Optical vision effect testing apparatus
A testing device and visual technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as general fatigue
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[0017] Embodiment: the structure of the present invention is as figure 1 , figure 2 and image 3 As shown, it consists of a test car 1, a special track 2 for the test car to run, and a test board 3. The test car 1 is located on the special track 2. The test car 1 is equipped with a head and neck positioning device, and the test board 3 is located on the track 2. At the other end of the track 2, there is an angle between the surface of the test board 3 and the height of the test board 3 is different from the height of the tester. There are 2 patterns with background colors on the test board 3, and the two patterns are up and down. Arrangements, patterns are different, and sizes are different. One pattern is composed of 4 identical squares composed of concentric circles, and a horizontal line passing through the center of the circle is set on the pattern. There are Cartesian coordinates, and the origin of the coordinates is the center of the concentric circles.
[0018] The ...
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