Eye refractive power measuring apparatus
    1.
    发明授权
    Eye refractive power measuring apparatus 失效
    眼屈光力测量仪

    公开(公告)号:US4744648A

    公开(公告)日:1988-05-17

    申请号:US866247

    申请日:1986-05-23

    IPC分类号: A61B3/10 A61B3/103

    CPC分类号: A61B3/103

    摘要: An improved eye refractive power measuring apparatus is disclosed. The apparatus includes a measurement system for projecting a measurement target image to the retina of an eye to be tested and measuring the refractivity of the eye to be tested by detecting the focussing state of the measuring target image. In addition, it has an eye position detection system for detecting a shifted amount from a proper position of the eye to be tested and an arrangement for correcting a measurement result of the eye refractivity based on such detected result.

    摘要翻译: 公开了一种改进的眼睛屈光度测量装置。 该装置包括测量系统,用于将测量目标图像投射到待测眼睛的视网膜,并通过检测测量目标图像的聚焦状态来测量待测眼睛的折射率。 此外,它具有用于从被测眼睛的适当位置检测偏移量的眼睛位置检测系统和用于基于这种检测结果校正眼睛折射率的测量结果的装置。

    Image rotating means for eye refractometers
    2.
    发明授权
    Image rotating means for eye refractometers 失效
    用于眼睛折射仪的图像旋转装置

    公开(公告)号:US4367019A

    公开(公告)日:1983-01-04

    申请号:US142720

    申请日:1980-04-22

    IPC分类号: A61B3/10 A61B3/103

    CPC分类号: A61B3/1035

    摘要: Eye refractometer including a target projecting optical system for projecting a target image on the retina of a patient's eye, and an observing optical system for observing the target image. An image rotator is provided for rotating the target image to thereby locate the astigmatic axes. The image rotator is associated with a rotating mechanism which includes an actuating member for producing a stepless rotation of the image rotator and a second member for rotating the first member by an angle corresponding to a 90.degree. rotation of the target image.

    摘要翻译: 眼睛折射计包括用于将目标图像投影在患者眼睛的视网膜上的目标投影光学系统和用于观察目标图像的观察光学系统。 提供图像旋转器用于旋转目标图像,从而定位散光轴。 图像旋转器与旋转机构相关联,旋转机构包括用于产生图像旋转器的无级旋转的致动构件和用于使第一构件旋转相应于目标图像的90度旋转的角度的第二构件。

    Ocular position measuring apparatus
    3.
    发明授权
    Ocular position measuring apparatus 失效
    眼位测量仪

    公开(公告)号:US4712895A

    公开(公告)日:1987-12-15

    申请号:US664507

    申请日:1984-10-25

    CPC分类号: A61B3/085 A61B3/113

    摘要: An ocular position measuring apparatus comprising a pair of fixation marks capable of emitting visible flickering beams for being watched by patient, a first pair of half mirrors positioned between the patient's eyes and the marks and an observing system for observing images of the patient's eyes on produced by light beams reflected by the half mirrors.

    摘要翻译: 一种眼部位置测量装置,包括能够发射可见的闪烁光束以供患者观看的一对固定标记,位于患者眼睛和标记之间的第一对半反射镜和用于观察患者眼睛的图像的观察系统 由半反射镜反射的光束。