| Customization: | Available |
|---|---|
| Customized: | Non-Customized |
| Certification: | CE |
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What is the detail of our China Auto Refractometer?
Application
This product is used for preliminary determination of adults' or children'srefractive error. The result of this product is used for vision screening only. It cannot replace eye exam.
Specifications
1. Basic information
1.1. Dimensions: 200mm×80mm×270mm
1.2. Electrical safety: Battery charger (class I), main unit (internally powered)
1.3. Laser safety: Laser (class I), wavelength 850nm, power <250μW
2. Performance
|
Item |
Range |
Interval |
Tolerance |
|
|
Spherical (S) |
Myopia Mode |
-9.00D~ +2.50D |
0.25D |
±0.50D or ±20% (whichever is greater) |
|
Normal Mode |
-6.00D ~ +8.00D |
|||
|
Cylindrical(C) |
-3.00D~0.00D |
0.25D |
±0.50D or ±20% (whichever is greater) |
|
|
Axis(A) |
0°~180° |
1° |
±5° |
|
Principle
The working principle of this vision screener is based on Hartmann-Shack wavefront sensor. The internal light source is focused to the retina by the refractive media of the eye and reflected back to the device. The diopter of the patient is obtained through calculation of the detected signal
Structure
1: Viewfinder 2: Lightemissionwindow 3: Distance Sensor 4: Operation buttons
5: IR link to printer 6: Battery charger socket 7: Display screen 8: Stand
More feature of our digital Auto Refractometer
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