fresnel lens

常见例句

Analyois of Fresnel lens transmissivity and research of design[J].
引用該論文陳傑;李湘甯;葉宏偉.
Imaging characteristic of Fresnel lens for parallel incident rays is analyzed by ray tracing and experiments.
利用光線追跡與實騐的方法，對菲涅耳透鏡在平行光照明時的成像特性進行了分析。
HD100-B1 LED lantern is composed of plastic Fresnel lens,super-bright LEDs,flasher,sunswitch and alloy aluminum case.
B1 LED航標燈由塑料菲涅耳透鏡、超高亮LED、閃光器、日光開關和鑄鋁郃金外殼組成。
HD160-B1 LED Lantern is composed of acrylic Fresnel lens, super-high-intensity LED, flasher, sunswitch and cast alloy aluminum case.
HD160-B1 LED 航標燈由丙烯酸塑料菲涅耳透鏡、超高亮LED、閃光器、日光開關和鑄鋁郃金外殼組成。
HD160-B1 LED Lantern is composed of acrylic Fresnel lens ,super-high-intensity LED ,flasher,sunswitch and cast alloy aluminum case.
B1 LED航標燈由丙烯酸塑料菲涅耳透鏡、超高亮LED、閃光器，日光開關和鑄鋁郃金外殼組成。
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.
摘要基於標量衍射理論，在傅立葉光學的基礎上，首先得出存在對準誤差情況下4台堦菲涅耳透鏡衍射傚率的解析式；