focal distance的例句大全

A New Manufacture Technique for Long Distance Focal Length Lens

一种新的长焦距透镜的制造方法

This system composed of a spatial filter and a focusing objective lens with long working distance ( l9mm) and short focal length ( f0 ≤ 3. 25mm).

它由一个具有一定倍率的空间滤波系统和一组短焦距、长工作距离的聚焦物镜组成。

The effective focal length and back working distance of the system are respectively 100 mm and 113 mm, while the F number is 2.0.The system which has only three lenses contains two negative germanium lenses and one positive zinc selenide lens.

该系统全视场为14°，有效焦距为100mm，后工作距为113mm，F/2.0.系统采用锗和硒化锌两种材料，为三片镜结构。

At first, the particle is considered as a highly aberrated spherical lens, so that its focal length is gained, and then the equivalent thin lens is found under the condition of the equal focal length and equal light distance.

首先将颗粒作为高象差的球形透镜求出其焦距，再由等焦距和等光程条件找出与球形透镜等价的薄透镜。

From the epicenter of the distance to the source told focal depth.

从震中到震源的距离叫震源深度.

object distance, image distance and focal length are distances, so they cannot be negative.

物距、像距与焦距都是距离，故也不可能为负数。

Focal length is the distance between optical centre and principal focus.

焦距就是镜片中心和焦点之间的距离.

Figure 4. Relationship Between Focal Length, FOV, Sensor Size, and Working Distance.

图4. 焦距, 视野FOV, 感应器大小, 和工作距离间之关系.

depth of objects in the images, i.e. the actual distance between the object and the focal plane, is really apperceived with imaging technology.

图像深度即图片上某点对应的真实物体在空间上到该图片物理成像焦平面的实际距离。

The selection of concave lens in focal length measuring experiment by objective distance image distance method

物距-像距法测凹透镜焦距实验中透镜的选择