Convergent Beam Propagation in Simulative Cylindrical Bio-tissue;
会聚光在柱状模拟生物组织中的实验研究
For detecting wavefronts from the system with long optical path or multi-component lens with one by one aligning,the phase-shifting lateral shearing interferometry of convergent beam with the convergent beam as light source for interferometry is proposed,which is based on Michelson interferometer.
为了检测长光程情况或多组分光学镜头逐片装校中的波面,提出一种以会聚光波直接作为干涉测试光源的会聚光移相剪切干涉方法,阐述了基于迈克耳孙干涉仪原理的会聚光横向剪切干涉光路,建立了会聚光横向剪切波面的数学表达式,并与一般横向剪切干涉相比较,分析了剪切量和波面偏移量的特征,且引入移相干涉技术求取剪切波面。
Effects of Turbulence Aberration on the Focal Beam and Photon's Orbital Angular Momentum in the Atmospheric Optical Communication
湍流像差对大气通信会聚光束和光子轨道角动量的影响
"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。
In this case the rays obviously do not converge.
此时，光线显然不会聚。
When viewed using a bright lamp, the beams of light can be seen as spectra of colors.
在明亮的聚光灯光源下，光束会还原为光谱色彩。
focused light rays can set something afire.
聚焦的光线会让东西烧起来。
"Intellectual Elite under Spotlight" and Consumer Society;
“聚光灯下的知识精英”与消费社会
condenser aperture
聚光镜孔径;聚光镜孔径;聚光器孔径;聚光器孔
The friends met now and then to chat about the good old days at school.
朋友们偶尔聚会，畅谈学生时代的美好时光。
However, dating under the spotlight rarely leads to long-lasting love.
但这种聚光灯下的约会难以产生持久的爱情。
About the Teaching of the Convergence and the Divergence of Rays with the Optical Instruments in a Junior Middle School;
谈 (初中 )光学仪器对光线的会聚作用与发散作用的教学
The relation is discussed between the shift of the point of maximum intensity on axis from the waist of focused Gaussian beam and the radius of the diffracted aperture, and the parameters of the Gaussian beam.
讨论了轴上点光强最大值相对会聚高斯光束束腰的偏移量同衍射孔径及高斯光束参数的关系。
Spot/Directional Light
目标聚光灯/平行光
fibre optic conical condenser
纤维光学锥形聚光器
optical transmission and self-focusing fiber
光传输和自聚焦光纤
Spot/Directional Light Vie
目标聚光灯/平行光视图
This calls for the lasers to be very finely tuned and the fuel pellet to be perfectly smooth, so that the implosion is symmetrical and fusion occurs.
这需要精确调节激光，燃料球必须光滑，这样内爆才会对称，聚变才会发生。
a reunion dinner, celebration
重聚宴会、 庆祝会.
Franklin Roosevelt listened with bright-eyed smiling attention.
弗兰克林·斯福目光炯炯，面带笑容，聚精会神地听著。