Optometry Instrument Hand Held Auto Refractor Non-Contact And Non-Invasive
Features:
1. Non-contact and non-invasive:
The light power is safe for eyes; There is 35cm(14 inches)between the instrument and the eyes.
2. Child-friendly:
Little cooperation is required, suitable for infants and those who have a language barrier.
3. Speedy Inspection:
One Key operation to complete the automatic detection of two eyes:
4. Accurate Result:
The advanced optical detection principle provides an accurate result: including myopia, hyperopia, astigmatism, axial and anisometropia.
5. Comprehensive detection modes:
Infant mode is specially designed for infantsl Myopia model is customized for myopia people and even high myopia people (HAR-880 only); Adult mode is suitable for all adults.
6. Easy targeting:
Luminant cross-shape facilitates the targeting for operator.
7. Ultrasonic distance measurement:
Automatically monitor the distance with audiable and visual hint.
8. Printer:
Thermal printer is connected by infrared.
Technical Specification | |||
Model | HAR-880 | ||
Mode | Infant mode | Adult mode | Myopia Mode (HAR-880 only) |
Sphere range | -6.0D~+8.0D | -6.0D~+8.0D | -9.0 to +2.0D |
Sphere interval | 0.25D/0.1D | 0.25D/0.1D | 0.25D/0.1D |
Sphere tolerance | ±0.5D | ±0.5D | ±0.5D |
Cylinder range | -3.0D to +3.0D | -3.0D to +3.0D | -3.0D to +3.0D |
Cylinder interval | 0.25D/0.1 | 0.25D/0.1D | 0.25D/0.1D |
Cylinder tolerance | ±0.5D | ±0.5D | ±0.5D |
Axial of astigmatism range | 1°~180° | 1°~180° | 1°~180° |
Axial of astigmatism interval | 1° | 1° | 1° |
Axial of astigmatism tolerance 0.25D-1.00D, 1.25D-3.00D | ±10°,±5° | ±10°,±5° | ±10°,±5° |
Working distance Adult/infant mode , Myopia mode (HAR-880 only) | 335±10mm,268±10mm | Confidence level | 10 |
Output of laser radiation | 150 to 200um | Wavelength | 850±20nm |
Data acquisition time | 2s/eye | Battery Voltage | d.c. 11.1V |
Battery life | More than 6 hours of continuous usage | ||
Low-battery warning | Indicates 15 minutes usage remains | ||
Distance measurement | Automatic, with audible and visual hint | ||
