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    ABERRATION CORRECTING APPARATUS
    15.
    发明申请
    ABERRATION CORRECTING APPARATUS 审中-公开
    异常校正装置

    公开(公告)号：US20100008196A1

    公开(公告)日：2010-01-14

    申请号：US11722186

    申请日：2005-12-19

    申请人： Helmar Van Santen ,  Michael Adrianus Henricus Van Der AA

    发明人： Helmar Van Santen ,  Michael Adrianus Henricus Van Der AA

    IPC分类号： G11B7/00 ,  G02B27/14

    CPC分类号： G11B7/1369 ,  G02B3/14 ,  G02B26/005 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2020/1288 ,  G11B2220/2541

    摘要： In optical disc systems, read-out is hampered because of spherical aberrations resulting from cover layer thickness variations or because discs consists of multiple layers. The aberration correcting apparatus (1) of the present invention is arranged to correct such an optical aberration. Therefore, the aberration correcting apparatus (1) comprises a fluid chamber containing a first fluid and a second fluid having different indices of refraction. The first (5) and second fluid (6) are in contact over a meniscus (7) acting as a refractive surface, wherein the shape of the meniscus (7) can be influenced by a magnetic field generated by a magnetizing coil (20).

    摘要翻译： 在光盘系统中，由于覆盖层厚度变化导致的球面像差或由于光盘由多层组成，所以读出受阻。 本发明的像差校正装置（1）被配置为校正这种光学像差。 因此，像差校正装置（1）包括含有第一流体和具有不同折射率的第二流体的流体室。 第一流体（5）和第二流体（6）在用作折射表面的弯月面（7）上接触，其中弯月面（7）的形状可以受到由磁化线圈（20）产生的磁场的影响， 。

    Method and device for irradiating spots on a layer
    18.
    发明授权
    Method and device for irradiating spots on a layer 有权
    用于在层上照射斑点的方法和装置

    公开(公告)号：US07399978B2

    公开(公告)日：2008-07-15

    申请号：US10539351

    申请日：2003-11-20

    申请人： Helmar Van Santen ,  Jacobus Hermanus Maria Neijzen

    发明人： Helmar Van Santen ,  Jacobus Hermanus Maria Neijzen

    IPC分类号： G21G5/00 ,  G03B27/52 ,  G03B27/42 ,  G03C5/00

    CPC分类号： G03F7/70341 ,  G11B7/122 ,  G11B7/1374 ,  G11B7/261

    摘要： For irradiating a layer a radiation beam is directed and focussed to a spot on the layer, relative movement of the layer relative to the optical element is caused so that, successively, different portions of the layer are irradiated and an interspace between a surface of the optical element nearest to the layer is maintained. Furthermore, at least a portion of the interspace through which the radiation irradiates the spot on the layer is maintained filled with a liquid, the liquid being supplied via a supply conduit and flowing out of an outflow opening through a total projected cross-sectional passage area in a plane parallel to the layer. The outflow opening or a plurality of the outflow openings are positioned such that, seen in a direction perpendicular to the layer, the total cross-sectional area has a centre in the portion of the interspace through which the radiation irradiates the spot.

    摘要翻译： 为了照射层，辐射束被引导并聚焦到层上的斑点，引起层相对于光学元件的相对运动，使得相继地照射该层的不同部分和在该层的表面之间的间隙 保持最靠近层的光学元件。 此外，辐射照射到层上的斑点的间隙的至少一部分保持充满液体，液体经由供应管道供给，并通过总投影横截面通过面积流出流出开口 在与平面平行的平面上。 流出开口或多个流出开口定位成使得从垂直于该层的方向看，总横截面积在该空间部分中的中心，辐射辐射穿过该点。