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    • 2. 发明授权
    • Hand-held non-contact tonometer
    • 手持式非接触式眼压计
    • US06361495B1
    • 2002-03-26
    • US09499837
    • 2000-02-07
    • Bernard Grolman
    • Bernard Grolman
    • A61B316
    • A61B3/165
    • A hand-held non contact tonometer includes a piston having a transparent plane parallel window normal to a measurement axis of the tonometer along which the piston travels to discharge a fluid pulse without interfering with optical alignment functions of the instrument. In a first embodiment intended for home use by a patient, an alignment guidance system utilizing a concave mirror and a target source in a plane containing the center of curvature of the concave mirror present an alignment image to the patient for guiding self-alignment. An infra-red light source at the focal point of the concave mirror irradiates the concave mirror so that a collimated beam is reflected along the measurement axis and focused by an objective lens. When the focal point of the objective lens coincides with the center of curvature of the cornea, the infra-red light is retro-reflected through the system and diverted orthogonally from measurement axis to a masked detector to passively monitor alignment and trigger release of the piston. A second embodiment for office use by a general medical practitioner includes an eyepiece in place of the concave mirror for allowing operator observation along the measurement axis during alignment.
    • 手持式非接触式眼压计包括具有垂直于眼压计的测量轴线的透明平面平行窗口的活塞,活塞沿着该测量轴线移动以排出流体脉冲而不干扰仪器的光学对准功能。 在旨在由患者家庭使用的第一实施例中,在包含凹面镜的曲率中心的平面中使用凹面镜和目标光源的对准引导系统向患者提供对准图像以引导自对准。 在凹面镜的焦点处的红外光源照射凹面镜,使得准直光束沿着测量轴被反射并被物镜聚焦。 当物镜的焦点与角膜的曲率中心一致时,红外光通过系统反射并且从测量轴正交地转移到被屏蔽的检测器,以被动地监视对准并触发活塞的释放 。 一般医师的办公用途的第二实施例包括目镜代替凹面镜,用于允许操作者在对准期间沿着测量轴线观察。
    • 6. 发明授权
    • Device for making opthalmic measurements and method
    • 用于进行眼科测量和方法的装置
    • US4055900A
    • 1977-11-01
    • US619083
    • 1975-10-02
    • Bernard GrolmanWilliam Richards
    • Bernard GrolmanWilliam Richards
    • A61B3/11G02C13/00A61B3/10
    • G02C13/005
    • A device for use in the art of fitting lenses to spectacle frames wherewith ophthalmic measurements are applied directly to frames selected by patients. A frame without lenses is adjusted to fit the patient, the measuring device is then applied to the frame and the whole placed upon the face. Horizontal and vertical measurements of distances from lateral and inferior points on the frame rims to a desired location of lens optical center relative to pupil are made for each eye and these measurements are forwarded to the lens finishing shop for edging and fitting of the lenses.
    • 用于将镜片装配到眼镜架的技术中的装置,其中眼科测量直接应用于由患者选择的框架。 调整没有镜片的框架以适应患者,然后将测量装置施加到框架并将整体放置在脸部上。 对于每个眼睛进行水平和垂直测量,其中,每个眼睛都进行水平和垂直的测量,其距离框架边缘上的横向和下部点到镜片光学中心的所需位置,并将这些测量结果转发到镜片整理车间以进行镜片和边缘的装配。