field lens

名词物镜

1. 场透镜：向场透镜(field lens)能使更多的光线进入目镜. 光阑位于前透镜的焦平面,是物镜形成中间像的位置. 出射光瞳或目点(exit pupil or eye point)是离开目镜的光锥最窄的部分. 正确的位置,观察者的瞳孔与目点重合一致. 高目点(higheye point)目镜,

2. 物镜：field length 字段长度 | field lens 物镜 | field lighting 工地照明

3. 向场镜：field intensity 场强 | field lens 向场镜 | field lenses 向场透镜

4. 场镜：field ion microscope 场致离子显微镜 | field lens 场镜 | field magnet 场磁铁

1. The extended field of view is superimposed onto the transparent spectacle lens of patients'dominant eyes.

2. field lens的解释

2. The research firm said the relatively high profit margin of SLR products and accessories such as lens has attracted many companies entering the field.

noun