自覚式検眼装置
- 专利权人:
- 株式会社トプコン
- 发明人:
- 窪田 篤司,加藤 健行
- 申请号：
- JP2007087215
- 公开号：
- JP5016348B2
- 申请日:
- 2007.03.29
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a subjective optometric apparatus allowing a subject to confirm an optotype corresponding to visual acuity value before or after visual acuity value which corresponds to an optotype displayed on an optotype presentation part.
SOLUTION: When a Landolt ring 11b corresponding to maximum or minimum visual acuity value is selected by operation of a mouse 33 from among respective Landolt rings 11b including a plurality of groups of optotypes 11c so as to display it on the optotype presentation part 13, the respective Landolt rings are displayed together with the selected Landolt ring 11b on an optotype display column 30 of a display part 25 when the respective Landolt rings 11b correspond to a visual acuity value before or after the visual acuity value of the Landolt ring. When the Landolt ring 11b corresponding to a visual acuity value either before or after the visual acuity value of the selected Landolt ring 11b is present, the corresponding Landolt ring is displayed.
COPYRIGHT: (C)2009,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
