三层消球差镜 triple aplanat

消球差物镜 aplanatic objective

消球面差透镜 aplanatic lens

消球差透镜 [天] [光] aplanatic lens ; [天] [光] aspherical lens ; [光] aplanat lens ; applanatic

消球差放大镜 aplanatic magnifying lens ; aplanatic magnifier

消球差望远镜 [天] aplanatic telescope

消球差透镜系统 Aplanatic Lens System

消球差聚光镜 aplanatic condenser

消球差三透镜组 aplanatic triplet