Hybrid FDTD-PWS method for focal field analysis of lens antenna at millimeter-wave band;
FDTD-PWS法用于分析毫米波透镜天线焦面场
A millimeter-wave meniscus lens antenna is designed in this paper.
设计了一个毫米波均匀介质新月形柱面透镜天线。
Main task of this dissertation is designing a multi-beam lens antenna to both improve the resolution and reduce the imaging time of the passive millimeter-wave imaging system.
本文的主要任务是针对提高毫米波无源成像系统的分辨率和减小成像时间而设计一个多波束透镜天线。
Constrained metal-plate lens antenna
约束金属板透镜天线
Analysis and Measurement of Spot Focusing Lens Antenna Resolution
点聚焦透镜天线分辨率的分析与测量
Design and Miniaturization of Waveguide Rotman Lens Antenna
波导型Rotman透镜天线的设计与小型化
metal-plate lens
(天线) 金属板透镜
metal(lic) delay lens
(天线)金属延迟透镜
Nowadays the light collected by the lens or mirror of a telescope is directed to a photographic plate rather than to the astronomer's eye.
被望远镜的透镜或反射镜所收集的光线，如今直接射到照相底板上，而不是天文学家的眼睛里。
meniscus astrograph
弯月形透镜天体摄影仪
A convex lens is used to concentrate rays of light.
凸透镜用于聚集光线。
Research on Improving Patch Antenna Directivity by Metamaterials Microwave Lens
新型人工电磁材料微波透镜增强贴片天线定向性的研究
Study of using the S structure flat metamaterial lens to enhance the properties of horn antenna
S型左手材料平板透镜对喇叭天线性能影响研究
radio binocle astro-telescope
无线电双目天文望远镜
With special lenses and prisms we can manipulate this light.
我们可以用特殊透镜和棱镜处理这种光线。
The paper derived a light equation for cone-lens.
本文推导了一个锥透镜的光线方程。
The light is slowed down as it goes through the lens.
当光线穿入透镜时，速度就减慢下来。
"A convex lens causes rays to converge on a single point, the focal point."
会聚透镜使光线会聚于一点,即焦点。
The side of a lens is curved. The middle part of some lenses is thicker than the edge. In other lenses, the edge is thicker than the middle part.
透镜的面是曲线型的，有些透镜的中间比边缘厚，有一些透镜的边缘比中间厚。
The lens or lens system in a microscope or other optical instrument that first receives light rays from the object and forms the image.
物镜首先从物体上接收光线并形成影像的显微镜或其它光学仪器中的透镜或透镜系统
Objective: An objective is a system of one or more pieces of lenses grouped together. It refracts light and can form an image. Alternatively known as Lens.
镜头:镜头是一片或多片透镜的组合。它折射光线而形成影像。