視力障害疾患検出機
- 专利权人:
- コレクトスコープ有限会社
- 发明人:
- 秋元 東洋男
- 申请号：
- JP2006126735
- 公开号：
- JP4915689B2
- 申请日:
- 2006.04.03
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a desk-top inspecting machine of an optically simple configuration, which can detect visual impairment disorder.
SOLUTION: A visual acuity chart is set in a box, which can be seen through a peephole provided on the box. A circular plate equipped with a plurality of lenses with different power is provided between an eye to be examined and the visual acuity chart. Any lens can be selected by rotating the circular plate from the outside of the box. A pinhole plate is provided so as to be freely put in/out between the circular plate with lenses and the eye to be examined.
COPYRIGHT: (C)2008,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
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