发明名称 Optometric apparatus
摘要 An optometric apparatus (1) for subjectively examining a visual function of an examinee's eye, includes: a pair of right and left lens chamber units (5), each including a test window (5a) and optical elements to he changeably disposed in the test window; a support unit (6) which supports the lens chamber units so that the units may be converged; a near vision examination chart (2, 3) to be disposed at a changeable distance from the test window; and an illumination unit (7) which illuminates the near vision chart, the illumination unit being provided in each lens chamber unit.
申请公布号 US2004119944(A1) 申请公布日期 2004.06.24
申请号 US20030624647 申请日期 2003.07.23
申请人 NIDEK CO., LTD. 发明人 HOSOI YOSHINOBU
分类号 A61B3/028;A61B3/04;(IPC1-7):A61B3/10 主分类号 A61B3/028
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