查询词典 Lens

By using Zernike polynomials to describe the wavefront distortion of beams, the propagation properties of the flattened Gaussian beams, super Gaussian beams, Gaussian beams and plane waves passing through an aberrated lens or an aberrated annular lens are studied based on the generalized Huygens-Fresnel diffraction integral.

以广义惠更斯—菲涅尔衍射理论为基础，采用Zernike多项式描述像差光束畸变波前相位，研究了平顶高斯光束、超高斯光束、高斯光束以及平面波通过像差透镜和环状像差透镜的传输。

Finally, we use Cooke Triplet and Double Gauss to be our design models. The negative index lens and traditional lens are compared in the geometric optics.

最后利用两组透镜组Cooke Triplet与Double Gauss 作为设计蓝图，把负折射率透镜与一般的传统透镜作为几何光学上的比较。

And a standard hyperhemisphere immersion lens with high refractive index is put behind the object lens to satisfy the receiving of a detector with smaller photosensitive surface.

弯月型负透镜在前，具有平衡像差和棱镜的偏向作用；物镜后放置高折射率标准超半球型浸没透镜，满足小光敏面探测器接收。

Three-dimensional optical data storage is achieved in PMMA and fused silica by combining 800nm, 150fs laser pulses with NA=0.55 objective lens and solid immersion lens.

其中，在石英介质内部存储密度可达1.1×10~(12)bits/cm~3，该结果为目前所报道在透明介质内所获得的最高存储密度。

The activities of glutathione peroxidase, superoxide dismutase, catalase, the content of malonaldehyde in serum and lens were detected. At the same time, the activities of Na+-K+-ATPase, the content of macromolecular weight protein and infusibility protein in lens were detected too.

比色法测定各组血清及晶体中超氧化物歧化酶、谷胱甘肽过氧化物酶、过氧化氢酶活力和丙二醛含量以及晶体中Na+-K+-ATP酶活力、高分子质量蛋白和不溶性蛋白含量。

The formula group for the design of multi-phase micro Fresnel lens according to scalar diffraction theory was given and the transmission theory of spherical wave were used to deduce the relation of focal distance of the micro lens with spectrum resolution. According to the relation spectrum resolution is inverse proportional to focal distance given a certain incident wavelength and phase number, and the theoretic formula is consistent with reported experimental result.

光谱分辨率是评价衍射微透镜分光特性的主要指标，根据标量衍射理论，给出了多台阶位相型菲涅尔透镜的设计公式，并利用球面波的传输理论推导了微透镜主焦距与光谱分辨率之间的函数关系，得出在入射波长和位相台阶数一定的情况下，光谱分辨率与中心焦距之间呈反比；理论推导的结果与已发表的实验结果一致。

The patients underwent micro-trauma technique suture,optical iridectomy,extraction of anterior segment foreign bodies,nepheloid lens removal,and artificial lens implantation.

患者于局麻下进行急诊手术，分别行伤口显微缝合、虹膜复位瞳孔成形术、眼前段异物取出、浑浊晶状体摘出及人工晶状体植入术。

Comes with a convenient lens cap lanyard to prevent you from losing the lens cap.

带有一个方便的镜头盖挂绳，以防止你失去了镜头盖。

Firstly,to abtain the parameters of coupling system,such as the focal length and the position of the lens,computing the Gaussian lens formula,then establishing the rectangular coordinate system and constructing equation and tracing the marginal ray to compute the parameter of the radius of the image beam waist.

首先使用高斯光束的透镜变换公式计算透镜的焦距及放置位置等耦合系统的参数，然后建立直角坐标系并利用耦合系统的参数构建方程，对边缘光线追迹，计算出像方束腰半径值。

A skew of an optical pickup device can be adjusted by a movable-side member itself which holds thereon an objective lens, A holder which holds an objective lens is supported by four spring wires such that it can be moved in the focusing direction and the tracking direction of an optical disk.

光学摄像管设备的偏移可通过一其上固定有一物镜的可移动侧部元件自身来调节。一固定一物镜的固定件由四个弹簧钢丝支承，因而它能在光盘的聚焦方向和跟踪方向移动。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了