a piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope)
透镜,镜片。
the light-gathering device of a camera, typically containing a group of compound lenses.
(照相机的)镜头。
【物理】 (聚集光、声、电子等或改变其方向的)透镜。
【剖】 <Bold>CRYSTALLINE LENS</Bold>的简称。
short for
<Bold>CONTACT LENS</Bold>的简称。
"late 17th cent.: from Latin,