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Optotype Presenting Apparatus
专利权人:
发明人:
申请号:
EP08165166.3
公开号:
EP2044878B1
申请日:
2008.09.25
申请国别(地区):
EP
年份:
2015
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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