Three Revolutions In Human Lighting: LED For The Third Time.

- Apr 04, 2018-

Millions of years ago, when the first humans walked the earth, the sun was their only source of energy.The sun gave them light, warmth, and later food crops.Every night when the sun sets, the world is dark. -LED Bulbs

Since then, humans have been looking for other ways to light the world -- from fire and fire to modern leds.

During the development of human lighting tools, three major revolutions have been experienced, including the emergence and application of oil lamps, electric lamps and LED lights.-LED Bulbs

In ancient times, in order to protect the beast from the darkness, people put the rosin or fat things on the bark or wood chips and tied them together to make a light burning torch.In meeting the basic survival needs, it is hoped that the fire was applied to life, so people will be able to burn oil into a container, add the wick lighting, became the ancestor of the lamp.The use of oil lamps has extended the human schedule by two to three hours, the first revolution in human lighting history.The use of oil lamps has a long history, and oil lamps have been improved many times. Oil lamps are changed from animal oil to vegetable oil, which is replaced by kerosene.-LED Bulbs

The second revolution in human lighting was due to electricity.The advent of electricity led to a leap in human productivity, and the invention of electric lights also created a history of human electricity use.In 1879, Edison lit the first truly widely useful electric light, and the human race officially went to electric lighting.-LED Bulbs

During the electric lighting stage, the development course of lighting tools includes a variety of colorful electric lamps and lanterns.Among them: the electric light bulb also called incandescent lamp, this is the earliest electric light.Only 10% of the input energy of the incandescent lamp is converted into visible light energy, ranging from tens of hours to thousands of hours, and is still widely used.Halogen lamps are modified on the basis of incandescent lamps, which are smaller than incandescent lamps and are filled with heavy gas with high pressure, thus increasing the luminous efficiency and extending the service life.The steam light is made of the various elements that are sealed in the glass tube, and the steam light shines through the current.Steam lamps are common with high pressure sodium vapor lamps, mainly used in road lighting.-LED Bulbs

The third revolution in human lighting is LED light development.LED development in 1907, British scientist Joseph Henry Round for the first time in a piece of silicon carbide electroluminescent phenomenon was observed in the beginning, in 1962, America's general electric (GE), Nick Holonyak invented can emit red light LED, in 1972, George Craford invented the first orange light LED;The first blue light LED lamp appeared in 1993;By 1999, the first white LED lamp appeared, and finally, the lamps and lanterns which were close to the natural light were developed in the field of LED research and development, and began to be used for indoor lighting.LED has a series of advantages such as high efficiency, energy saving, long life and environmental protection, which is called the light of hope.LED lamps and lanterns of energy conservation and environmental protection, can let human life become more comfortable, healthy, convenient, is an essential part of human green lighting technology revolution, also is the human since incandescent lighting is also a huge revolution in history.-LED Bulbs

In addition to emitting energy efficient and high-performance leds, we have also learned how to control light and develop a range of sensors, such as solar sensors, sensor sensors and camera based technologies.

The future is bright.-LED Bulbs