HAR800 Handheld Auto Refractor (For Adults)
HAR880 Handheld Auto Refractor (For Adults and Infants)
Non-contact and Non-invasive, safe light source
User-friendly design, also suitable for infants
Easy targeting, fast inspection and one key operation
Ultrasonic distance measurement
Thermal Printer
Specification
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OPTICAL PARAMETERS |
Mode |
Infant mode |
Adult mode |
Myopia mode (HAR-880 only) |
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|
Sphere range |
-6.0D to +8.0D |
-6.0D to +8.0D |
-9.0D to +2.0D |
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Sphere intervals |
0.25D/0.1DP |
0.25D/0.1D |
0.25D/0.1D |
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Sphere tolerence |
土0.5D |
土0.5D |
±0.5D |
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Cylinder range |
-3.0D to +3.0D |
-3.0D to +3.0D |
-3.0D to +3.0D |
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Cylinder intervals |
0.25D/0.1D R |
0.25D/0.1D |
0.25D/0.1D |
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Cylinder tolerence |
±0.5D |
土0.5D |
土0.5D |
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Axis of astigmatism range |
1°to 180 |
1 °to 180° |
1 °to 180° |
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|
Axis of astigmatism intervals |
1° |
1° |
1° |
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Axis of astigmatism tolerence |
0.25D to 1.00D |
±10° |
±10° |
±10° |
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|
1.25D to 3.00D |
±5° |
±5° |
±5° |
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OIntervals are adjustable |
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PARAMETERS |
Working distance |
Adult/nfant mode |
335±10mm |
Confidence level |
10 |
|
Myopia mode (HAR-880 only) |
268±10mm |
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Output of the laser radiation |
150 to 200uw |
Wavelength |
850±20nm |
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|
Data acquisition time |
2s/eye |
Battery voltage |
d.c.11.1v |
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|
Distance measurement |
Automatic, with audible and visual hint |
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Battery life |
More than 6 hours of continuous usage |
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Low-Battery warning |
lndicates 15 minutes usage remains |
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