Discussion is made to some properties of aspheric surface. A novel method is presented to define and calculate the best fitting sphere and the asphericity of high order aspheric surface. Thus, the asphericity calculations of the conicoid and high order aspheric surfaces are unified.

在本文中久久九九re精品国产三级，對(duì)非球面的一些性質(zhì)進(jìn)行了討論影音在线资源，提出一種新的高次非球面的最接近球面及最大非球面度的定義和計(jì)算方法干干干干干干干色，實(shí)現(xiàn)了軸對(duì)稱(chēng)的高次非球面和二次非球面的非球面度計(jì)算的統(tǒng)一久久人人超国产三级。

Through finding a best fitting spherical surface, making the maximum deviation between aspheric surface and the best fitting spherical surface minimum, the maximum deviation at this time is just the maximum asphericity of aspheric surface.

尋找最接近球面jizzjizzzz中国，使其沿法線(xiàn)方向與非球面的最大偏離量最小，此時(shí)的最大偏離量即為非球面的最大非球面度欧美精品午夜在线视频。

A real-time interferometric method for testing asphere was proposed to measure aspherical surface with small asphericity without other null optics.

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The said Martinez stretcher comprises concave spherical reflecting lens, plane reflecting lens and grating. The said compressor comprises plane reflecting lens, inner right angle reflecting lens and grating, which is characterized by the following: the grating fringe density of the stretcher is larger than that of the compressor.

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Chaikin algorithm is the simplest discrete curve modeling method.In thepaper planar Chaikin algorithm is generalized into sphere,and the practicability ofthe algorithm as well as the continuous differentiable property of the generatingcurve is proved.It is shown that the curve generated by Chaikin algorithm is apiecewise spherical Bezier curve of second kind of order two.Furthermore,generalspherical corner-cutting algorithms are discussed,and it is pointed out that thecurve generated through corner-cutting has"Spherical Variation DiminishingProperty".3Curve interpolation method restricted on a smooth surface based ontransformation.

Chaikin算法是最簡(jiǎn)單的離散曲線(xiàn)造型方法免费作爱视频免费观看，文中將Chaikin算法推廣到球面，證明了算法的可行性和生成曲線(xiàn)的連續(xù)可微性“超碰中文在线”，指出球面Chaikin算法得到的曲線(xiàn)是分段的二次第二類(lèi)球面Bezier曲線(xiàn)伊人久久久久亚洲色综网，并給出了用球面Chaikin算法構(gòu)造球面插值曲線(xiàn)的算法；進(jìn)一步亚洲真人久久99精品，文中討論了一般的球面割角算法国产精品九，指出由球面割角算法得到的曲線(xiàn)具有"球面變差縮減性質(zhì)"。3基于變換的約束在光滑曲面上的曲線(xiàn)插值方法国产精品大全在线播放。

This dissertation focuses on the spherical wavelet expansion of the earth gravity field and its application. Based on the concept of the integration approaches and radial basis functions the spherical wavelet is put forward, with that the earth gravity field is described in a new way, and some other researches are conducted, they are: spherical wavelet regularization, multiscale approximation of satellite gravity measurement, down continuation of airborne geavimetry data, the least squares properties of geopotential wavelet approximation, the spherical wavelet solution of two kinds of BVP and spherical selective multiscale reconstruction.

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For regular topology surface, intermediate surface local texture mapping are used; for irregular topology surface, subdivision surface local texture mapping are used. So different topology surface using different texture mapping methods can solve the contradiction between texture effect and processing speed when they are dealt with by single method. The three judge conditions of texture distortion in the process of mapping onto the sphere surface are discussed and the exiting algorithms of mapping are analyzed, the new algorithms of mapping onto the sphere surface are presented. In order to enhance the realistic of graphics, a new function of wood texture is presented. OpenGL is also introduced in this papers and some realization examples of texture mapping based on OpenGL under the environment of VC++ and POV-RAY are presented in some chapters.

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First,The properties of the spherical Bezier Curvesproposed by Ken Shoemake(Spherical Bezier curve of first kind)are listed,such asEndpoint property,Symmetry property,Invariant property under solid motion,Spherical convex hull property,etc.,and the fact that this kind of spherical BezierCurve is devoid of subdivision property is pointed out;Based on subdivision,theconcept of a new kind of spherical Bezier curve(Spherical Bezier curve of secondkind)is proposed.This kind of spherical Bezier curve is continuous differentiable.Furthermore,generalization of Bezier curve on more comprehensive manifolds isdiscussed.2Spherical Chaikin algorithm and general spherical corner-cuttingalgorithm.

