准直透镜

For the radius measurement the autocollimator with converter objective is used.

曲率半径的测量使用带转换透镜的自准直仪。

With the computer simulation,the elliptic section cylinder lenses have been designed and used to collimate the semi-conductor laser beam .

利用计算机仿真，设计了相互垂直的椭圆截面柱透镜组来准直半导体激光束。

They collimate a semiconductor laser beam in two directions respectively .

采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。

By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam.

采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。

Heteroaxial double half-cylindrical lens collimate beam of laser diode ［J］.

异轴双半圆柱透镜准直半导体激光光束［J］。

Double half-cylindrical lens collimate the beam of laser diode .

双半圆柱透镜准直半导体激光光束。

The results indicated that good wavelength stabilization could be obtained when a collimating cylindrical lens with diameter of 0.4 mm was used.

研究表明，在相同的工作电流、热汇温度下，当准直柱透镜直径为0.4 mm时的波长稳定效果较好；在此情况下，当热汇温度控制在30 ℃，工作电流从0.5 A增加到1.5 A的测量范围内，以及当工作电流固定在1.5 A，热汇温度从20 ℃增加到35 ℃时，测得的光谱特性表明，半导体激光器的工作波长可以很好地稳定在体布拉格光栅的布拉格波长处。

In the present paper we introduce the self-collimation method to measure the geometric parameters of solid immersion lens.

本文介绍一种测量固体浸没透镜几何参数的自准直方法。

In the third chapter, the study of fabrication technique of microlens is given to show the fabrication method and precision of the collimation system.

然后在第三章对微透镜的制作工艺进行研究，以明确准直系统的加工方法与加工精度。

In this paper, we proposed a new method of coupling in terms of the request of the intersatellite optical communication system. Using an aspherical cylindrical lens whose front cylindrical lens is orthonormal to its back cylindrical lens collimates the laser beam, and then is focused by a GRIN lens and couples to the single-mode fiber.

针对星间光通信系统的要求，本文采用一种新型的半导体激光耦合方案，用前后正交的非球面柱面透镜准直半导体激光束，再经渐变折射率自聚焦透镜聚焦耦合入单模光纤。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。