光像

Intermediate image of three-mirror anastigmat having two image surfaces was between secondary and tertiary mirror. In order to fold the optical path, four-mirror anastigmat was designed by adding the spherical reflective mirror at intermediate image.

带一次中间像面的离轴三反系统的中间像位于次镜和三镜之间，为了进一步折叠光路，在中间像面处加入球面反射场镜，从而成为离轴四反。

As an aboriginal painter, Dieter Jung applies the hologram to paint, which is equal to draw in light. In the recent years, he applies the digital technique, making the breakthrough in the traditional hologram to solve the problems of limited perspective, too small area and the color distortion, so as to form the indefinite and continuous space views. It is another angle created by the interaction between the viewers and Dieter Jung hologram.

原本是画家的迪特·容格，运用全像术等于是以光来作画，近年来他更运用数字技术，突破传统全像术景深不够、面积太小，以及颜色失真的局限性，观众可以随着自己所在观看位置的移动，而感受光线、色彩、形象的变化，形成不确定而可持续变动的空间景观，是由观者与迪特·容格的全像光影进行互动所共同创造出来的另一向度。

On the basis of the fundamental theory of information optics, the Fourier transform and an iterative approach are used to calculate and analyze the point image of an optical imaging system the Point Spread Function (PSF of light intensity, to retrieve the phase of imaging system and then to obtain the wave font of the optical system.

基于信息光学基础理论，采用傅里叶变换和迭代算法计算分析了光学成像系统的星点图像（光强点扩散函数，PSF），实现了对光学成像系统位相的复原，获得了波像差信息。

The theory of the system is combining formation of image and parallel white light projection. The system uses many edg measurement methods with subimage-element accuracy, and has many merits such as hige measurement accuracy, strong anti-interference function, intuitionistic measurement, convenient using and esay maintenance and so on. The repeatability of position measurement is below 0.1μm (0.05 pixel). EDG is used in practical machining of feedback stick, which is used in astronavigation industry.

在分析研究各种CCD工业检测技术基础上，研制了基于CCD和PC数字图像处理技术的反馈杆刚度检测系统，该系统采用成像法和平行白光投影法相结合的原理，综合运用了多种亚像素精度边缘检测方法，具有检测精度高、抗干扰能力强、检测直观、使用方便和易于维护等优点，其位置检测的重复精度可稳定在0.1μm（0.05像素）以内。

An underwater optical system of big field and relative aperture is designed according to the characters of underwater low light level imaging.

针对系统的微光成像特点，设计了大视场、大相对孔径的光学系统，增加了进入成像器件的光能量，提高了成像质量。

According to third-order aberration theory, the conditions of the absence of aberrations were analyzed, and the influences to the remaining high order aberrations of the system caused by the change of the relative aperture of the primary mirror, the position of the corrector and the different combination of the positive and negative lens in the corrector were investigated.

根据像差理论分析了消像差的条件，研究了主镜的相对孔径变化、校正板在次镜后的位置变化以及无光焦度校正板的正负透镜的不同组合形式对系统高级残余像差的影响。

Light comes to the soul through God's word, through His servants, or by the direct agency of His Spirit; but when one ray of light is disregarded, there is a partial benumbing of the spiritual perceptions, and the second revealing of light is less clearly discerned.

真光来到人心里，有的是藉著上帝的仆人，有的是藉著上帝的话，或由上帝直接的代表圣灵；但人见了一线真光若置之不理，则他属灵的知觉就会麻木，当真光再次显现时，他就不能像第一次那么认得清楚了。

The research for the three-photon correlated imaging with incoherent light of lensless Fourier-transform is reported.

首次从理论上提出了利用非相干光场在无透镜的情况下，得出高阶干涉光的三阶关联函数解析式，并证明了非相干光场通过傅里叶变换，完全能够实现多光子的关联成像。

When I meet the engine with its train of cars moving off with planetary motion —— or, rather, like a comet, for the beholder knows not if with that velocity and with that direction it will ever revisit this system, since its orbit does not look like a returning curve —— with its steam cloud like a banner streaming behind in golden and silver wreaths, like many a downy cloud which I have seen, high in the heavens, unfolding its masses to the light —— as if this traveling demigod, this cloud-compeller, would ere long take the sunset sky for the livery of his train; when I hear the iron horse make the hills echo with his snort like thunder, shaking the earth with his feet, and breathing fire and smoke from his nostrils（what kind of winged horse or fiery dragon they will put into the new Mythology I don't know）, it seems as if the earth had got a race now worthy to inhabit it.

当我遇见那火车头，带了它的一列车厢，像行星运转似的移动前进，——或者说，像一颗扫帚星，因为既然那轨道不像一个会转回来的曲线，看到它的人也就不知道在这样的速度下，向这个方向驰去的火车，会不会再回到这轨道上来，——水蒸汽像一面旗帜，形成金银色的烟圈飘浮在后面，好像我看到过的高高在天空中的一团团绒毛般的白云，一大块一大块地展开，并放下豪光来，——好像这位旅行着的怪神，吐出了云霞，快要把夕阳映照着的天空作它的列车的号衣；那时我听到铁马吼声如雷，使山谷都响起回声，它的脚步踩得土地震动，它的鼻孔喷着火和黑烟（我不知道在新的神话中，人们会收进怎样的飞马或火龙），看来好像大地终于有了一个配得上住在地球上的新的种族了。

Support for all modern per-pixel lighting and rendering techniques including normal mapped, parameterized Phong lighting; custom artist controlled per material lighting models including anisotropic effects; virtual displacement mapping; light attenuation functions; pre-computed shadow masks; directional light maps; and pre-computed bump-granularity self-shadowing using spherical harmonic maps.

支持现今所有的像素级光渲染技术比如法线贴图，参数级光照，艺术家自定义的材质光模型分属性管理，包含了各向异性过滤，虚拟置换贴图，光衰减功能，预计算的光影蒙版，指向性光影贴图和预计算的使用球型协调贴图技术的颗粒状自我阴影。

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。