Focusing properties of Gaussian beams passing through a bifocal lens;
高斯光束通过双焦透镜的聚焦特性
: the mode TEM 11 、TEM 12 (or TEM 21 )、TEM 22 of Hermitian Gauss beams and the mode TEM 10 、TEM 11 of Laguerre Gauss beams) propagate through a focusing optical system (for example: a pair of lens focusing system), are obtainable on the basis of Huygens Fresnel principle and Sampling theory and by programming , calculating, and making use of Graftool.
以惠更斯 -菲涅尔原理和取样理论为基础 ,利用计算机编程计算和绘图软件 Graftool得到高阶模激光束 (如厄米 -高斯光束 TEM1 1 、TEM1 2 (或 TEM2 1 )、TEM2 2 和拉盖尔 -高斯光束 TEM1 0 、TEM1 1 )经过会聚光学系统 (以双透镜聚焦系统为例 )传播后的聚焦曲线 (r- z)。
Propagation properties of partially polarized,partially coherent vectorial cosh-Gaussian beams through bifocal lens
部分相干部分偏振矢量双曲余弦-高斯光束通过双焦透镜的传输特性
flat-top plastic bifocal
平顶塑料双焦点透镜
variable focal length (cylindrical) lens
变焦(距)(圆柱)透镜
air-spaced doublet
双不胶透镜; 双分离透镜; 双分透镜; 空气隙双合透镜; 分离式双透镜
manual zoom lens
(镜头)手控可变焦距透镜
rear-controlled zoom lens
背面调整变焦距透镜
short focal length (high aperture) lens
短焦距(大孔径)透镜
Propagation Properties of Partially Coherent Flat-topped Beam Passing through Astigmatic Lens;
部分相干平顶光束经过双焦距薄透镜的传输特性研究
Shaped like a biconvex lens.
双凸透镜状的形状像双凸透镜的
Having the same focus or foci. Used of a lens.
共焦的有共同焦点的。用于透镜
Measurement of optical surface and foci of long focal length lens by CGH
计算全息法测量长焦透镜面形和焦距
He focuses the lens of a microscope.
他调整显微镜的透镜以定焦点。
The act or result of causing a lens to deviate from accurate focus.
散焦，去焦使透镜偏离准确的焦点的行为或结果
Just as a double convex lens enlarges, so a double concave lens reduces.
正象双凸透镜可以放大那样，双凹透镜也可以缩
Research on Focal Depth in the Experiment of Thin Lens' Focal Length Measurement
薄透镜焦距测量实验中焦深问题的研究
The focal length differs with the thickness of the lens
焦距长底随透镜的厚度而变化。
(physiology) the automatic adjustment in focal length of the lens of the eye.
（生理学）用眼的透镜来自动调节焦距。
To adjust(a lens, for example) to produce a clear image.
调焦调整(如透镜)而得到清晰图象