What is the importance of blue LED?

By far the most important application of blue LEDs has been for the efficient production of white light. There is a market for efficient white lighting in countries like the United States, where 21\% of electricity use in 2012 in the commercial sector was for lighting [].

How did blue LED change the world?

Blue LEDs, in combination with red and green LEDs (which had been discovered previously), make it possible to produce white light. And the reach of LED lights goes beyond developed countries. About 1.2 billion people in the world don’t have access to any form of electric lighting, Wetzel said.

What is the importance of LED?

LED lights are one of the latest inventions of scientists for reducing the negative effects of conventional bulbs to the environment. Studies reveal that LED bulbs produce less carbon than older bulbs, which can be very useful to get rid of the ill effects of global warming.

What is blue LED light used for skin?

Blue light therapy is most commonly used to treat sun damage and premalignant or malignant skin cancer growths. It can actually be used to prevent skin cancer and remove both precancerous skin lesions and cancerous skin lesions that haven’t spread to other areas of the body (or metastasized).

Who developed the blue LED?

Isamu Akasaki
This year’s Nobel Prize in Physics was shared between three Japanese blue LED inventors Isamu Akasaki, Hiroshi Amano and Shuji Nakamura.

Why are blue LEDs brighter?

A green LED with a 1 kOhm resistor is very dim at 5 V, whereas a blue LED with the same resistor is incredibly bright. The forward voltage of the blue LED is ~50\% higher, so the extra brightness is not because of increased current.

What is the most important feature of an LED?

Forward Current of LED LEDs are very sensitive devices and the amount of current flowing through an LED is very important. Also, the brightness of an LED depends on the amount of current drawn by the LED. Every LED is rated with a maximum forward current that is safe to pass through it without burning off the LED.

What inventions did the light bulb lead to?

The electric light bulb has been called the most important invention since man-made fire. The light bulb helped to establish social order after sundown, extended the workday well into the night, and allowed us to navigate and travel safely in the dark. Without the light bulb, there would be no nightlife.

What are the benefits of blue light?

Blue light is needed for good health: It boosts alertness, helps memory and cognitive function and elevates mood. It regulates circadian rhythm – the body’s natural wake and sleep cycle. Exposure to blue light during daytime hours helps maintain a healthful circadian rhythm.

What is the significant impact of the invention of high brightness blue led by Shuji Nakamura in early 1990s?

Professors Isamu Akasaki, Hiroshi Amano and Shuji Nakamura made the first blue LEDs in the early 1990s. This enabled a new generation of bright, energy-efficient white lamps, as well as colour LED screens. The winners will share prize money of eight million kronor (£0.7m).

When was LED invented?

1962
The next year, in 1962, Nick Holonyak, Jr. (the “Father of the Light-Emitting Diode”) invented the first LED that produced visible, red light while working at General Electric.