1.
Research in the Algorithms of Depth from Defocusing Based on Image Processing;
基于图像处理的离焦测距算法的研究
2.
Focus-to-film distance(f.f.d)
焦点-胶片距离(焦距)
3.
Focal length: The distance between the centre of a lens and its principal focus.
焦距:镜头中心与其主焦点的距离。
4.
back focal distance
【光】后焦距﹝指镜头与菲林间的距离﹞
5.
coincidence range finder
复合焦点测距仪，叠象测距仪
6.
distance correcting mechanism of range-finder
测距仪距离校正机构
7.
short-range electronic distance meter
短距离电磁波测距仪
8.
The flatter the ellipse, the farther apart are the foci, and the farther each focus is from the center .
椭圆越扁平，两焦点之间的距离越远，每个焦点离中心的距离也越远。
9.
Measurement of optical surface and foci of long focal length lens by CGH
计算全息法测量长焦透镜面形和焦距
10.
marine distance meter
测角定距仪近距离)测距仪的一种
11.
macro teleconverter
增距式微距附加镜﹝使标准镜头变成微距而保留最近封焦距离﹞
12.
Discussion about Off-Focus Influence on MTF for Long Focus Aerial Camera
长焦距航天遥感相机离焦对传递函数的影响
13.
There are three types of focusing - guesstimate, rangefinder and autofocus .
有三种对焦方式-猜估，用测距仪及自动对焦。
14.
There're three types of focusing guesstimate, rangefinder and autofocus.
有三种对焦方式——猜估，用测距仪及自动对焦。
15.
There are three types of focus- guesstimate, rangefinder and autofocus.
有三种对焦方式??猜估，用测距仪及自动对焦。
16.
Research on Focal Depth in the Experiment of Thin Lens' Focal Length Measurement
薄透镜焦距测量实验中焦深问题的研究
17.
Measurement for the Long Focus Length of Lens by Images of Moire Fringes
利用莫尔条纹的计算机图象测量长焦距透镜焦距
18.
simulated optical range tester
模拟光学距离测试器