首页> 外国专利> OPTOMETRIC APPARATUS INCLUDING LENS CHAMBER UNITS, NEAR DISTANCE ROD, OPTOTYPE UNIT AND HOLDING UNIT

OPTOMETRIC APPARATUS INCLUDING LENS CHAMBER UNITS, NEAR DISTANCE ROD, OPTOTYPE UNIT AND HOLDING UNIT

机译:包括透镜腔室单元,近距离杆,视力单元和保持单元的视光设备

摘要

PURPOSE: An optometric apparatus is provided to achieve improved accuracy of test by permitting a near distance sight chart to be movable in sideways. CONSTITUTION: An optometric apparatus comprises a pair of lens chamber units(5) each of which has a test window(5a); a near distance sight rod(2) extended forward from the test windows; a first optotype unit(3) having a near distance sight chart, wherein the first optotype unit is arranged on the near distance sight rod; and a holding unit for holding the first optotype unit in such a manner that the first optotype unit is movable nearly in parallel to the transverse direction interconnecting respective centers of both test windows.
机译:目的:提供一种验光设备,通过允许近距离视力表可在侧面移动来提高测试精度。组成:一种验光设备,包括一对镜室单元(5),每个镜室单元都有一个测试窗口(5a);从测试窗口向前延伸的近距离观察杆(2);具有近距离瞄准镜的第一视标单元(3),其中第一视标单元布置在近视瞄准镜杆上;保持单元,其以如下方式保持第一视标单元:使得第一视标单元可几乎平行于横向方向移动,以将两个测试窗口的各个中心互连。

著录项

  • 公开/公告号KR20040058064A

    专利类型

  • 公开/公告日2004-07-03

    原文格式PDF

  • 申请/专利权人 NIDEK CO. LTD.;

    申请/专利号KR20030096492

  • 发明设计人 HOSOI YOSHINOBU;

    申请日2003-12-24

  • 分类号A61B3/103;

  • 国家 KR

  • 入库时间 2022-08-21 22:48:35

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