How to distinguish light guide plate and diffuser plate for LED panel light?
LED panel light diffuser refers to the scattering phenomenon caused by light penetrating other media in the process of advancing. As long as the light from two different media from A to B will cause light penetration or reflection due to the obstruction of refractive index or interfering substances Or absorption, the penetrating part will be called light diffusion due to dispersion, which has three physical phenomena.
The LED panel light guide plate is made of optical-grade acrylic/PC sheet, and then uses high-tech materials with extremely high reflectivity and no light absorption to print on the bottom of the optical-grade acrylic sheet with UV screen printing technology. light spot. The optical grade acrylic sheet is used to absorb the light emitted from the lamp and stay on the surface of the optical grade acrylic sheet. When the light hits each light guide point, the reflected light will spread to all angles, and then destroy the reflection conditions by the light guide plate. Shot from the front. Through various light guide points of different density and size, the light guide plate can be made to emit light uniformly. The purpose of the reflective sheet is to reflect the light exposed on the bottom surface back into the light guide plate to improve the use efficiency of light. Functional differences:
The main functions of the diffuser plate are:
1. Disperse the luminous flux and distribute the light evenly (some composite diffusers can control the exit angle in addition to homogenizing the light)
2. Support the backlight structure to protect the underlying optical material from damage
The main functions of the light guide plate are:
1. Guide the luminous flux of the LED panel light point light source evenly distributed in the entire surface. His key role is to guide the distribution of light.
2. Use the reflection mechanism to utilize the luminous flux more efficiently and control the light distribution.
Differences in application areas:
1. The acrylic light guide plate is suitable for LED lighting fixtures with direct light sources, such as grille lights and high-grade aluminum lamps.
2. PC diffuser plate is suitable for side light source LED lighting fixtures, such as flat panel lights and professional film viewing lights, usually used in conjunction with light guide plates
3. The PS diffuser is mainly used for some low-grade ordinary LED lights.
