短語詞組短語achromatic doublet lens 消色差雙郃透鏡field achromatic objective lens 平場消色差物鏡Achromatic Barlow lens 差的achromatic c lens 消色差透鏡achromatic convex lens 消色差集光鏡flat -field achromatic objective lens 平場消色差物鏡ultra achromatic lens 超消色差透鏡achromat achromatic lens 消色差透鏡 返回 achromatic lens