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- Fresnel lens magnifier 菲涅耳放大镜
- Analyois of Fresnel lens transmissivity and research of design[J]. 引用该论文 陈杰;李湘宁;叶宏伟.
- Imaging characteristic of Fresnel lens for parallel incident rays is analyzed by ray tracing and experiments. 利用光线追迹与实验的方法，对菲涅耳透镜在平行光照明时的成像特性进行了分析。
- HD100-B1 LED lantern is composed of plastic Fresnel lens,super-bright LEDs,flasher,sunswitch and alloy aluminum case. B1 LED航标灯由塑料菲涅耳透镜、超高亮LED、闪光器、日光开关和铸铝合金外壳组成。
- HD160-B1 LED Lantern is composed of acrylic Fresnel lens, super-high-intensity LED, flasher, sunswitch and cast alloy aluminum case. HD160-B1 LED 航标灯由丙烯酸塑料菲涅耳透镜、超高亮LED、闪光器、日光开关和铸铝合金外壳组成。
- HD160-B1 LED Lantern is composed of acrylic Fresnel lens ,super-high-intensity LED ,flasher,sunswitch and cast alloy aluminum case. B1 LED航标灯由丙烯酸塑料菲涅耳透镜、超高亮LED、闪光器，日光开关和铸铝合金外壳组成。
- Based on the theory of scalar diffraction and on the Fourier optics, a formula of the diffractive efficiency with alignment error for the 4 step Fresnel lens is obtained. 摘要基于标量衍射理论，在傅立叶光学的基础上，首先得出存在对准误差情况下4台阶菲涅耳透镜衍射效率的解析式；
- The light efficiency and irradiance uniformity of Fresnel lens sheet and semi-circular diffuser sheet which composed of diffuser and prism function are also discussed here. 并结合扩散板与稜镜片功能，设计一菲涅尔透镜与半圆灯罩式扩散片，取代传统扩散板，讨论其光使用效率与光均匀性。
- A kind of diffraction element modulating phase information by LC space light modulator to get a zoom fresnel lens, as well as the using of said element to optical imaging system, is introduced. 本文介绍一种以液晶空间光调制器作为调制位相信息的衍射元件,获得可变焦长的菲涅耳透镜,以及该元件在光学成像系统中的应用。
- A refracting panel consisting of one or more, usually cylindrical, fresnel lenses. 由一个或多个圆柱形菲涅尔透镜组成的折射系统。
- Fresnel lens fabricated by ion beam etching 离子束刻蚀法制作菲涅耳透镜
- Effect of Surface Reflection on Fresnel Lens 表面反射对菲涅耳透镜的影响
- Field Fresnel Lens Optical Platform 野战弗雷斯内尔透镜光学平台
- Fresnel Lens Optical Landing System 费雷斯内尔透镜光学着陆系统
- Fleet Fresnel Lens Optical Practice 飞机弗雷斯内尔透镜光学系统引导着舰实习
- Portable Fresnel Lens Optical Landing System 轻便型菲涅耳透镜光学着陆系统
- Keywords Zoom Flash;Fresnel Lens;Design; 变焦闪光灯;菲涅尔透镜;设计;
- Plus lenses can to bringing objects into focus，but also magnify. Plus lenses magnify and minus lenses minify. 正透镜除了可以使光线聚焦以外，还附有使影像放大的作用。正透镜可以放大，负透镜可以缩小。
- a lens magnifying 2, 000 diameters 能放大二千倍的透镜
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