首先国产欧美日韩另类一区，文中列舉了Ken Shoemake提出的點(diǎn)點(diǎn)生成的球面Bezier曲線(xiàn)(第一類(lèi)球面Bezier曲線(xiàn))的性質(zhì)，如端點(diǎn)性質(zhì)又粗又黄又硬又爽的免费视频,、對(duì)稱(chēng)性質(zhì)成品网站黄色网站高清、運(yùn)動(dòng)不變性質(zhì)、球面凸包性質(zhì)等日本网页在线观看，并指出這種球面Bezier曲線(xiàn)沒(méi)有剖分性質(zhì)麻豆AV免费看；基于細(xì)分，文中給出了一種新的球面Bezier曲線(xiàn)(第二類(lèi)球面Bezier曲線(xiàn))的構(gòu)造方法啪啪啪日本黄色网，指出這種曲線(xiàn)是連續(xù)可微的一级黄片视频免费看；作為這些理論的應(yīng)用，文中改進(jìn)了Ken Shoemake提出的球面插值曲線(xiàn)構(gòu)造方法日韩系列在线精品视频观看网站大全；進(jìn)一步中文自拍日韩在线视频网站，文中探討了Bezier曲線(xiàn)在更廣泛的流形上的推廣方法。2球面Chaikin算法和一般的球面割角算法国产区精品系列一区二区。

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

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The structure shown in the figure : The governing body received direct or roller drying cylinder, as the main components of the rotation; After finishing the outside of the sphere, Bottom Cover and soak spherical carbon graphite seal ring joint seal reliable seal friction deputy, Sealing ring in the spherical shell of its annular space sliding, in addition to oil-free bearings and with the close cooperation of Shell, Rotating connector so that the free support, and therefore do not require a high level of accuracy installed; Spherical seal ring wear, Spring means of pressure at any time in advance to receive compensation, compensation for the shell slowly moved backward, accessible through the tube outside the inscription on the line to observe the seals wear; When steam, Oil flows through the media or other spherical sealing ring and oil-free bearings, the formation of thin liquid film, sealing and lubrication, thereby reducing friction and wear, extending the service life.

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globoid worm gear：球面蝸桿傳動(dòng),球面蝸輪,球形蝸輪蝸桿

globoid worm 球形蝸桿 | globoid worm gear 球面蝸桿傳動(dòng),球面蝸輪,球形蝸輪蝸桿 | globoid worm gearing 球面蝸輪傳動(dòng)裝置

globoid worm gear：球面蝸輪,曲面蝸輪,球面蝸桿傳動(dòng)

globoid worm | 球面蝸桿 | globoid worm gear | 球面蝸輪,曲面蝸輪,球面蝸桿傳動(dòng) | globoid worm toothing | 球面蝸桿嚙合

hindley worm：亨德萊蝸桿,球面蝸桿,欣德利球面蝸桿

Hindley hob 亨德萊滾刀 | Hindley worm 亨德萊蝸桿,球面蝸桿,欣德利球面蝸桿 | hindley worm 球面蝸桿

hourglass worm：欣德利球面蝸桿,球面蝸桿

hourglass fracture 砂漏狀斷口 | hourglass worm 欣德利球面蝸桿,球面蝸桿 | hourglass worm wheel 球面蝸輪

spherical curvature：球面曲

spherical coordinates 球面座標(biāo),球面坐標(biāo)系 | spherical curvature 球面曲 | spherical curve 球面曲線(xiàn)

spherical variance function：球面變異數(shù)函數(shù)

球面變異數(shù) spherical variance | 球面變異數(shù)函數(shù) spherical variance function | 球面對(duì)稱(chēng)分布;球面對(duì)稱(chēng)分配 spherically symmetric distributions

spherical mean direction：球面平均方向

球面分布;球面分配 spherical distributions | 球面平均方向 spherical mean direction | 球面常態(tài)分布;球面常態(tài)分配 spherical normal distribution

spherical wave：球面波=>球面波

spherical washer 球氏墊圈 | spherical wave 球面波=>球面波 | spherical wave illumination 球面波照明

spherical bearing：球面軸承,球形支座,球面支承

special guide bearing特種導(dǎo)承 | spherical bearing球面軸承,球形支座,球面支承 | spherical roller thrust bearing推力球面滾子軸承

aspheric lens：非球面鏡頭,非球面透鏡

aspheric correcting lens ==> 非球面校正鏡 | aspheric lens ==> 非球面鏡頭,非球面透鏡 | aspheric polishing machine ==> 非球面拋光機(jī)