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    • 48. 发明授权
    • Method for detecting equatorial plane
    • 赤道平面检测方法
    • US07952712B2
    • 2011-05-31
    • US12406263
    • 2009-03-18
    • Susumu SegawaYusuke Ebi
    • Susumu SegawaYusuke Ebi
    • G01J4/00
    • G01N21/21G01N21/23
    • To provide a method for detecting the equatorial plane, capable of detecting directly an equatorial plane that has the optical axis as the axis thereof, in a spherical optically uniaxial crystal. The method for detecting the equatorial plane as set forth in a first form of the present invention is a method for detecting an equatorial plane of a spherical member made from a single crystal of an optically uniaxial crystal having birefringence, comprising: a step for causing light to be incident on the spherical member through a polarizer; and a step for observing the isogyre that is structured by the light that is emitted from the spherical member through an analyzer that has a cross-nicol relationship with the polarizer; wherein the isogyre is an isogyre that is observed when the oscillating direction of the polarizer or the analyzer is near to parallel with the optical axis of the spherical member.
    • 为了提供一种用于检测赤道平面的方法,其能够直接检测具有光轴作为其轴的赤道平面的球形光学单轴晶体。 根据本发明的第一形式的赤道面的检测方法是由具有双折射的光学单轴晶体的单晶制成的球面的赤道面的检测方法,其特征在于, 通过偏振器入射在球形构件上; 以及用于观察由从球形构件通过与偏振器具有交叉尼科尔关系的分析器发射的光构成的等角线的步骤; 其中所述异晶体是当所述偏振器或所述分析仪的振荡方向与所述球形构件的光轴接近平行时观察到的等角线。