Sanan is mainly engaged in the research and development, production, and sales of semiconductor new materials, epitaxy, chips, and devices. Its products are widely used in lighting, displays, backlighting Mini/Micro、 Fields such as infrared sensing, plant lighting, high-speed rail, new energy vehicles, 5G, intelligent mobile terminals, 3D recognition, cloud computing, communication base stations, photovoltaic inverters, etc. In the field of silicon carbide, a key semiconductor material, Hunan Sanan, a subsidiary of Sanan Optoelectronics, is one of the few vertically integrated manufacturing platforms for the entire silicon carbide industry chain in China. The industry chain includes crystal growth, substrate preparation, epitaxial growth, chip processing, and packaging testing. Its products have been widely used in fields such as new energy vehicles, photovoltaic energy storage, charging stations, AI, and data center servers. At present, Hunan Sanan has a 6-inch silicon carbide supporting production capacity of 16000 pieces/month, an 8-inch silicon carbide substrate production capacity of 1000 pieces/month, an epitaxial production capacity of 2000 pieces/month, and an 8-inch silicon carbide chip production line has been put into operation. It is worth noting that the process and yield of Hunan Sanan's 6-inch substrate and epitaxial have been continuously optimized, and stable shipments have been made to international customers. The 8-inch substrate and epitaxial have achieved small-scale production. Currently, the AI/AR smart glasses industry is ushering in a new round of development boom. With Meta and other tech giants planning to continue launching new AR glasses by 2025, driven by both market demand and technological innovation, the high growth potential of silicon carbide materials in emerging application scenarios such as AR glasses is becoming increasingly prominent. With its two core characteristics of high refractive index and high thermal conductivity, silicon carbide can systematically solve the three major pain points of narrow field of view, rainbow artifacts, and difficult heat dissipation that the AR glasses industry has long faced. Especially in the research and development of the core component of diffractive waveguide lenses, it demonstrates irreplaceable technological advantages. Optical diffraction waveguide is a display technology that uses a grating structure to guide and propagate images. It can significantly reduce the thickness of the lens while maintaining a large field of view angle, making the appearance of AR glasses closer to ordinary glasses and improving wearing comfort. The advantage of silicon carbide in this technological stage is particularly significant: the refractive index of silicon carbide is as high as 2.6-2.7, which is nearly 50% higher than traditional glass or resin materials (1.8-2.0). This means that under the same field of view conditions, SiC waveguide lenses can be designed thinner and simpler: a single-layer lens can achieve a super large field of view of 70 ° -80 °, with a thickness of only 0.55mm and a weight of only 2.7g. This not only reduces the burden of wearing from the source, but also effectively solves the long-standing "rainbow pattern" problem of diffractive optical waveguides, significantly improving the purity of the image. In addition to its optical advantages, silicon carbide also excels in power management and heat dissipation. The MicroLED display screen of AR glasses requires high brightness output, which is usually accompanied by high power consumption and thermal accumulation. The thermal conductivity of SiC is as high as 490W/m · K (close to copper and more than a hundred times higher than ordinary glass), which can quickly dissipate heat, ensure stable operation of the light source, and extend its lifespan. Meanwhile, as a power device material, SiC can also provide efficient energy management, helping glasses break free from the constraints of "short battery life" and truly move towards all-weather wearing. From the perspective of market prospects, the AR glasses industry is growing rapidly. According to WelsennXR data from Weishen Information, the global sales of AR glasses in the second quarter of 2025 were 151000 units, a year-on-year increase of 40%. It is expected that the sales volume in 2025 will be 850000 units, a year-on-year increase of 70%. In the future, with the rapid development of AI technology and the continuous upgrading of smart glasses hardware, AI+AR smart glasses will enter a period of high-speed development, and the global shipment of AI glasses is expected to increase to 80 million pairs by 2030. Regarding the application of silicon carbide materials in the field of AI/AR glasses, Sanan Optoelectronics stated that silicon carbide optical substrate products work closely with domestic and foreign terminal manufacturers and optical component manufacturers in the AI/AR glasses field. They have already delivered small batches to multiple customers and are optimizing optical parameters. In the future, new applications in AI/AR glasses and other fields will become new growth points for their silicon carbide business.