Pattern characteristics of collimated laser beam in a turbulent atmosphere I.
湍流大气中准直激光束的光斑特征I。
Pattern characteristics of collimated laser beam in a turbulent atmosphere Ⅰ.
饶瑞中。湍流大气中准直激光的光斑特征Ⅰ。
Pattern characteristics of collimated laser beam in a turbulent atmosphere II.
湍流大气中准直激光束的光斑特征II.Strehl比与锐度。
In order to achieve a remote measurement, the laser beam is first collimated, and directed to the detector array, which is attached to the object to be measured.
其基本原理为：采用激光水准仪作为光源，激光光束首先经过校准，然后聚焦在固定于被测物体上的测量系统上来实现远距离精确测量。
Dynamic modulation of laser and laser bean, and offset to target reflection coefficient: laser bean is shaped and collimated to round and slender beam by using of the semiconductor laser.
激光器件及激光束的动态调制，目标反射系数补偿：采用半导体激光器，经过整形、准直成圆细光束。
After collimated and broadened, the semiconductor laser beam is exposured on the wedge-shaped plate.
利用半导体激光器发出的激光，经准直扩束后照射到楔形平板上；
To collimate the beam of 5 mW laser diode, an optic system including two groups and three pieces of lens is desinged by PW method and ODP_2 optic design software. The beam can be collimated satisfactory because the aberration is much little.
运用光学设计的PW方法，使用ODP2光学设计软件，设计了两组三片式组合透镜构成的光束准直系统，经过象差检验，准直效果好。
In the emitting system, since the beam waist of the laser is small, and therefore, when the laser is used as the detecting laser, the light beam requires collimated beam expander.
在发射系统中，由于激光器的束腰过小，因此当激光器作为检测激光时就需要准直扩束。
A laser diode with pigtail is used as the light source. The output beam is collimated by a GRIN and the diameter of collimated beam is 0.5 mm.
该方法的测量装置采用带尾纤的半导体激光作为光源，由自聚焦透镜准直，出射光束直径为0.5mm，使探测头为小光斑。
Rao R Z. Pattern characteristics of collimated laser beam in a turbulent atmosphere II.
饶瑞中。湍流大气中准直激光束的光斑特征II。
Collimated laser beam parallel beam stress meter
激光平行光束，平行激光束
The optical system mainly consists of the collimated laser beam expander optical system and the filter projection optical system.
本光学系统主要由激光扩束准直系统和滤波投影系统组成。
The effect of the deviation between the center of collimated laser beam and the center of the phase plane on the diffraction pattern is investigated and simulated.
分析了准直激光束照明条件下，相位板中心偏离准直光束中心对衍射图样的影响，并给出了数值仿真结果；
Research on Calibration Method of Collimated Laser Beam
准直光束校准方法的研究
Optical parameters of tissue was reconstructed by Genetic Algorithm and Monte Carlo method according to the multiple scattering photon distribution, which emerged when a collimated laser beam normally incident upon and propagated through the tissue.
本文利用遗传算法（GeneticAlgorithm）和蒙特卡罗（MonteCarlo）方法研究由准直激光束通过均匀生物组织时所形成的多重散射光分布重构生物组织的光学特性参数。
The success of laser cooling makes atom lithography easy to obtain well collimated atomic beam. Because of that collimated atomic beam is a good method among laser spectroscopy, atomic beam laser induced fluorescence (LIF) can be used for the laser frequency stabilization in atom lithography.
在铬原子光刻中可采用铬原子束激光感生荧光（LIF）来实现激光频率的稳定，以满足原子光刻对激光频率稳定性的要求。
Study of Underwater Spot Spread of Collimated Laser Beam
准直激光束水下光斑的变化规律研究
The transmission properties of collimating lenses for semiconductor laser beams are analysed and the main factors to influence the beam quality of the collimated semiconductor laser beam are discussed. The highly collimated semiconductor laser beams are obtained by using the small aperture lenses with large numerical aperture.
分析了半导体激光器光波经准直透镜的传输特性，对影响准直光束质量的主要因素作了深入讨论，并在实验上利用小口径大数值孔径透镜获得了高准直度的光束。
Methods: The patients undergoing radiotherapy were postured and the agreement of laser beam mark line before radiotherapy and collimated laser beam line were analyzed.
方法：摆完治疗体位放射治疗前，测量治疗室激光定位线与定位时激光线标记的吻合度。