Low-R glass is a new type of multi-element magnetron sputtering coated glass developed independently by our company. After in-depth study of nano-insulating materials, we found that carriers with diameters of 10-15 nanometers have good selective absorption to the spectrum and good shielding effect to infrared rays. After the magnetron sputtering target is prepared, the coated glass with good lighting, low visible light reflection and good thermal insulation can be obtained by sputtering a layer of thermal insulation functional layer with nanometer thickness on the surface of the glass through large-scale magnetron sputtering coating equipment. The glass with multiple colors has excellent deep processing properties, such as single use, tempered, Laminated and hollow.