用费马原理推导了透镜的物像公式.
透镜的厚度和质量令人印象深刻。
首先我们需要找到透镜的焦点。
本文推导了一个锥透镜的光线方程。
本文还描述了制造菲涅耳透镜的方法。
我们对聚焦透镜的结构进行了优化设计。
介绍了一种制作非球面复合透镜的新方法。
A new method to fabricate aspherical compound lens was proposed.
文中还给出了纤维透镜的有效长度计算结果。
The effective lengths of fiber lens are also calculated here.
结合列阵透镜的透过率分析了其后的光场分布。
The distribution of optical field passing through lens array is analyzed.
塔顶的菲涅尔透镜。透镜的厚度和质量令人印象深刻。
Fresnel lens on the top. Thickness and quality of the glass are impressive.
使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。
Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.
当然还有很多问题需要解决，例如，怎样避免前端透镜的模糊和冻结？
Of course, there were a lot of problems that were necessary to solve. For example, how to deal with misting or freezing of a front lens?
又用磁场透镜，下面分别阐述两种电子透镜的构成和原理。
Use magnetic field lens again, two kinds of electron lens elaborate respectively below form and principle.
模拟计算结果对多阶菲涅耳透镜的制作提供重要的理论指导。
The results of computer simulation can provide theoretical basis for the fabrication of Fresnel lens.
电子透镜的作用与光学显微镜中的光学透镜的作用是一样的。
The role of electronic and optical microscope lens in the optical lens effect is the same.
菲涅耳透镜的衍射效率是评价菲涅耳透镜质量的一个重要指标。
Diffractive efficiency of Fresnel lens is important factor to evaluate the quality of Fresnel lens.
本文描述了菲涅耳照明透镜的设计原理、计算方法及参数选择。
The present article deals with the design principle, calculating method and selection of parameters.
图像写入装置，光源，光源单元，微透镜以及微透镜的制造方法。
Image load in device, light source, light source element, microlens and manufacturing method of microlens.
利用几何光学方法研究了由左手性介质制成的简单透镜的光学特性。
Unique optical properties of the simple lens composed of left-handed material (LHM) are reasonedly studied here according to Geometrical Optics.
眼镜都有一个光学中心，也就是说通过透镜的焦点看事物是最清晰的。
Glasses have what's called an optical center, which means that objects appear clearest when viewed through the center of the lenses.
如果不存在透镜的曲率误差，那么图象总是显示的屏幕中心的同一个位置。
So no lens bending error. The sensor Pixel is always the same and it is in the centre.
此外，M -GRIN将使GRIN透镜的设计制造超越现有的光学应用范围。
In addition, providing the tools for manufacturable GRIN optics will expand the reach of GRIN lens design and fabrication methods beyond current optics application space.
结果表明，在一般情况下，几何光学模型不能描述高斯光束经这种透镜的物像变换。
It is shown that the geometrical optics model can not be used to describe the object-image transformation of Gaussian beam through the lens under the general case.
在对液晶投影照明系统的原理进行分析的基础上，提出了两种复眼透镜的设计方案。
Two designs of the fly eye lenses are introduced on basis of the analysis on liquid crystal projection displays.
研究小组利用一种叫做引力微透镜的技术发现了十颗失控的行星。它们的平均质量与木星相似。
The team spotted ten runaway planets-with an average mass similar to Jupiter 's-using a technique called gravitational microlensing.
本文根据光线轨迹方程，讨论一种等折射率面为指数型变化的梯度折射率纤维透镜的成象特性。
The imaging characteristics of a GRIN fiber lens with exponential variation of the constant-index surfaces are discussed based on the ray paths equations.
但是X光射线图像本身也有自己的问题，比如X光射线难于聚焦，甚至在使用矫正透镜的情况下也难于控制。
But X-ray imaging has its own problems, with X-rays difficult to focus or manipulate even with corrective lenses.
第四部分对球透镜的制备工艺进行研究，包括槽沉法制备球透镜、球透镜的抛光和基本性能测试。
In the fourth part, the researches of preparation technology are proceeded, including fabricating ball lenses using sagging method, polishing of ball lenses and basic performance measurement.
第四部分对球透镜的制备工艺进行研究，包括槽沉法制备球透镜、球透镜的抛光和基本性能测试。
In the fourth part, the researches of preparation technology are proceeded, including fabricating ball lenses using sagging method, polishing of ball lenses and basic performance measurement.
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