applications
Variable Message Sign (VMS)
Light Emitting Diode (LED) have a permanent place for the transfer of VMS (VMS) applications. After opening a little happier in the 1980s, the LED has become the preferred source of VMS for the new millennium. Virtually maintenance-free LEDs offer many advantages over other available options RCC today. LEDs used...
- 6. LED Alphabet Soup
ChemistryIf the light came first commercially available, there are about 30 years, nobody really paid attention to what was or what it consisted of chemicals. This was partly to do some basic types and colors (eg, GAP - red and green, and GaAsP - yellow) is available. Today, to get new colors, or wavelengths, and to improve the performance and reli...
