| 摘要 |
PURPOSE: A device for measuring eyesight is provided to correctly measure eyesight by including a measuring eyesight input unit and an eyesight measurement display unit. CONSTITUTION: A key matrix(210) includes a plurality of input keys on which numbers showing eyesight are displayed. A transmission controller(220) recognizes and controls signal from the key matrix. A receiver(110) receives the signal from the transmission controller. A reception controller(120) recognizes and controls the received signal. A display unit displays signs for the eyesight to be measured based on the signal from the reception controller.
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