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Do you know the principle of solar lighting system? We will introduce LED light source and its driving technology

Primary and secondary optical design of LED

November 3, 2021
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| LED light source and its driving technology
Primary and secondary optical design of LED

The optical design of the LED is based on the premise of the existing LED to improve the limitation of the light-emitting angle of the LED itself. LED optical design is divided into primary optical design and secondary optical design. The primary optical design starts with the shape design of the LED packaging material and […]

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Common LED optical parameters and their measurement

October 29, 2021
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| LED light source and its driving technology
Common LED optical parameters and their measurement

Like traditional light sources, the common optical parameters of LEDs include light measurement, radiance measurement, and color measurement. Among them, the most important and basic is the average luminous intensity and total luminous flux in the luminosity measurement. The following will introduce how to perform LED optical measurement. â‘ Measurement of average luminous intensityIn many LED […]

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What kind of structure does the power LED chip adopt?

October 22, 2021
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| LED light source and its driving technology
What kind of structure does the power LED chip adopt?

With the continuous development of material technology, the design and manufacturing technology of commercial lighting-level LEDs has made considerable progress. LED manufacturing mainly includes chips, phosphors, optics, packaging, and electrostatic protection. The production of semiconductor materials for GaN has been greatly improved from traditional methods, such as the use of laser lifting methods to remove […]

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What are the methods to produce white LEDs?

October 21, 2021
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| LED light source and its driving technology
What are the methods to produce white LEDs?

The appearance of white LED has opened a brand new door for semiconductor lighting. At present, more and more indoor and outdoor lighting projects have adopted white LEDs. In just a few years after its birth, the luminous efficiency and power of white LEDs have made great progress. White LEDs have become The main force. […]

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Structural characteristics of LED light-emitting devices

October 18, 2021
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| LED light source and its driving technology
Structural characteristics of LED light-emitting devices

Structural characteristics of LED light-emitting devicesThe basic structure of the traditional LED is shown in Figure 1. The LED chip is fixed on a conductive and thermally conductive metal bracket with two wires. The lead with the reflective cup (or reflective bowl) is the cathode, and the other lead is the anode. The periphery of […]

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Types of non-radiative recombination centers in LED semiconductor materials

September 16, 2021
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| LED light source and its driving technology
Types of non-radiative recombination centers in LED semiconductor materials

There are non-radiative recombination centers in semiconductor materials, also known as extinction centers, which make the non-radiative recombination process in many semiconductor materials a dominant process. Material background impurities, lattice defects, complexes of defects and impurities, etc. may all become non-radiative recombination centers. They are very harmful to luminescence. Many types of non-radiative recombination processes […]

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What are the types of radiation recombination?

September 9, 2021
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| LED light source and its driving technology
What are the types of radiation recombination?

The radiative recombination process has nothing to do with the source of non-equilibrium carriers, but is closely related to the physical properties of the material. Radiation recombination can be produced directly by the recombination of electrons and holes between bands, or by intermediate energy levels formed by crystal defects, doped impurities and impurity polymers. In […]

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LED’s light-emitting mechanism and luminescent materials

August 18, 2021
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| LED light source and its driving technology
LED's light-emitting mechanism and luminescent materials

LED is the abbreviation of Light emitting diode (light emitting diode), essentially a semiconductor diode, including positive and negative electrodes, P-type semiconductor layer, N-type semiconductor layer, light-emitting layer and base layer (as shown in Figure 1), the actual LED needs to consider factors such as light emission and heat dissipation, and its structure is much […]

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