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美能达相机公司最近批量生产激光打印机等用的塑料制多角镜获得成功。多角镜是激光打印机之类光学系统装置中使用的关键元件。过去是用专用机器一面面切削高纯铝材而成,工序繁多费时。公司研制成新的小型精密注射模塑成形机,进行模塑成形后,蒸镀铝膜。与过去的方法相比,管理特别方便,成本又低;不管镜子的面数如何,制造成本可降到过去的一半左右。此次开发的塑料多角镜,有4面镜和6面镜两种。作为面和面间距的内接圆直径为30mm,厚4.5mm,材
Minolta has recently succeeded in mass-producing plastic polygon mirrors for laser printers and other mass production. Polygon mirrors are key components used in optical system devices such as laser printers. In the past, it was made by cutting high-purity aluminum with a special machine. The company developed a new small precision injection molding machine, after molding, evaporation of aluminum. Compared with the previous method, management is particularly convenient, low cost; regardless of the number of mirrors, manufacturing costs can be reduced to about half of the past. The development of plastic polygon mirror, there are 4 and 6 mirror mirror two kinds. The inscribed circle diameter is 30mm, thickness 4.5mm, as material for the surface and surface spacing