查询词典 optical density

Therefore, the energy of π(superscript *) orbit decreases, the probability of optical absorption increases, the n→π(superscript *) electronic transition enhances, and the absorption band broadens and shows red-shift. The above phenomenon will result in the degradation of optical properties of ZnO/silicone white paint under proton exposure.

同时Si-O-Si链内氧原子未成键的孤对电子与邻近硅原子的3d空轨道配位，降低了π轨道的能量，提高了对光吸收的几率，增强了n→π电子跃迁，使吸收带红移，从而导致ZnO/silicone白漆光学性能退化。

With the help of item funds including the experimentation technology of the total accouterments department and the martial research and Ordnance Engineering College's fund, a series of research work have been finished, which is about the high power laser damage to optical material, optical elements, optoelectronic sensors and optoelectronic system.

本论文在总装试验技术项目、军队科研项目和解放军军械工程学院重点基金等的资助下，开展了强激光对光学材料、光学元器件、光电探测器件和光电系统的干扰、破坏以及强激光防护技术的研究工作。

The method of designing binary optical element is proposed to realize Achromatic Optical Variable Device.

提出了一种实现消色散光变图像的二元光学方法。

A new method based on the spectrum-dividing and achromatic principles of binary optical lens to design the relay optical system of the resource satellite is proposed.

使用一种基于二元光学透镜的分光成像及消色差原理的新方法来设计资源卫星的中继光学系统。

A polarizing plate is provided and includes a polarizing film and two transparent protective film, at least one of the two transparent protective films being an optical compensation sheet, the optical compensation sheet being a cellulose acylate film having a thickness of from 40 m to 180 m.

本发明提供了一种偏振片，其包括偏振薄膜和两个透明保护薄膜，该两个透明保护薄膜中的至少一个是光学补偿片，该光学补偿片是厚度为40～180μm的纤维素酰化物薄膜。

The distributed optical fiber sensing technique is applied to monitor and analyze the cracks in the geological adit of Jinping Hydropower Station I; for which the distributing and embedded technologies of the distributed optical fiber for the cracking monitoring of the adit are presented herein.

应用分布式光纤传感技术对锦屏一级水电站地质平硐裂缝进行了监测分析，介绍了分布式光纤在工程平用裂缝监测的布设和埋设工艺。

The optical recording behavior of 1-Azo nickel chelate was performed by adynamic optical recording tester utilizing signals of central frequency 500kHz and 1 ×recording speed under irradiation of 780 nm semiconductor laser. When the writingpower is 7-8 mW, the CNR reaches 45 dB.

采用光盘动态测试仪测定了具有支持盘片、以偶氮染料1-Azo镍螯合物为记录层、反射层的三层结构盘片的光记录性能，用780 nm半导体激光，中心频率500 kHz，1倍速转速，写入频率为7-8 mW时，载噪比为45 dB。

Then select the suitable and anastigmatic set to constitute a physical's four group of optical zoom lenses structure. Making use of the optical software excellent turn to reduce the aberration pass muster specification of requirement.

进而选择合适的透镜组组成一个实际的四群光学变焦结构，利用光学软体优化降低像差成份进而达到规格的需求。

The relationship between acoustic wave direction,laser incident angle,and laser diffraction angle of TeO2 acousto-optical deflector with acoustic frequency was analyzed based on the TeO2 crystal acousto-optical characteristic and Dixon equations under abnormal Bragg diffraction.

根据晶体的声光特性以及反常布喇格衍射的Dixon方程，得出了氧化碲声光偏转器在反常布拉格衍射条件下的参量矢量关系。分析了超声波方向、入射光角度、衍射光角度与声波频率之间的关系。

Refraction regularity of extraordinary ray in uniaxial crystal with arbitrarily oriented optical axis;2. In the case of optical axis of uniaxial crystal being parallel with the incident plane, the angle of refraction of extraordinary ray are calculated by using Fermat's principle.

在单轴晶体的光轴与入射面平行的情形下用费马原理计算非寻常光光线的折射角，然后就怎样定义非寻常光作些讨论，最后在单轴晶体的光轴任意取向的普遍情形下给出计算非寻常光光线折射方向的公式。

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。