Led Tail Lights
LEDs are light emitting diodes. LEDs are made by semiconductor materials. LED is a p-n junction diode that emits inconsistent narrow spectrum light when forward biased. In 1955, Rubin Braunstein, who worked in the Radio Corporation of America, first reported on infrared emission from GaAs (gallium arsenide) and other semiconductor alloys. The scientist, Rubin Braunstein was born in 1922. And the first practical visible spectrum LED was developed in 1962. It was developed by Nick Holonyak Jr. of the General Electric Company.
The tail lights are the small lights used in the vehicles as an indicator. The lighting accessories such as LED light bulbs and auxiliary LED light bars are used for increasing the visibility of the motorcycles both the front and rear. Now, the motorcyclists are too much interested to improve the visibility to other vehicles, because most of the motorcycle accidents are originated by non-visibility. But in many motorcycles there were used a single, cheap, dim, 1156 or 1157 incandescent tail light bulb and some lame 21 watt signal lights in miniscule reflectors and lenses. Many new types of light bulbs are introduced in the industry but, the motorcycle indicator lighting has not changed in decades. The motorcycle manufactures must be respond to this.
Now-a-days the LED tail lights are used for lighting the motorcycles but, a few bikes has been driven by styling concerns. Recently, high intensity LED products are introduced as " next generation" which will be very useful for motorcycles and trucks. In the commercial vehicles like motorcycles, LEDs are perfectly suited because of the advantages such as the resistance to vibration failure, no heat creation and low power consumption. But, in the early days there was a problem. The problem is that the LED light bulbs for motorcycles were not so obvious than the incandescent bulbs.
The created LEDs, are not equal. There are several types of LEDs created. For example, the EI Cheapo LEDs can have as little as a 5-degree wide spread of their highest intensity light. In the motorcycles, widely spreading light is needed. The developers of higher quality LEDs have claimed that these LEDs spread to 120 degrees. When a light in a vehicle is widely spread then the visibility of the vehicle is increased at a greater distance.
The high quality LEDs are very expensive. So most of the people do not use the high quality LEDs. But a very few use it after cost-benefit analysis of LED and incandescent bulbs. The LEDs are long lasting.
The quality of LED depends on the semiconductor technology and manufacturing process used. The efficiency of the LEDs is depends on the proper design of the circuit board. The LED may be shorting its life, when the resistor value is not optimized.
But, there arises a problem. The problem is that there did not exist the technology for high intensity LEDs and so the price is very high which is not acceptable to motorcyclists. The 1157 tail light is replaced by the 1. 85" light cluster with 48 individual LEDs. Because this LED is brighter than the incandescent bulbs.
Because of the high manufacturing cost of LED tail lambs, the motorcycle manufacturers have been very slow to introduce these LED lambs. The development of manufacturing technology will bring down the cost of LEDs that will make the LED tail lambs cheaper. We hope that in future all conventional incandescent tail lambs may replace with LED tail lambs in all vehicle.