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    • 3. 发明授权
    • Computer generated hologram (ICGH) null
    • 计算机生成的全息图(ICGH)为零
    • US08416420B1
    • 2013-04-09
    • US12820463
    • 2010-06-22
    • Eugene Olczak
    • Eugene Olczak
    • G01B9/021
    • G01M11/005G01B9/02039
    • An optical testing system includes a computer generated hologram (CGH) and an imaging element (IE). Both are disposed in a path of light traveling between a wavefront measuring system (WMS) and an object under test. The CGH is located a first distance from the WMS and the IE is located a second distance from the WMS. The IE is further away from the WMS, than the CGH is from the WMS, along the path of light. The center of curvature (CoC) of the object under test is also disposed in the path of light, in which the CoC is located a third distance from the WMS. The third distance is larger than the second distance, along the path of light. The IE forms an image of the object under test at the CGH; and the CGH is configured to provide a null wavefront for the image of the object under test at the CGH. The null wavefront is received by the WMS. Moreover, the IE of the optical testing system may include an imaging lens having a planar surface facing away from the CGH and a convex surface facing toward the CGH. The IE may also include an imaging mirror.
    • 光学测试系统包括计算机产生的全息图(CGH)和成像元件(IE)。 两者都设置在波前测量系统(WMS)和被测物体之间行进的光路上。 CGH位于与WMS的第一距离,IE位于距离WMS的第二距离。 IE远离WMS,而CGH来自WMS,沿着光线。 被测物体的曲率中心(CoC)也设置在光路中,CoC距离WMS处于第三距离。 第三距离大于沿着光线的第二距离。 IE在CGH上形成被测对象的图像; 并且CGH被配置为在CGH处为被测对象的图像提供零波前。 无效波前由WMS接收。 此外,光学测试系统的IE可以包括具有背离CGH的平坦表面和面向CGH的凸面的成像透镜。 IE还可以包括成像镜。
    • 9. 发明授权
    • Method and apparatus for fabricating a light management substrates
    • 用于制造光管理基板的方法和装置
    • US07452490B2
    • 2008-11-18
    • US10908160
    • 2005-04-29
    • Eugene OlczakErwin W. Liang
    • Eugene OlczakErwin W. Liang
    • B29D11/00
    • G05B19/182G05B2219/35261
    • A method of machining a surface of a workpiece is accomplished by bringing a cutting tool into contact with the surface of the workpiece and for at least one cutting pass, i, causing relative movement between the cutting tool and the surface of the workpiece along a path in the surface of the workpiece. The path is in the nature of a mathematical function defined over a segment, C, of a coordinate system and characterized by a set of nonrandom, random or pseudorandom parameters selected from the group consisting of amplitude, phase and period or frequency. Relative movement between the cutting tool and the surface of the workpiece may be accomplished by bandpass filtering a noise signal; providing the bandpass filtered signal to a function generator; generating a randomly modulated mathematical function from the function generator; and in response to the randomly modulated function, directing the relative movement between the cutting tool and the surface of the workpiece along the path in the surface of the workpiece.
    • 通过使切削工具与工件的表面接触并且对于至少一个切削道次来实现加工工件的表面的方法,i,沿着路径导致切削工具和工件的表面之间的相对运动 在工件的表面。 该路径属于在坐标系的段C上定义的数学函数的性质,其特征在于从由幅度,相位和周期或频率组成的组中选择的一组非随机,随机或伪随机参数。 可以通过对噪声信号进行带通滤波来实现切削工具与工件表面之间的相对运动; 将带通滤波信号提供给函数发生器; 从函数发生器产生随机调制的数学函数; 并且响应于随机调制的功能,沿着工件表面中的路径引导切割工具和工件的表面之间的相对运动。