查询词典 vignetting

It is only to be used at the longest telephoto setting of the camera in order to avoid vignetting.

只有将在最长的长焦相机的设置使用，以避免晕。

A difference emerges with the fact that the IOR shows some vignetting, which is not there in the DF. The reason is that the DF employs larger prisms, which enable it to fully illuminate the 60 degs. field of view.

不同之处是IOR表现某些渐晕，DF没这现象，原因是DF拥有更大的棱镜，能完全照亮60度视场，另一方面，DF更大更重。

2According to requirement of suppressing stray light in two-mirror system, vertex coordinate formulas of inner baffle are deduced based on geometrograph in the case of certain obscuration, viewing field and vignetting. In order to reduce the obscuration, conical baffle of secondary mirror is ameliorated into a shutter one. Outer baffle is designed when angle of stray light suppressing is foregone and the vanes are designed in C-language program. Finally, the same-height vanes in drawtube between primary and secondary mirrors are designed for further suppressing the stray light in two-mirror system.

给出双反射系统杂散光消除设计的具体要求，结合作图法，推导出考虑视场大小及初始中心遮光比确定时，主次镜内遮光罩顶点坐标公式；讨论考虑渐晕时主次镜内遮光罩的设计；为了减小初始中心遮光比，将次镜锥状遮光罩改进为百叶窗式结构；设计在杂散光源抑制角已知时的外遮光罩，并利用C语言实现程序化设计其挡光环的方法；设计主、次镜间镜筒内壁上等高挡光环，进一步抑制双反射系统的杂散光。

In this paper, the research on vignetting is done and a formula for vignetting about field angle、entrance window, entrance pupil and the distance between them is deduced.

文中对渐晕做了一些研究，并推导出一个渐晕关于视场角、入瞳、入射窗以及两者之间距离的解析式。

Example3:Exposure control:film speed Exposure: on, Shutter Speed (s^-1): 60.0, f-number: 8.0, Vignetting: on, White balance: white

这项参数决定了图像对光的灵敏性-感光度。如果胶片速度值较高那么图像将会对光线更为敏感，图像也就越亮。

Example8: White balance Exposure: on, f-number: 8.0, Shutter Speed (s^-1): 200.0, ISO: 200.0, Vignetting: on

举个例子：在日光场景中可以使用桃红色来校正阳光的颜色。

The program uses a process that involves the taking of a second picture using a bright background with the same lens, filters and hood that caused the initial vignetting effect.

该软件使用一个采用了使用相同镜头，滤镜和遮罩导致原始虚光效果的正确背景的第二张图片覆盖的处理过程。

Due to the problem that the relative parameters of aviatic sensing image are often difficult to get, A line scan and data fitting method was presented in order to obtain whole gray change in image, and then to correct image vignetting phenomenon.

针对航空遥感影像在拍摄过程中相关参数不易获取的问题，提出了利用逐行扫描及数据拟合的方法来获取影像整体灰度变化情况，从而实现影像渐晕现象的复原。

Considering the particularity of bar code scanning system, a new method to analyze the intrinsic vignetting effect of retroreflective collection system with the help of computer graphics is proposed and has been used to optimize the optical system configuration.

为了得到尽可能高的信噪比，提出采用回向接收方案来限制接收系统的瞬时视场。针对条码扫描系统的特点，提出了一种利用计算机交互技术和图形技术来分析此回向接收系统渐晕特性的新方法。

Neither distortions nor vignetting are real problems in field conditions.

无论是变形失真还是 VIGNETTING ，户外使用都没有问题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。