查询词典 focal distance

Conventional stereoscopic displays can cause viewers to experience eye fatigue and discomfort,as well as compromise image quality, because these displays require the viewers to unnaturally keep the eye focal length fixed at one distance while dynamically changing the convergence point of the left and right eyes to view objects at different distances.

传统的立体显示器需要观众人为地将眼睛的焦距固定在某一个距离，不断改变左、右眼收敛点来观察不同距离的物体，因此会造成眼疲劳和不适感，也降低了图像质量。

Based on this, the detecting distance for 122mm rocket using infrared focal plane array sensor within 3～5μm wave band and the precision of two infra red measuring system intersecting measurement are discuss...

在此基础上计算了利用3～ 5 μm红外焦平面探测器对 12 2mm火箭弹进行探测的作用距离，以及红外两站交汇测量系统对12 2mm火箭弹的交汇测量精度。

Based on this, the detecting distance for 122mm rocket using infrared focal plane array sensor within 3～5μm wave band and the precision of two infra red measuring system intersecting measurement are discussed.

在此基础上计算了利用3～5μm红外焦平面探测器对122mm火箭弹进行探测的作用距离，以及红外两站交汇测量系统对122mm火箭弹的交汇测量精度。

Finaly many experiments are completed in the lab in diffrient conditions , which contains illuminance of crack 、 contrast of image 、 distance of shotting and focal length, to review the accuracy of the new system and to analys the rule of th effection of the accuracy .

在论文的后阶段，设计了实验室中进行的两个层次的考核和标定试验，并对应用中必然遇到的物面光照度、图像对比度、测量距离和焦距的改变，对试验样本测量精度的规律作出了初步分析，为新方法的进一步完善提供了有价值的工作基础。

And the key technology is providing a proper simulated target. Play the LCD panel on the focal plane of the collimator,to display the real-time figure formed by the simulation software.With the light shining on the LCD panel,the collimator forms a simulated target with a infinite distance.

本课题研究主要内容是：提出了用计算机控制的数字仿真目标设计思想，以液晶光阀替代传统成像平行光管的分划板，并实时显示计算机生成的各种图形；在外光源的照射下，平行光管将液晶光阀显示的图形成像于无穷远，提供给被测光电跟踪测量设备。

Results ① Magnification increased within one focal length with an increase in distance from reading material to magnifier.

结果 ①阅读物从紧贴放大镜的位置开始，越接近放大镜一倍焦距的位置，其放大率越大。

Results ① Magnification increased within one focal length with an increase in distance from reading material to magnifier.

结果 ①阅读物从紧赔放大镜的位置开始，越接近放大镜一倍焦距的位置，其放大率越大。

The rotary connection can be carried out in free space and hi-direction transmission of optical signal can be performed. Through analyzing the design principle of the optical structure and optical path calculation, it is found that when the ratio between the focal lengths for two lens is 20~50 and off-axis distance is in the range of 4~10mm, the interference will not be occurred between two optical channels and signal transmission can be lasted.

在自由空间可以实现旋转连接并实现光信号的双向传输，通过分析该光学结构设计原理和光路计算，发现每组透镜中两个透镜焦距之比为20-50，离轴距离为4-10mm范围时，才能保证光通道之间不发生干扰且信号持续传输。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。