光反射

It is found that due to the interference between the multi-reflected beams inside the etalon,the transmitting pulse is composed of a series of sub-pulses which are separated by the one-way traverse time of the light inside the etalon.

由于光在标准具内多次反射所引起的干涉效应，发现输出的光脉冲包含了一连串的次脉冲，这些次脉冲的时间间隔等于光单次通过标准具的时间。

This thesis demonstrates the pre-polymers in a polymer-dispersed cholesteric liquid crystals can be polymerized into a polymer film, which can eliminate the aligning capability of the homogeneous alignment layer. Thereafter, the textures of the cholesteric liquid crystals in UV-cured region can be changed from reflective planar texture to the scattered focal conic one. Additionally, the clearing temperature of the liquid crystals can be reduced by doping with chiral dopant or monomers. The cause is the increase of the impurity concentration in LCs. In other words, if the monomers are polymerized, the clearing temperature of LCs in that region should increase due to the decrease of the impurity concentration. Therefore, impurities associated with doping with monomeric and chiral dopants cause the clearing temperature of LCs in cured region to differ from that in uncured region.

本文中，我们提出在高分子聚合物薄膜之胆固醇液晶(polymer-dispersed cholesteric liquid crystals，简称PDCLCs)中，利用紫外光使PDCLC中的单体聚合成薄膜，此即为光引致聚合反应，而该薄膜将原本在表面所作的配向膜覆盖且破坏其配向能力，使胆固醇液晶由原本反射的planar结构转换成散射的focal conic结构；另外，有关液晶材料的相变温度会由於掺杂手性分子或单体而降低，此因液晶材料内『杂质』浓度增加，而造成的液晶材料之不纯度增加，最终导致相变温度降低，若搭配上述光引致聚合反应，则由於光照区之单体聚合，使该区域单体占总材料之比例下降，即不纯度降低，进而使液晶材料之相变温度上升，该区域之相变温度与未照光区有所不同。

A beam splitter is mounted on the substrate on a center line between elongations of the optical fibers, and light emitted from the lens portion propagates through space and is launched in focused form into the beam splitter, and a portion of the incident light is reflected, which propagates space and is launched in focused form into the lens portion and propagates through the optical fiber.

分光器(31)安装在基底(11)上并位于光纤(21)和(22)延长线之间的中心线(25)上，从透镜部分(21a)发射的光穿过空间并以聚焦的形式入射到分光器(31)，一部分该入射光被反射，该光穿过空间并以聚焦的形式入射到透镜部分(22a)、并穿过光纤(22)传送。

A spatial distribution of diffuse reflectance produced by obliquely incident light is not centered about the point of light entry.

倾斜入射的光所产生的漫反射的空间分布，其中心与光的入射点存在一个偏差，这个偏差与组织的吸收系数和有效消光系数有直接的关系。

The increased interfacial roughness can enhance photocurrent and efficiency of the device.

表面粗糙度的增加将增强入射光在界面处的反射作用，增强入射光在激活层中的吸收，进而提高器件的光电流和转换效率。

Be a card-carrying member Take a photo gray card along: It ' s much better for setting digital " white " balance, for accurate spotmeter exposures with slide film, for a photofinishing reference point for color-print film, etc.

带块灰板：相机的测光系统认为，物体都是反射率为18％的灰色。其测光就是按这个进行的。所以，拍雪景的时候，如果不加曝光补偿，就会拍出来发灰。带着灰板，就能准确测光。

It also makes analysis on the connection of Newton's prism experiments, and describes how Newton proved these propositions by taking advantage of these experiments in the article. As well the author makes analysis and generalization on the make of Newton's reflecting telescope and Newton's

首先，在对《光学》认真研读的基础上，首次对其光的颜色理论部分的大量棱镜实验之间的关系进行了分析，从而说明牛顿是如何利用这些实验证明这些命题的；其次，笔者在前人研究的基础上，对反射望远镜的制造和牛顿环理论进行分析和总结，力求描述得清楚全面；最后，鉴于国内外对牛顿光本性认识的研究存在分歧的情况，笔者对惠更斯和牛顿的相关著作进行了详细考察，对他们的光本性观点进行了系统的研究和比较，从而指出那种只因牛顿

The blue color is caused not only by Rigel 's blue color but because the dust grains reflect blue light more efficiently than red.

星云中的蓝色不仅仅是由参宿七的蓝光形成的，还因为尘埃反射蓝光比红光更有效。

In addition, comparing with moving mirror system the rotating mirror system is of benefit to increase the mainipulating speed of an optical trap, simp lify the mechanism of an optical tweezers, reduce its cost, and shorten the cycle of completing an optical tweezers.

此外，比较分析表明，与平移反射镜系统相比，转镜系统在光镊技术中的应用可加快光镊操纵速度、简化光阱位置操纵系统的复杂程度、有利于系统开发成本的减少及开发周期的缩短。

This paper introduced algorithmic method of light distribution design with the help of light distribution calculation and illumination of test points. It gave the detail about Ray Tracing and point by point arithmetic, presented a design tactic of multi-surface reflector.

从计算光形分布和测试点的照度值两方面介绍了配光设计的计算方法，具体运用了光线追迹法和逐点计算法，并给出了用于近光灯的多曲面反射体的一种设计策略

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。