High-power straw hat in-line Led Lamp Beads

Although the light of white LED is as bright and warm as daylight, it has a pure "blue light core". LED is also a semiconductor Light Emitting Diode. Generally, a white LED Lamp is composed of a blue LED chip and a fluorescent conversion material that can emit yellow light under the excitation of blue light. After power-on, the blue light emitted by the chip becomes yellow light after irradiating the fluorescent material, and the yellow light and the remaining blue light are mixed to obtain white light In-Line Led Lantern.

　　 In the 1960s and 1970s, red and green LEDs were invented one after another, but the other one of the three primary colors of white light, blue LED, has not been available for a long time. Compared with red and green light, blue light has higher photon energy, and the growth of materials suitable for blue LEDs is difficult. Many research institutions have chosen to give up after repeated frustrations. But there are so few people who persevere and finally work a miracle Light Emitting Diode. In 1989, Akasaki Yu and Hiroshi Amano from Japan overcame numerous difficulties and developed the blue LED for the first time. Although blue LEDs had weak luminescence and no practical application value at that time, they ignited people's enthusiasm and hope for blue LED research. In 1993, Shuji Nakamura, who worked in Nichia, successfully developed the technology of high-brightness blue LEDs, making blue LEDs practical, and truly opening the LED lighting era. Their persistence and dedication finally broke the prediction that blue LEDs could not be realized in the 20th century Led Chip Processing.