For such an emerging lighting field, the design and materials used are rapidly updating. All of the challenges mentioned above are actually the "growing troubles" that must be faced. In response, the industry continues to explore new materials. It is listed as silicone, which is used less in LEDs, but silicone has been used for a long time in many other fields such as advanced electronics, automobiles and communications, and has proved its reliable performance. Silicone can address the challenges of next-generation LED design, including high temperatures, increased lumen density, increased manufacturability, and more complex designs. Like LEDs, silicones are constantly improving. Recently, a number of leading optics and LED manufacturers have used a new class of optically gradeable silicones in their new designs and have achieved positive results.
Some grades in silicone are transparent, moldable silicones, such as those recently introduced by Dow Corning, represent a more advanced material that has been specifically adapted for LED applications, and has comparable performance to today's best optical materials. of. In addition, as with conventional silicone materials, the moldable silica gel has lower viscosity prior to curing, so the silicone can be more easily molded into a complex shape than the organic polymer or glass, as a secondary lens, a light pipe, Light guides and other optics offer more design choices. This feature can also help manufacturers reduce costs, shorten cycle times for injection molding and other processes, and reduce system costs for LED lighting sources and fixtures. Finally, compared with many organic materials, the chemical properties of silica gel can very well solve the current and future rising temperature of LED lighting systems.
