物镜; 物端透镜

1. 物镜：物体(Object)位于物镜(Objective lens)前方,离开物镜的距离大于物镜的焦距,但小于两倍物镜焦距. 所以,它经物镜以后,必然形成一个倒立的放大的实像(Real image). 实像位于目镜(Ocular lens)的物方焦点F2上,或者在很靠近F2的位置上.

2. 接物镜,镜头：objective holder 镜头座 | objective lens 接物镜,镜头 | objective micrometer 物镜测微计

3. 物镜透镜：object program module 目标程序模块 | objective lens 物镜透镜 | objective prism 物镜棱镜

4. 物镜;接物镜：Obelia 薮枝螅属 | objective lens 物镜;接物镜 | obligate 专性的

noun

1. the lens or system of lenses in a telescope or microscope that is nearest the object being viewed

Synonym: objectiveobject lensobject glass