Comparison Of The Advantages And Disadvantages Of Three Kinds Of Diffuser Sheet Of Led Panel Lights
Dec 03, 2021
1. What is the LED panel light diffuser sheet?
The light of the light guide plate is uniformly led out, and it can also play the role of blurring the dots. Diffusion plates generally use acrylic 2.0 sheets or PC materials, followed by PS materials. The light transmittance of acrylic is 92%, the light transmittance of PC is 88%, and the light transmittance of PS is as high as 80%. At present, most manufacturers It uses acrylic material as the diffuser. The comparison of diffuser materials is shown in the table.
The cost of acrylic is lower, the light transmittance is slightly higher than that of PC, and the anti-aging performance is weak. PC has high cost and strong anti-aging performance. After the LED panel light diffuser is installed, the dots cannot be seen, and the light transmittance must reach 90%. The fire rating of the PC diffuser can be 94V0 or 94V2. At present, all LED panel lights use PS materials, and the price order is PC-PMMA-PS
2. Features of light diffuser sheet
①The traditional diffuser sheetuses frosting treatment on the surface of the material. The haze is low, the light absorption rate is high, and the light transmittance is low, which can only reach about 50%. According to the characteristics of lamps and lanterns on the market, especially the characteristics of LED flat lamps and downlights, the new diffuser plate uses optical grade PMMA/PC and other plastic sheets as the base material, adopts advanced optical design and diffuser materials, and is processed by scientific formulas to make the light in The chemical particles and the resin continuously refract, reflect and scatter, so as to scientifically adjust the light propagation direction, so that the diffuser product has a high light transmittance and a good light diffusion effect.
②Smooth surface matte treatment, high-grade and beautiful visual effect, stable wear resistance and scratch resistance performance, UV resistance and good weather resistance. Among them, the PMMA diffuser can be used for a long time below 80 ℃.
