光束

By employing the pole-null representation, we demonstrate that the lateral shift is closely related to the null of the reflection function.

利应用极点-零点描述理论，我们发现光束的位移与光束在该结构中的反射系数函数的零点密切相关。

For the requirement of high efficiency light emitting diode luminaries and the characteristics of automotive headlamp exit beam,based on non-imaging optical theory,a theory model for new type LED parabolic reflector optimal design is established to maximize the utilization of light energy of the reflection cup and to realize the asymmetric light intensity distribution of the headlamp exit beam.

针对当前发光二极管灯具的高效率要求和汽车前照灯出射光束特点，根据非成像光学理论建立了新型LED抛物反射器优化设计的理论模型，实现了反射杯光能利用率的最大化和前灯出射光束的不对称光强分布，进而依据该模型设计了新型反射式LED汽车前照灯光学系统。

Based on the classical theory of electromagnetism, the relation and the difference between OAM and the parameter of the beam in paraxial approximation are analyzed.

从经典电磁场理论出发，主要介绍了傍轴近似条件下，光束的轨道角动量和光束的参数之间的关系。

Is an expansion of paraxial optics that provides a more accurate model of coherent radiation like

高斯光束|高斯光束传播是近轴光学的扩展，它可以更为精确地描述相干传播

From the aspects of optical path structure, component design and optic-electric signal processing, the integrated measurement is realized.

分析了三种测量方法的共同性，指出它们在光源光束的发射、光束的传播途径即光路、光电信号的接收转换和处理上都有共同之处，为实现三种功能的集成打下了基础。

In 3800 Printing Subsystem, a device that emits a beam of coherent light that forms the image on the photoconductor that is subsequently transferred to the paper.

在IBM 3800打印子系统中，一种发出相干光束的设备，发出的光束在光电导体上形成图象，继而被传送到打印纸上。

Infrared beams of the highest efficiency is LED, also with photoelectricity triode in the spectrum of the match.

红外光LED是效率最高的光束，同时也是在光谱上与光电三极管最匹配的光束。

Advanced optical technology and high speed scanning animation technology, long life-span, low power consumption; showing graphics with the function of rotating, zooming, rolling, moving, 3D animation effect, stroboscopic action; can write word, picture, animation graphic, beam performance, and unique laser beam advertisement.

先进光控技术和高精度振镜扫描动画技术，寿命长、功耗低、图案具断笔、旋转、缩放、翻滚、移动、点渐绘、三维动画、频闪等效果、可做文字表演、动画表演、光束表演、激光广告等特有光束。

About a beam of light with frequency ,the energy of the photon is where is Planck s constant.

1905年爱因斯坦对光的本性提出了新的理论，他认为，光束可以看成是由微粒子构成的粒子流，这些粒子叫做光量子，以后就称为光子，在真空中，每个光子都以光速运动，对于频率为的光束，光子的能量为

The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.

本发明涉及全固体激光器的光泵浦系统，特别是一种盘式激光器的光泵浦系统。包括热沉1、激光晶体2、光纤3、平面反射镜4、第一凹面反射镜5、第二凹面反射镜6、第三凹面反射镜7，本发明采用平面反射镜位于光纤与第一凹面反射镜之间的结构，使LD和激光腔位于本发明激光晶体的同一侧，从而减小了激光器的封装尺寸；本发明将平面反射镜固定在热沉上，使泵浦光束斜入射角减小，泵浦光则能充分吸收，为此，本发明解决背景技术采用第一凹面反射镜使泵浦光束斜入射角过大引起的像散，泵浦光斑变形引起泵浦效率降低问题，使得本发明可选用大面积半导体制冷器，避免使用水冷，则激光器的体积大大减少，有利于产品的全固化，保证了激光晶体的散热要求。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。