ARP-400 17inch LED Chart projector
Advantages:
1. Vedio and audio playing function: It can play the vedio and audio files stored on SD card or an U disk.
2. Support extensible plug-in unit: Users can install their own test applications to the vison chart. This fuction satisfy customer’s desire of using user-defined tests.
3. We add 0.7 and 0.9 visus values to Decimal unit, which meets the common using habit of every user.
4. Equiped with a gravity- sensor. The vision chart can adjust the direction of the picture displayed on the screen. In this way the user can get a comfortable viewing angle no matter the vison chart is vertically or horizontally placed.
5. Gamma calibration fuction is realized in the contrast sensitivity test.
6. Real time optotype random display make the test accurate and reasonable.
