Description
| Specifications： | |||||||
| Display | 21.5 inches | ||||||
| The highest brightness | 300 cd/m2 | ||||||
| Maximum contrast | 2000:1 | ||||||
| Chart versions |
Letter
charts/Kid charts/Red green color blindness/E charts/C charts/WORTH four dot
charts/Numeric charts/Cross charts/ Contrast sensitivity charts/Red green charts/Cellular charts/Markov rod charts/Astigmatism etc. |
||||||
| Max resolution ratio | 1680x1050@60HZ | ||||||
| Screen type | TFT | ||||||
| Signal response time | 5ms | ||||||
| Visual size | 476X268mm | ||||||
| Visual angle | H:170/V:160 | ||||||
| Using distance | 1 ~ 6.5m adjustable | ||||||
| Visual acuity recording method | Decimal, imperial fraction recording | ||||||
| Kinds of charts | More than 300 | ||||||
| Remote control distance | The farest distance is≥8m | ||||||
| Screen pitch | 0.282mm | ||||||
| Shield | Horizontal, vertical, single character | ||||||
| Power supply | Input: AC110~220V50/60Hz | ||||||
| Power consumption | 60W | ||||||
| Size of machine | 54.3cm(L)*43cm(W）*5cm | ||||||
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