As we know lights are very important in our daily lives whereby everyone uses it every day. Without light, we will be living in the world of darkness. Therefore, it somehow motivates me to do a research on it to know how photonics caused a change in lighting that we used in the past to what we are having now. After doing this literature research on the photonics related to …show more content…
When there is a power supply provided, the filaments will increase in temperature. As the temperature increases, it will get hotter and hotter as the filaments draw even more power. Thus, the bulb will get lighted up. Another way is to fill the bulb with an inert gas which is to prevent evaporation of the filament and not resulting in any significant heat losses throughout the process.
Nowadays, solid-state lighting has become a more popular choice as compared to the filaments light bulb that are used in the past. Many users will prefer light emitting diodes for the lighting applications. In addition, it offers many advantages as compared to incandescent light bulb. Firstly, it has a longer life span. Light emitting diodes are also energy saving as the lighting systems provides 3 times more luminous efficacy. In overall, It has a better quality light output, safe to touch as it runs on a low voltage and durable.
To make improvements to the solid state lighting that is existing now, research and development work have been done so as to know how lighting can be used to gather information that aids both the producers and