光像

Proceedings from the theory of geometric optics,the condition adaxial noncoherent imaging of Fizeau opticalsynthetic aperture imaging system is derived to achieve diffracion limited performance over a finite field of view,and the conclusion is that the angular magnification of the individual telescope must be equal to the linear demagnification factor.

从几何光学理论出发，详细推导了斐索型光学合成孔径成像系统的近轴非相干成像条件，即子望远系统的角放大率等于系统的线性缩放因子。对于焦平面上的像点而言，合成孔径成像系统可等效为一个带有特殊形状孔径光阑的望远系统，这要求该孔径光栏的开口形状和位置分布与合成孔径成像系统各子系统孔径大小和位置分布相一致。

The mechanism that experimental anisometropia affects stereoscopic vision closely correlates with the correction of anisometropia and the treatment of anisometropia amblyopia, so it is important to study this mechanism advanced.

本研究设计实验诱导屈光参差，并将屈光参差产生的视网膜像模糊和不等像视两个因素分开，观察和分析不等像视、视网膜像模糊单一因素及两种因素综合对立体视的影响。

The R effect on time-dependent phototropism was further studied by characterizing its fluence-response relationship. The results showed the R effect was a low-fluence-response, unlike those on pulse-induced phototropisms that show a very-low-fluence-response mode.

本研究进一步分析了红光对蓝光照射时间依赖型向光性影响的光量反应曲线，发现该反应不像红光对脉冲蓝光诱导的向光性的影响那样属于超低光量反应，而是一种低光量反应，且之后的脉冲远红光可以逆转红光对TDP影响的效果。

Using two symmetrical plano-convex lens system to fabricate grating was analyzed and the characteristic of diffraction wavefront aberration of the grating was summarized by ray tracing program using MATLAB siftware.

分析使用两个对称的单平凸透镜光路制作光栅并用MATLAB编写光线追迹程序分析了所制作的光栅的衍射波像差的特点，经计算得出在较小焦比D/F情况下其衍射波像差仅与两支光路点光源的调节偏差之差有关与单独的各个偏差无关；初级像差中球差很小几乎可忽略：彗差仅与垂轴调节偏差之差成线性关系；像散仅与轴向调节偏差之差成正比；且当平凸透镜的焦比D/F增大时，各像差项迅速增大。

The induced changes in log mesopic contrast sensitivity showed significant negative correlation with the changes in third-order (r =-0.490, P =.0013 without glare; r =-0.362, P =.0177 with glare; Spearman rank correlation coefficient) and fourth-order root mean square (r =-0.586, P =.0001 and r =-0.306, P =.0450, respectively).

中间视力对比敏感度log值的变化与三阶像差(r =-0.490， P =。0013 无眩光； r =-0.362， P =。0177 ，有眩光； Spearman 等级相关系数)和四阶像差(r =-0.586， P =。0001无眩光；； r =-0.306， P =。0450有眩光，)的均方根呈显著负相关。

By analyzing the optical characteristic of the off-axis and multi-pass amplified high power solid-state laser facility,using the theory of binary tree tracing and matrix optics,and dividing the system into four parts that include cavity amplification part,boost amplification part,beam reverser and beam output part,the ghost image are analyzed and traced.Main of ghost image that are devastating are given in all parts.

为了有效地避免鬼像破坏，针对采用离轴多程放大的高功率固体激光实验装置的光路特点，利用"光路二叉树"原理和"矩阵光学"方法，将全光路"单元化"为主放大、助推放大、反转器和输出4个部分进行光线追迹和鬼像分析，给出了各个部分的主要鬼像分布。

The operating principle and component of the shadowgraph experimental station were introduced. The clear shadowgraph of target was gained after construction. Using this technique, the calculative method of DT ice thickness and the surface roughness analytic method of target were realized. Through design simulative experiment, the shadowgraph of DT ice was got.

主要介绍了背光成像实验样机的组成及工作原理，讨论了各光学部件的选择，在原理型样机建成后，获得了玻璃微球靶高质量的背光图像，通过对背光影像的光路图分析与测量（测量精度达到1μm），掌握了靶球DT冰层厚度的计算方法；初步建立了靶球二维内外表面粗糙度分析方法；通过设计模拟实验，获得了冰层在微球靶丸内均匀分布后清晰的背光影像。

For choosing a material to interfere with IR and laser,the IR and 10.6μm laser transmissivity of micron-copper powders of different components were tested in the smoke chamber,when the concentration of the smoke reached 1.0 g·m-3,the transmissivity of 1~3μm,3~5μm and 8~14μm IR under 30%,and the transmissivity of 10.6μm laser under 20%,the attenuation ability of red copper powders,green and red copper powders and green copper powders to IR and 10.6μm laser increased gradually.At the same time,the interferent...

为选择一种能够遮蔽红外与激光的烟幕干扰材料，在烟幕箱中测试了组分配比不同的微米铜粉的红外与10.6μm激光烟幕透过率，当烟幕浓度为1.0 g.m-3时，1~3μm，3~5μm，8~14μm红外的透过率均小于30%，10.6μm激光的透过率小于20%，红光铜粉、青红光铜粉和青光铜粉对红外与10.6μm激光的衰减能力逐渐增强；同时测试了微米铜粉对红外热像仪的干扰效果，浓度为2.0 g.m-3时，青光铜粉能够完全遮蔽红外热像仪。

The Bengtsson-Jacobson conjecture that "degenerate phase boundaries are always null" is studied by the mapping language in Chapter 4. By distinguishing a "phase boundary" from its image in the "covariant approach", the nulless of the image is proved. Time-like and null hypersurfaces in the degenerate space-times in the Ashtekar theory are denned, and then the phase boundary obtained by the "covariant approach" is shown to be always null.

我们在第四章用映射的语言分析了Bengtsson和Jacobson关于&相边界为类光&的猜想；通过区分&协变方法&中的&相边界&和它的像，我们证明了像的类光性；在定义了Ashtekar退化时空中的类时和类光超曲面之后，我们证明了&协变方法&得到的相边界必定是类光的。

And the key technology is providing a proper simulated target. Play the LCD panel on the focal plane of the collimator,to display the real-time figure formed by the simulation software.With the light shining on the LCD panel,the collimator forms a simulated target with a infinite distance.

本课题研究主要内容是：提出了用计算机控制的数字仿真目标设计思想，以液晶光阀替代传统成像平行光管的分划板，并实时显示计算机生成的各种图形；在外光源的照射下，平行光管将液晶光阀显示的图形成像于无穷远，提供给被测光电跟踪测量设备。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。