1. Lamp structure
The most important light-emitting structure of an Eyelove Healthy Lighting LED is a lamp-like lamp in the lamp. Although it is small in size, it has its own strengths. After the Eyelove Healthy Lighting LED bead structure is enlarged, a wafer having a shape like a sesame is found. This wafer structure is extremely complicated and is divided into several layers: the uppermost layer is called a P-type semiconductor layer, the middle layer is a light-emitting layer, and the lowermost layer is called an N-type semiconductor layer.
2 lighting principle
From a physics point of view: when a current passes through a wafer, electrons in the N-type semiconductor collide with holes in the P-type semiconductor to form a photon in the luminescent layer, and emit energy in the form of photons (ie, the light that everyone sees). . LEDs, also known as light-emitting diodes, are small and fragile and are not convenient for direct use. The designer then added a protective casing to it and sealed it, thus forming an easy-to-use LED bead. After a lot of LED beads are joined together, a variety of Eyelove Healthy Lighting LEDs can be constructed.
3 different color Eyelove Healthy Lighting LEDs
Semiconductors of different materials produce different colors of light, such as red, green, blue, and so on. However, to date, no semiconductor material has been able to emit white light. So how did the white Eyelove Healthy Lighting LED come from? How do blue LEDs turn into white Eyelove Healthy Lighting LED?
In fact, the biggest reason is that there is an extra layer of phosphor in the wafer. The basic principle of luminescence does not change much: between two layers of semiconductors, electrons collide with holes and produce blue photons in the luminescent layer.
A portion of the generated blue light is emitted directly through the fluorescent coating; the remaining portion is struck on the fluorescent coating and acts to produce yellow photons. The blue photon interacts with the yellow photon (mixed) to produce white light.
