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专利权人:
株式会社ニデック
发明人:
金澤 雄一郎,小田 健史
申请号:
JP2007258167
公开号:
JP5165326B2
申请日:
2007.10.01
申请国别(地区):
JP
年份:
2013
代理人:
摘要:
An optotype presenting apparatus, by which red and green optotypes can be visually perceived independently by right and left eyes even if red filters and/or green filters (30G/R) have different wavelength transmission characteristics, comprises a color display (72), a unit (4) having a switch (4a) for selecting a test chart (100,130) including visual acuity and red-green binocular visual performance test charts, wherein the binocular test chart includes the optotypes and is used in the test performed with the filters in front of the eyes, a memory (76) storing color adjustment data in which at least one of color tones of the optotypes is varied with the characteristic of one of the filters, a unit for inputting a signal for selecting one of the data, and a unit controlling the display to display the selected chart and adjusting the tones by reading the selected data from the memory when the binocular test chart is selected.
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中国工程科技知识中心
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