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    • 3. 发明公开
    • AN OPTICAL INTERFERENCE DEVICE
    • OPTISCHE INTERFERENZVORRICHTUNG
    • EP3117191A1
    • 2017-01-18
    • EP15761993.3
    • 2015-03-12
    • National University of Singapore
    • HEUSSLER, Sascha PierreMOSER, Herbert OskarPATHAK, Alok
    • G01J3/45
    • G01J3/4531G01J3/0205G01J3/0208G01J3/0229G01J3/0272
    • An optical interference device 100 is disclosed herein. In a described embodiment, the optical interference device 100 comprises a phase shifter array 108 for receiving a collimated beam of light. The phase shifter array 108 includes an array of cells 128 for producing optical light channels from respective rays of the collimated beam of light, with at least some of the optical light channels having varying phase shifts. The optical interference device 100 further includes a focusing lens 110 having a focal distance and arranged to simultaneously produce, from the optical light channels, a focused beam of light in its focal plane and an image downstream the phase shifter array 108 for detection by an optical detector 116. The optical interference device 100 also includes an optical spatial filter 112 arranged at the focal distance of the focusing lens 110 and arranged to filter the focused beam of light to produce a spatially distributed interference light pattern in zeroth order for detection by the optical detector 116. A method for producing a spatially distributed interference light pattern is also disclosed.
    • 本文公开了光学干涉装置100。 在所描述的实施例中,光学干涉装置100包括用于接收准直光束的移相器阵列108。 移相器阵列108包括用于从准直光束的相应光线产生光学光通道的单元阵列128,其中至少一些光学光通道具有不同的相移。 光学干涉装置100还包括聚焦透镜110,该聚焦透镜110具有焦距并被布置成从光学光通道同时产生其焦平面上的聚焦光束,以及移相器阵列108下游的图像,用于通过光学 光学干涉装置100还包括布置在聚焦透镜110的焦距处的光学空间滤光器112,并布置成滤光聚焦光束,以产生空间分布的干涉光图案,用于由光学器件检测 还公开了一种用于产生空间分布的干涉光图案的方法。