Fundus photographing apparatus
    2.
    发明公开
    Fundus photographing apparatus 审中-公开
    Augenhintergrund-Fotografievorrichtung

    公开(公告)号:EP2404545A2

    公开(公告)日:2012-01-11

    申请号:EP11172522.2

    申请日:2011-07-04

    申请人: Nidek Co., Ltd.

    IPC分类号: A61B3/12

    摘要: A fundus photographing apparatus for photographing a fundus of an examinee's eye includes: a fundus photographing optical system for obtaining a fundus image, including: an optical scanner that scans the fundus with measurement light including at least part of light emitted from a light source; and a light detector that receives light including reflected light from the fundus; a length information obtaining unit for obtaining length information on an axial direction of the eye; and a controller that adjusts driving information of the fundus photographing optical system in relation to a photographing range based on the length information obtained by the length information obtaining unit and controls the fundus photographing optical system based on the adjusted driving information to obtain a fundus image corresponding to a photographing range.

    摘要翻译: 用于拍摄受检者眼底的眼底摄影装置包括:用于获得眼底图像的眼底拍摄光学系统,包括:光学扫描仪,其用包括从光源发出的光的至少一部分的测量光扫描眼底; 以及光检测器,其接收包括来自眼底的反射光的光; 长度信息获取单元,用于获得关于眼睛的轴向的长度信息; 以及控制器,其基于由所述长度信息获取单元获得的长度信息,相对于拍摄范围调整所述眼底拍摄光学系统的驾驶信息,并且基于所述调整后的驾驶信息控制所述眼底拍摄光学系统,以获得对应的眼底图像 到拍摄范围。

    Design method of aspheric ophthalmic lens
    3.
    发明公开
    Design method of aspheric ophthalmic lens 审中-公开
    Gestaltungsverfahrenfüreineasphärischeopthalmische Linse

    公开(公告)号:EP2107417A1

    公开(公告)日:2009-10-07

    申请号:EP09156602.6

    申请日:2009-03-30

    申请人: Nidek Co., Ltd.

    IPC分类号: G02C7/04 A61F2/16

    摘要: A method of designing an aspheric ophthalmic lens capable of reducing aberration of an eye, comprises: a step of modeling an optical system including a cornea and an ophthalmic lens by inclining the optical system about a rotation point by a predetermined angle in consideration of a displacement angle between an optical axis and a visual axis of the eye (1); a step of calculating aberration resulting from the modeled optical system; and a step of designing a shape of at least one of a front surface and a back surface of the ophthalmic lens to reduce the aberration resulting from the modeled optical system.

    摘要翻译: 一种设计能够减少眼睛畸变的非球面眼科镜片的方法,包括:考虑到位移,通过使光学系统围绕旋转点倾斜预定角度来对包括角膜和眼科镜片的光学系统进行建模的步骤 光轴和眼睛的视轴之间的角度(1); 计算由所建模的光学系统产生的像差的步骤; 以及设计眼科镜片的前表面和后表面中的至少一个的形状以减少由所建模的光学系统产生的像差的步骤。

    Fundus photographing apparatus
    5.
    发明公开
    Fundus photographing apparatus 审中-公开
    眼底摄影装置

    公开(公告)号:EP2404545A3

    公开(公告)日:2016-03-02

    申请号:EP11172522.2

    申请日:2011-07-04

    申请人: Nidek Co., Ltd.

    IPC分类号: A61B3/12 A61B3/10

    摘要: A fundus photographing apparatus for photographing a fundus of an examinee's eye includes: a fundus photographing optical system for obtaining a fundus image, including: an optical scanner that scans the fundus with measurement light including at least part of light emitted from a light source; and a light detector that receives light including reflected light from the fundus; a length information obtaining unit for obtaining length information on an axial direction of the eye; and a controller that adjusts driving information of the fundus photographing optical system in relation to a photographing range based on the length information obtained by the length information obtaining unit and controls the fundus photographing optical system based on the adjusted driving information to obtain a fundus image corresponding to a photographing range.

    Ophthalmic photographing apparatus
    6.
    发明公开
    Ophthalmic photographing apparatus 有权
    眼科摄影设备

    公开(公告)号:EP2347701A1

    公开(公告)日:2011-07-27

    申请号:EP11151579.7

    申请日:2011-01-20

    申请人: NIDEK CO., LTD

    IPC分类号: A61B3/117 A61B3/12 A61B5/00

    摘要: An ophthalmic photographing apparatus includes: an interference optical system (200) including a splitter (26) that splits light, emitted from a measurement light source (27), into measurement light and reference light, and synthesizing the measurement light reflected on an eye (E) with the reference light to guide the synthesized light to a detector (83); a driving part (50) that moves an optical member (31) arranged in the optical path to adjust an optical-path difference between the measurement light and the reference light; an image obtaining part (70) that obtains a tomographic image of a fundus or an anterior segment based on a light receiving signal output from the detector (83); and a driving control unit (70) that controls driving of the driving part (50) to locate the optical member (31) in a predetermined position corresponding to either a photographing mode for photographing the tomographic image of the fundus or a photographing mode for photographing the tomographic image of the anterior segment.

    Ophthalmic photographing apparatus
    7.
    发明公开
    Ophthalmic photographing apparatus 有权
    眼科Fotografievorrichtung

    公开(公告)号:EP2258257A1

    公开(公告)日:2010-12-08

    申请号:EP10164634.7

    申请日:2010-06-01

    申请人: Nidek Co., Ltd.

    IPC分类号: A61B3/12 A61B3/14

    摘要: An ophthalmic photographing apparatus including an interference optical system for dividing light from a first light source into measurement light and reference light, directing measurement light to a fundus and reference light to a reference optical system, and photo-receiving by a first photodetector interference light, a first optical scanner disposed in a measurement light optical path and scanning measurement light in two dimensional directions, a driving unit moving an optical member in an optical path of measurement light or reference light to change an optical path length, a control unit controlling the driving unit to adjust an optical path length difference, controlling the optical scanner to scan measurement light at a given photographing view angle, and obtaining a tomographic image based on a photodetector signal, and a calculation unit converting a photographing range into an actual distance based on optical member positional information and view angle information.

    摘要翻译: 一种眼科摄影装置,包括用于将来自第一光源的光分离成测量光和参考光的干涉光学系统,将测量光引导到眼底并将参考光引导到参考光学系统,以及通过第一光电检测器干涉光进行光接收, 第一光学扫描仪,设置在测量光学光路中并扫描二维方向上的测量光;驱动单元,使光学构件在测量光或参考光的光路中移动以改变光程长度;控制单元,控制驱动 单元以调整光程长度差,控制光学扫描器以给定的拍摄视角扫描测量光,并且基于光电检测器信号获得断层图像,以及计算单元,其基于光学器件将拍摄范围转换为实际距离 会员位置信息和视角信息。