LED invention process and legendary scientist Nick Holonyak Jr.
How was the LED invented? What kind of person was Nick Holonyak Jr. inventing?
The scientific name of the LED is a formal light-emitting diode, which is a semiconductor solid-state light-emitting device. The solid semiconductor chip is used as a light-emitting material, and is encapsulated by an epoxy resin. In the semiconductor, the carrier is combined to release excess energy to cause photon emission. There are no shortcomings such as filament light-emitting, heat deposition, light decay, etc., and directly emit red, yellow, blue, green, cyan, orange, purple, and white light. LED lighting products are lighting fixtures that are manufactured using LEDs as light sources. LED is called the fourth generation of illumination source or green light source. It has the characteristics of energy saving, environmental protection, long life and small size. It can be widely used in various fields such as indication, display, decoration, backlight, general illumination and urban night scene. In recent years, some economically developed countries in the world have launched a fierce technical competition around the development of LED. For example, the United States has invested 500 million US dollars to implement the national semiconductor lighting plan since 2000. The EU also announced the launch of a similar rainbow in July 2000. The plan, all hope to be able to sweep away the old days of white light bulbs.led ceiling light
In the industry, some people call the LED light source a long-life lamp, which means a lamp that never goes out. Due to the small size, fast response and long life of the LED, the LED lamp has good vibration resistance and small size, which can improve the utilization of the limited space of the car. Especially in the aspect of energy saving, LED is the best choice for the new light source of the headlight. At present, oil prices are rising rapidly. When we use ordinary bulbs on headlamps, each of the required power is 55-60 watts, and with LEDs it may be 3-5 watts, which saves a lot of energy and consumption. The variability of LED luminaires not only provides greater design space and freedom for the design of the headlamps, but may even lead to changes in the styling of the car, which may be more streamlined and more fashionable.led bulb light
The hot LED issue has become the focus of the world, so who is the first person to invent LED? Many people may not know that Nick Holonyak Jr., who invented LEDs in 1962, was an ordinary researcher at the General Electric Company (GE, also known as Singular), who created the first A red LED, and he also believes that other wavelengths of light can be emitted in the future, meaning that LEDs will have many different colors of light, and future white lamps will be replaced by LEDs.
Nick Holonyak Jr. received his Ph.D. in Electrical Engineering (EE) from the University of Illinois at Urbana Champaign. When he received his Ph.D. in 1954 and entered the American Bell Telephone Lab, one of the most important private research institutions in the United States, he Only 26 years old, he is full of outstanding talents. In 1954 he entered the US military service, then began to enter GE in 1957, continued to work until 1963, also invented the first semiconductor laser device that emits red light, which is called LD, called laser diode It was a key component of many optical disc devices, printers or photocopiers.led flood light
After inventing the LED, Nick Holonyak Jr. left GE in 1963 to become his alma mater, the professor of electrical engineering at the University of Illinois, as mentioned above, becoming a specialized talent trainer and a ethical scientist. Many of its students later set up their own business in Silicon Valley, California, and participated in the technology wave driven by Silicon Valley.led flame bulb
Nick Holonyak Jr. also invented the Thyristor, also known as the thyristor, which has the ability to convert alternating current and direct current. It will help the future of electric energy storage. Currently, 30% of the world's electricity is transparent. The switching fluid is converted. Many of his contributions have won the National Science Award, the National Technology Award, and the Lemelson Award in 2004. It is arguably the most invented invention award in the United States.
At the age of 79, he is still continuing research, hoping to integrate optical switches on the chip through LED technology, and to complete high-speed optical computers in the future.
Dalian Xinghai Technology Co., Ltd.