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直线整体双光镜是采用机械装夹定位方式,在同一镜片上加工两个视区,即运用区和近用区。新型夹技术生产的直线整体双光镜,比其他类型的双光镜片在使用性能和质量方面均有明显提高,尽管在矫正患者视力方面是相同的,但其矫正效果有很多优点。 一、光学中心重合性好:新型夹具在加工工艺中保证了在加工主片与子片时均以它们的几何中心为基准,因此主片与子片的光学中心重合性好,减小了视
The overall line of double-light straight mirror is the use of mechanical clamping positioning mode, in the same lens processing two visual areas, that is, the use of area and near the area. The new monolithic bi-directional monolithic biconcave lens offers significantly improved performance and quality over other types of biconvex lenses. Although it is the same in terms of vision correction, its correction has many advantages. First, the coincidence of optical center is good: the new fixture in the processing process to ensure that the processing of the main film and sub-film with their geometric center as a benchmark, so the main film and sub-optical center coincide, reducing the visual