Aspheric lenses are highest quality molded and fire polished lenses, designed to minimize spherical aberrations which are of major concern in condensing systems.
我们生产的非球面透镜质量最好，采用火焰抛光透镜，使球面相差最小化-对冷凝系统尤为重要。
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The overall control and test technology for spherical radius of curvature, central thickness, surface accuracy anddecentring error of lenses have been discussed.