查询词典 optical density

The invention discloses an optical differentiator based on a silicon-based annular cavity resonator, which belongs to the field of optical fiber communication technology.

一种基于硅基环形谐振腔的光微分器，属于光纤通信技术领域。

The process and conditions of cesium atomic fountain were introduced with detailed discussion of the influence of the optical component on fountain optical system.

介绍了实现铯原子喷泉的过程及条件，并详细讨论了光路中各种光学元件对铯原子喷泉光学系统性能的影响。

A general calculating method of optical character of optical thin films,namely characteristic matrix method is stated concisely.

胡君简要的叙述了光学薄膜光学特性的通用计算方法，即特征矩阵法。

The design process of the passive optical athermalisation was elaborated by an example. The result was analyzed with an optical design software. It shows that the design result meets the requirement of eliminating the thermal difference and chromatism at the temperature range of -40℃～+60℃.

最后用实例说明光学被动式无热化设计的求解过程，并通过光学设计软件对结果进行分析，说明该设计结果在-40℃～+60℃温度范围内均满足消热差和像差要求。

In order to spot color business card printing and membership card making to distinguish, common to the natural color of the pattern where digital technology by optical or color separations of restore printing are referred to as the primary color business card printing and membership card production (understandable to restore color business card printing and membership card making), and optical, chromatology of the original color concept is waysthe.

为了与专色制卡和会员卡制作举行区不合，凡是我们把不差板滞色彩的图案堵住光教或数字化技艺举行不合色而举行的还原印花都称为原色制卡和会员卡制作（可以抱怨为还原色彩制卡和会员卡制作），它与光教、色彩教上的原色观点是有不差别的。

The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

在傍轴近似条件下，可以利用光强传播方程对畸变波前进行相位恢复。对于衍射受限的光学系统，很难获得相位的边界径向斜率值作为边界条件，此外，要获得精确的圆域边界采样值也并非易事。为了克服上述困难，进一步研究了相位恢复改进方法，即改变了方程的表示形式、计算区域和边界条件，并用多重网格法进行求解获得重构相位，最后再将其修正。为了验证算法的精确性，搭建了实验系统对算法进行实验验证，将由CCD探测的光强分布进行计算得到的相位分布与相位恢复算法的结果进行比较，证明在光强分布非均匀的情况下，该方法恢复的相位均方根误差能够达到017 λ，可以适用于波前传感精度要求不是很高的相位恢复。标签自适应光学相位恢复相位修正光强传播方程 adaptive optics phase retrieval phase correction intensity transport equation

At first, an optical balanced heterodyne polarimeter using a Zeeman laser is setup in order to measure the circular birefringence or the optical activity or of quartz crystal of cornu depolarizer configuration.

论文的第一部分是建立创新之振幅敏感平衡侦测外差干涉极化仪(Amplitude sensitive balanced heterodyne polarimeter，ASBHP)并对石英晶体(cornu depolarizer，CD)的旋光性做即时及高精度测量。

The prices for the optical disk replication production equipment of an optical disk replication entity closed down upon investigation and punishment shall be decided upon the negotiation of both trading parties.

被查处关闭光盘复制单位的光盘复制生产设备的价格，由买卖双方协商解决；被查缴的光盘复制生产设备的价格，由有关部门评估定价。

Optical fiber will be in a total reflection in a horizontal displacement, the incident points and reflection point is not coincidence, will lead to optical signal pulse broadening influence of signal transmission.

光在光纤中发生全反射时会产生一个横向位移，入射点和反射点并不重合，将导致光信号脉冲展宽，影响信号传输。

During the design process of Blu-ray disc optical pick-up, the optical system and the collimator lens design is especially important.

在蓝光光盘光学头设计过程中，光学系统的设计，有举足轻重的作用，特别是准直镜的设计。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。