back focal plane meaning in English
反聚焦面
后焦面
后焦平面
后聚焦面
Examples
- At the position of the zeroth order , all wavelengths from each slit add constructively ; this produces the bright white light you see as the zeroth order at the center of the back focal plane of the objective ( figures 3 and 4 )
在零级位，从栅格标本的各个窄缝中发出的所有波长会产生相加的干涉，在物镜的后焦面中心会看到明亮的白色像。 - At the back focal plane of the objective , the blue wavelengths from each slit interfere constructively to produce the blue area of the diffracted image of each spectrum or order ; similarly for the red and green areas ( figure 4 ( a ) )
在物镜的后焦面，从各个窄缝发出的蓝色波长光产生增强干涉而产生各级的衍射图像的蓝色区域，红色波长和绿色波长也一样(图4 ( a ) ) 。 - Electrons which pass through the thin specimen are brought to a focus in the back focal plane of the objective lens , this lens , like all electromagnetic lenses , acts as a converging lens and thus forms a diffraction pattern in this b . f . plane
穿越薄样本的电子被带到目标透镜背面焦点平面的一个焦点，这个透镜，象所有的电子透镜一样，充当了聚焦透镜的作用，因此，构造了在这个背面焦点平面的衍射模式。 - The light route used by measuring instrument determined its volume , according to the place between sampling area and lens , with the application background limits , the miniature atomized particles size measuring instrument takes scheme that the sampling area locate in front of the lens and the optic - electronic sensor at the back focal plane of the lens . the miniature atomized particle size measuring instrument employs
测量仪器采用的光路直接影响仪器的结构尺寸，接收透镜和采样区位置的关系具有不同的配置方案，由于雾粒粒径测量仪应用背景的限制，所采用的光路配置方案是被测颗粒位于透镜前方，光能接收器件位于透镜后焦面上。