Importance of Diffuser sheet Selection in Lightbox Design
In led light box design, the choice of diffusion sheet directly determines the light effect and visual effect of theled light box. Diffuser sheet is not only a material to support the structure, but also a key factor for light propagation and distribution. As two important attributes of diffusion sheet , color and transmittance rate affect the final performance of the light box. In this article, we will analyze the impact on light box design and selection method from the perspective of color and light transmittance rate.
Color Considerations for Diffusion sheet
First of all, the color of Optical grade diffuser sheet directly affects the light rendering effect. Common diffusion plate colors are white, milky white and transparent, etc., of which white and milky white diffusion plate is widely used in light box design. White diffusion board can effectively soften the light, provide uniform and natural light effect, suitable for light boxes that need to highlight text or images. Milky white diffusion panels, on the other hand, have a certain degree of shading, which can hide the light source structure inside the light box, while still maintaining good light uniformity. Transparent diffusion panels are ideal if higher light transmittance and purity is required, but they require higher uniformity of the light source and are suitable for specific design scenarios.
The Role of Light Transmittance in Lighting Performance
Transmittance rate is another keyattribute of diffusion sheet which determines how much light can penetrate the panel and travel to the surface of the light box. Higher transmittance diffuser sheet allow more light to pass through, thus increasing the overall brightnessof the light box, but may sacrifice some light uniformity. Lower transmittance diffusion panels spread the light better, creating a softer light effect, but the overall brightness will be weakened. Therefore, when choosing a diffusion panel, you need to take into account the brightness requirements and light performance of the light box. For example, light boxes for outdoor advertising usually need high brightness, suitable for selecting diffusion panels with high transmittance; while light boxes for indoor display pay more attention to the softness of the light, suitable for the use of moderate or low transmittance diffusion panels.
Combining Color and Transmittance for Optimal Design
In the actual design, color and light transmission often need to be used in combination. Designers should weigh the light box according to the application scene, the type of light source and the visual demand. With the advancement of technology, many diffuser sheet materials can also be further optimized for light distribution by adding special coatings or microstructure design, providing more possibilities for light box design.
