1·Fresnel lens on the top. Thickness and quality of the glass are impressive.
塔顶的菲涅尔透镜。透镜的厚度和质量令人印象深刻。
2·Fresnel lens on the top.
塔顶的菲涅尔透镜。
3·Dr Yabe's trick is to use relatively small Fresnel lenses-transparent and relatively thin planar lenses made up of concentric rings of prisms.
Yabe博士的诀窍是使用比较小的菲涅尔透镜——棱镜同心环构成的透明较薄的平面透镜。
4·At last the light intensity distribution of Fresnel diffraction at several rectangular apertures is calculated and analyzed.
最后计算分析了多矩孔菲涅尔衍射的光强分布。
5·But Dr Koechlin does not worry about that, because his Fresnel telescope will be in space.
然而，凯什兰博士并不为此担心，因为他的菲涅尔望远镜将会在太空中。
1·A method of making the Fresnel lens is described.
本文还描述了制造菲涅耳透镜的方法。
2·Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.
使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。
3·Topics covered in wave optics include: basic electrodynamics, polarization, interference, wave-guiding, Fresnel and Fraunhofer diffraction, image formation, resolution, space-bandwidth product.
涵盖的主题包括：在波动光学基本电动力学，极化，干扰，波导，菲涅耳和夫琅和费衍射，成像，分辨率，空间带宽产品。
4·Concept art showcased "Fresnel" type designs, with layered crystalline filaments suggesting old-style electronics.
概念画展示出种种“菲涅耳”式的设计，层层叠叠的水晶丝令人联想到旧式的电子产品。
5·Intensity space distribution near image point of optical system is derived based on the accurate amplitude (therefore the intensity) analytic expression for Fresnel diffraction.
根据准确的菲涅耳衍射振幅和光强解析表达式推导出光学系统像点附近的光强空间分布。