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Vision Chart
Vision Chart
Product name : Vision Chart
Item : C901
Details :
Features:

1.Video and audio playing function available
2.User-defined testing applications available
3.Equipped with an accelerometer, the direction of icons can be adjusted automatically when the screen orientation changes
4.Gamma calibration function is realized in the contrast sensitivity test
5.The icons is in random orientation in E and C testing
6.Vectorial icon sets
7.Based on linux platform
8.Easily upgrade through U disk


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.

Specification: 
1.LCD: 17-inch XGA Panel
2.Brightness: >160 cd/m?2;
3.Opto Type: E,C,Letter,Number,Children
4.Distance: 2-7M ( step 0.1M ) < 80-260 inches (step 5 inches)>
5.Power: Input :110-230V AC ±10%, 50/60Hzm Output: 12V DC
6.Power consumption : 30 Watt(max)
7.Machine Dimension : 480mm x 430mm x 40mm, 2.0kg
8.Remote control : IR
9.Remote control battery : AAA
Test function :

Schober Test, Worth Test, Cross Grid, Coincidence Test, ETDRS, Stereo Test, Astigmatism Test, Fixation Point Test, Ishihara Test, Cross Cylinder, Red Green Panel, Red Green Balance, Contrast sensitivity
Mask :

Opposite color, Single mask, Horizontal mask, Vertical mask, Red/Green mask
Unit : 5-grade, Decimal, LogMAR, Snellen(ft), Snellen(M)