Features
>> Multi-coated optics
>> A single control sleeve for vergence and rotation.Comfortable operation.
>> Totally dustproof, maintenance free
>> Metal handle-for long lasting operation
>> Superior streak quality enables easier and quicker refractions-even in patients with small pupils
>> The powerful, bright bulb ensures easy recognition of neutralisation.
>> The lowest position gives a divergent beam.
1. 3.5V Coaxial Ophthalmoscope.
Coaxial Ophthalmoscope enable easy entry into undilated pupils for more accurate diagnoses,
while two filter selections provide optimum light levels for entering healthy eyes and those with cataracts
2. 3.5V Streak Retinoscope.
3.5V Streak Retinoscope is designed exclusively to determination of the refraction of the eye. The streak retinoscope is found by
most practitioners to be easy to use, fast, accurate, and especially valuable in determining the axis of astigmatism.
Specifications
| 3.5V Coaxial Ophthalmoscope | |
| Diopter | 0D, ±1D, ±2D, ±3D, ±4D, ±5D, ±6D,±7D, ±8D,±9D, ±10D, +12D, ±15D, ±20D,-25D,+40D |
| Aperture | Large aperture,Small aperture,Micro aperture,Slit aperture,Cobalt blue aperture,Fixation aperture |
| Filter | Red free filter / Polarizing filter |
| Bulb | 3.5 V 2.7 W |
| Operation mode | Intermittent, On-time should not exceed 2 mins with Off-time not less than 5 mins |
| 3.5V Streak Retinoscope | |
| Rotation | ≥190° |
| Distance from the device to which the real imagea of the lamp filament is adjustable | ≤450 mm |
| Distance from the device to which the virtual imagea of the lamp filament is adjustable | ≤450 mm |
| Length of streak imageb | ≥30 mm |
| Width of streak imageb | ≤1.5 mm |
| Deviation from linearity of the streak image at the focusb | ≤2 mm |
| Rotation decentring of centre of streak imageb | ≤10 mm |
| A All distances are measured from the light exit of the device | |
| B When focus at 500 mm | |
| Electrical Specification | |
| Bulb | 3.5 V 2.7 W |
| Operation mode | Intermittent, on-time should not exceed 2 min with off-time not less than 5 min |
