Improvements in and relating to ophthalmoscopes
    3.
    发明公开
    Improvements in and relating to ophthalmoscopes 审中-公开
    检眼镜的改进

    公开(公告)号:EP2805670A1

    公开(公告)日:2014-11-26

    申请号:EP14166795.6

    申请日:2014-05-01

    申请人: Optos PLC

    IPC分类号: A61B3/10 G02B27/00

    摘要: A scanning laser ophthalmoscope (10) for scanning the retina of an eye (22) is provided comprising a light source (12) emitting a beam of light (13), scan relay elements (14, 16, 18, 20), wherein the light source and the scan relay elements provide a two-dimensional scan of the light beam which is transferred from an apparent point source at a pupillary point of the eye to the retina of the eye, and a static aberration correction element (30) which has a shape defined to provide correction of aberrations of at least some of the scan relay elements and a location within the ophthalmoscope chosen to provide correction of aberrations of at least some of the scan relay elements, which location maintains transfer of the beam of light from the apparent point source at the pupillary point of the eye to the retina of the eye.
    The invention further provides an aberration correction element (30) and a method of determining a shape of the aberration correction element.

    摘要翻译: 提供了用于扫描眼睛(22)的视网膜的扫描激光检眼镜(10),其包括发射光束(13)的光源(12),扫描中继元件(14,16,18,20),其中, 光源和扫描中继元件提供从眼睛的瞳孔点处的表观点源传递到眼睛的视网膜的光束的二维扫描;以及静态像差校正元件(30),其具有 被定义为提供至少一些扫描中继元件的像差的校正的形状以及被选择用于提供至少一些扫描中继元件的像差的校正的检眼镜内的位置,该位置维持来自 在眼睛瞳孔点到眼睛视网膜的明显点源。 本发明还提供了一种像差校正元件(30)和一种确定像差校正元件的形状的方法。

    MULTI-MODAL SPOT GENERATOR AND MULTI-MODAL MULTI-SPOT SCANNING MICROSCOPE
    4.
    发明公开
    MULTI-MODAL SPOT GENERATOR AND MULTI-MODAL MULTI-SPOT SCANNING MICROSCOPE 审中-公开
    多模式光斑发生器和多模式多SPOT GRID显微镜

    公开(公告)号:EP2232306A2

    公开(公告)日:2010-09-29

    申请号:EP08852174.5

    申请日:2008-11-19

    摘要: The invention relates to a spot generator (10) having: —an entrysurface (12) for receiving an incident light beam (20) and an exit surface (14) for (22, 24) transmitting the light beam, the entry surface defining an entryside (16) and the exit surface defining an exit side (18). According to the invention, the spot generator is designed to modulate the incident light beam to generate on the exit side a first plurality (22) and a second plurality (24) of separate light spots, each light spot belonging to the first plurality having a first angular spectrum and each light spot belonging to the second plurality having a second angular spectrum different than the first angular spectrum. Advantageously, the spot generator comprises a periodic binary phase structure. The invention further relates to a multi-spot scanning microscope and to a method of imaging a microscopic sample.

    APPARATUS AND METHOD FOR HIGH-SPEED PHASE SHIFTING FOR INTERFEROMETRIC MEASUREMENT SYSTEMS
    7.
    发明公开
    APPARATUS AND METHOD FOR HIGH-SPEED PHASE SHIFTING FOR INTERFEROMETRIC MEASUREMENT SYSTEMS 审中-公开
    VORRICHTUNG UND VERFAHREN ZUR SCHNELLEN PHASENUMTASTUNGFÜRINTERFERROMETRISCHE MESSSYSTEME

    公开(公告)号:EP2399098A1

    公开(公告)日:2011-12-28

    申请号:EP09840534.3

    申请日:2009-02-23

    IPC分类号: G01B11/25 G01B11/24

    摘要: Described are a method and apparatus for high-speed phase shifting of an optical beam. A transparent plate having regions of different optical thickness is illuminated by an optical beam along a path of incidence that extends through the regions. The transparent plate can be moved or the optical beam can be steered to generate the path of incidence. The optical beam exiting the transparent plate has an instantaneous phase value according to the region in which the optical beam is incident. Advantageously, the phase values are repeatable and stable regardless of the location of incidence of the optical beam within the respective regions, and phase changes at high modulation rates are possible. The method and apparatus can be used to modulate a phase difference of a pair of coherent optical beams such as in an interferometric fringe projection system.

    摘要翻译: 描述了用于光束的高速相移的方法和装置。 具有不同光学厚度的区域的透明板被沿着穿过该区域的入射路径的光束照射。 可以移动透明板,或者使光束转向以产生入射路径。 离开透明板的光束根据光束入射的区域具有瞬时相位值。 有利地,无论光束在各个区域内的入射位置如何,相位值是可重复和稳定的,并且在高调制速率下的相位变化是可能的。 该方法和装置可用于调制一对相干光束的相位差,例如在干涉条纹投影系统中。

    MULTI-FOCAL SPOT GENERATOR AND MULTI-FOCAL MULTI-SPOT SCANNING MICROSCOPE
    9.
    发明公开
    MULTI-FOCAL SPOT GENERATOR AND MULTI-FOCAL MULTI-SPOT SCANNING MICROSCOPE 审中-公开
    多灶性点产生多病灶MULTI SPOT检测显微镜

    公开(公告)号:EP2215503A2

    公开(公告)日:2010-08-11

    申请号:EP08851443.5

    申请日:2008-11-19

    IPC分类号: G02B3/00 G02B27/00 G02B21/00

    摘要: The invention relates to a spot-generator (10) having: an entrance surface (12) for receiving an incident light beam (20) and an exit surface (14) for transmitting the light beam, the entrance surface defining an entrance side (16) and the exit surface defining an exit side (18), wherein the spot generator is designed to modulate the incident light beam to generate on the exit side a plurality of separate light spots. According to the invention, the plurality of light spots comprises a first light spot (22) generated in a first focal plane (24) and a second light spot (26) generated in a second focal plane (28), the first focal plane and the second focal plane being essentially perpendicular to the mean propagation direction of the exit light beam, and wherein the first light spot (22) differs from every other light spot generated on the exit side by the spot generator in the projection of its position on a plane essentially perpendicular to the mean propagation direction of the exit light beam. Advantageously, the light spots of the plurality of separate light spots have identical spectra. The invention further relates to a multi-spot scanning microscope and to a method of generating an image of a microscopic sample. Advantageously, the method comprises the step of generating a three-dimensional image of the sample.

    DEVICE FOR GENERATING AN ARRAY OF LIGHT SPOTS
    10.
    发明公开
    DEVICE FOR GENERATING AN ARRAY OF LIGHT SPOTS 审中-公开
    设备技术创造光点阵列

    公开(公告)号:EP1803027A1

    公开(公告)日:2007-07-04

    申请号:EP05786832.5

    申请日:2005-09-28

    IPC分类号: G02B27/44

    CPC分类号: G02B27/0087 G02B5/1866

    摘要: The invention relates to a device for generating a periodical array of light spots from an input light beam, said device comprising - a periodical array of apertures (202) forming a plurality of interlaced sub-arrays of apertures, - phase shifter elements (PS;) placed in front of said apertures for imposing a phase shift to said input light beam so that each light spot is constructed as the superposition of a plurality of light spots generated by said plurality of interlaced sub-arrays of apertures. Use : Light spot generation.