Unstable Bessel Optical Resonator with an Axicon
带圆锥透镜的非稳贝塞尔光学谐振腔
Geometric optics is used to analyze the influence on beam transmission as circular symmetry manufacture error exists on an axicon.
用几何光学分析了圆锥透镜的锥面存在圆对称加工误差时 ,对光束传输变换的影响 ;用衍射理论及稳相法分析了锥面的非圆对称加工误差及横截面由圆变为椭圆时 ,其后衍射光场的变化情况 。
AbstractIn the paper, an annular focus system of laser, combined by a convergent spherical lens and two axicons, one divergent and the other convergent, is proposed.
本文首次计算了由会聚球面透镜、发散圆锥透镜和会聚圆锥透镜形成的激光环形聚焦光斑的光强分布、特征宽度和光能量集中分布,所得到的光场分布表达式很适合于进行数值计算。
Since the central spot diameter of exit beam generated by the spherical wave beam passing through a conical lens is small and the focal depth of the exit beam is long,it is suitable for long distance measurement and alignment in laser communication.
球面波入射圆锥透镜产生的出射光束中心光斑直径较小且焦深长,适合通讯领域长距离测量和准直。
Unstable Bessel Optical Resonator with an Axicon
带圆锥透镜的非稳贝塞尔光学谐振腔
Variable-focus liquid lens with suspended conical ring
带有悬浮锥形圆环的液体变焦透镜(英文)
Objective To discover the mechanisms of keratoconus by observing the ultrastructure of keratoconus with light microscopy and transmission electron microscopy.
目的 观察圆锥角膜在光镜及透射电镜下的超微结构,试图了解圆锥角膜的发病机制。
Experimental Investigation on Conical Horn Excited by an Azimuthally Symmetric Mode with Plate Lens
轴对称模激励的加平行板透镜圆锥喇叭实验研究
Study of Earlier Diagnosis and Rigid Gas Permable Contact Lenses Correction in Keratoconus;
圆锥角膜的早期诊断和透气性硬性角膜接触镜矫正治疗研究
Clinical Study on Rigid Gas Permeable Contact Lenses Correction for Keratoconus;
透气性硬性角膜接触镜对圆锥角膜屈光重建作用的研究
Study on rigid gas permeable contact lenses for keratoconus astigmatism correction
硬性透气性接触镜对角膜散光和圆锥角膜矫正分析
Long term efficacy of rigid gas permeable contact lens wearing in keratoconus
配戴透气性硬性角膜接触镜矫正圆锥角膜的远期效果
variable focal length (cylindrical) lens
变焦(距)(圆柱)透镜
Test bench design for light transmittance of conical surfaced windshield glass
圆锥曲面风挡玻璃透光率检测台设计
The paper derived a light equation for cone-lens.
本文推导了一个锥透镜的光线方程。
The Beam Propagation and Transformation in Axicon-Lens System
轴棱锥——透镜系统的光束传输与变换
Corner-cube Mirror and Right-angle-cone Mirror Cavity Lasers;
角隅和直角内圆锥面全反镜激光谐振腔
Propagation of Gaussian beam through a negative axicon and its propagation properties;
高斯光束通过负圆锥棱镜光学系统的传输特性
Formation of freshwater lens in islands and evolution rules of the upconing
海岛淡水透镜体形成及倒锥演变规律分析
A lens is a round piece of glass, but it is not flat.
透镜是一个圆形玻璃片，但不是平的。
This setup, known as a conoscope, is shown in Figure 14.2 and consists of two stress-free plano-convex lenses A and B.
此装置称为锥光镜，如图14．2所示，它由A和B两个无应力平凸透镜组成。
Orbscan Ⅱ United Confocal Microscope in the Diagnosis of Keratoconus at an Early Stage
OrbscanⅡ联合共焦显微镜在早期圆锥角膜中的诊断价值