The fringes produced by ordinary glass are mainly caused by the uneven mixture, the corrosion of refractories (mainly introducing al), and the agitation during the manufacture of glass products.

        Therefore, the optical glass should start from these aspects, as well as the granularity of raw materials, weighing has high requirements. The furnaces are made of ceramic or platinum. Generally, pouring method, rolling method, cylinder breaking method and liquid method are used to reduce the agitation of glass during molding.

        In addition, the structure of the furnace is also different from that of the daily glass furnace. It is divided into melting pool (feeding), regulating pool (regulating melting atmosphere), refining pool (clarification) and homogenizing pool (mixing). The daily output of the large furnace is generally only 5 tons.

        Nantong Jingsheng Optical Instrument Co., Ltd. products mainly include: colored optical glass, colorless optical glass, filter, filter, black UV glass, infrared glass, thermal insulation glass of surgical lamp, color rising thermal insulation glass, prism of airport lighting system, lens filter, blue light of mobile lens, quartz, high borosilicate glass window, stage lighting color film, prism, transparent Mirror, cylindrical mirror, etc.