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    • 10. 发明授权
    • Method and apparatus for recording to and reading from a diffractive optics memory using symmetrical angular encoding
    • 用于使用对称角度编码记录到衍射光学存储器并从其读取的方法和装置
    • US07048190B2
    • 2006-05-23
    • US10506941
    • 2002-03-21
    • Patrick MeyrueisIdriss El HafidiRomualda GrzymalaJoël Fontaine
    • Patrick MeyrueisIdriss El HafidiRomualda GrzymalaJoël Fontaine
    • G06K7/10
    • G11B7/1362G03H1/265G11B7/0065G11B7/08564G11C13/04G11C13/042
    • The present invention relates to an apparatus and method for reading information from and recording information to a diffractive optics memory using symmetrical angular encoding. A coherent light source is split to form an object beam and a corresponding reference beam. An optical axis is defined by the object beam being aligned perpendicular to a plane of the diffractive optics memory. A steering mirror is configured to direct the reference beam received from the coherent light source to the memory. A first plurality of mirrors arranged around one side of the optical axis receives the reference beam from the steering mirror and directs the reference beam at a first angle towards the memory. A second plurality of mirrors arranged around the symmetrical side of the optical axis receives the reference beam from the steering mirror and directs the reference beam at a second angle towards the memory. The first angle is identical to the second angle but formed on the symmetrical side of the optical axis.
    • 本发明涉及一种用于使用对称角度编码从信息读取信息并将其记录到衍射光学存储器的装置和方法。 相干光源被分割以形成物体光束和相应的参考光束。 光轴由垂直于衍射光学存储器的平面的物体光束定义。 导向镜被配置为将从相干光源接收的参考光束引导到存储器。 围绕光轴的一侧布置的第一多个反射镜从转向镜接收参考光束,并将参考光束以第一角度朝向存储器引导。 围绕光轴的对称侧布置的第二多个反射镜接收来自转向镜的参考光束,并将参考光束以第二角度朝向存储器。 第一角度与第二角度相同但形成在光轴的对称侧上。