With the development of the LED lighting industry, the LED panel light derived from the LED backlight has uniform light, no glare, and exquisite structure. It has been loved by many people. I have studied and developed the flat panel lamp for 2 years. Flat lamp structure design and precautions, I hope to help everyone The structure of the surface light source mainly includes the following materials Aluminum frame Appearance structure, and main structure of LED heat dissipation - generally use AL6063, aluminum extrusion die, low initial cost input, beautiful surface treatment, good heat dissipation effect. Some days ago, I also found that some manufacturers started to make die-casting frames, so IP rating Can be higher, and the light is better, the overall appearance is beautiful, but the cost of the initial investment in the mold is higher. The light of the light guide plate is evenly dispersed, and the function of shielding the mesh point is also used. The diffusion plate generally uses acrylic or 2.0 material, and the cost of the acrylic is lower and the light transmittance is slightly higher than that of the PC. The acrylic is brittle and resistant to aging. The performance is weak, the price of the PC is slightly expensive, but the anti-aging performance is strong. The diffuser plate cannot see the dots after being mounted, and the light transmittance is about 90%. Acrylic transmittance is 92%, PC is 88%. You can choose the diffuser material according to your needs, generally use acrylic materials. The side LED light is deflected by the dot refraction to change the angle of the light. The light guide plate is the heart of the flat lamp. The dot design is very important. The dot design is not good. The overall light effect seen is very poor. Generally, the middle light will appear. Both sides are dark 2. There are bright edges when entering the light, and the dark is in the middle 3. Standing at different angles, the overall brightness is inconsistent 4. The local dark areas are obvious. The light effect of the light guide plate is very large in the design of the outlet, followed by the selection of the plate, but it is not right to pursue the brand of the brand. Because many brand manufacturers like Mitsubishi of Japan, most of the good plates are People order well, many Mitsubishi plates out of the market are mostly scraps, and their light transmittance is not as high as that of their own plates, so the choice of plates does not have to look at the manufacturers of the plates, as long as the test transmittance is high, the light effect is OK. In fact, it can be Reflecting the back light on the back of the light guide - typically RW250
Hot Air Solder Level is a kind of surface treatment. this surface treatment can protect the PCB Board surface and facilitate PCB Assembly. Its advantage is that it is easy to weld, but the disadvantage is that the surface is relatively poor in smoothness.
According to whether it contains lead or not, HASL can be divided into two types: Hot Air Solder Level with lead and Lead-free hot Air Solder Level. Hot Air Solder Level Hot Air Solder Leveling,Hot Air Rework Station,Hot Air Soldering Station,Hot Air Soldering Orilind Limited Company , https://www.orilind.com
2. Diffusion plate
3. Light guide plate
4. Reflective paper
