AA Battery Ophthalmoscope & Otoscope
Ophthalmoscope:
Otoscope:
Ophthalmoscope:
| Aperture | Dimension of Aperture | Dimension od Image | Angle of View |
| Red-free filter | Φ2.4 | Φ2.3 | 7°44′24″ |
| Large spot | Φ2.4 | Φ2.3 | 7°44′24″ |
| Small spot | Φ1.2 | Φ1.15 | 3°52′28″ |
| Hemispot | Φ2.4 | Φ2.3 | 7°44′24″ |
| Optical Specifications | |||
| Illumination of light spot | Light spot be apart from reflector 150mm≥85lx | ||
| Diopter | 0D, ±1D,±2D,±3D,±4D,±6D,±8D,±10D,±15D,±20D | ||
| Aperture | red-free filter, large spot, small spot, hemispot | ||
| Rated voltage | AA alkaline or Ni-MH batteries | ||
| Electrical Safety Standard | GB9706.1, internal power equipment | ||
| Environment requirement | |||
| Use Condition | Environment temperature +10ºC~+40ºC | ||
| Relative humidity 30%~75% | |||
| Atmospheric pressure 700 hPa~1060hPa | |||
| Shipping and stockage | Environment temperature -40ºC~+55ºC | ||
| Relative humidity 10%~90% | |||
| Atmospheric pressure 500 hPa~1060hPa | |||
Otoscope:
| Optical specifications | |||
| Illumination form | Fiber optical transmit light | ||
| Illumination of light spot | The brightness of the tip is ≥ 1000lx | ||
| Magnification of light spot | 2.5x | ||
| Specification of ear-specula | |||
| Diameter of ear-specula | 2.5mm, 4.0mm | ||
| Specification of Insufflations Port | |||
| Insufflations Port | Yes | ||
| Electrical specifications | |||
| Type of bulb | T4954 (2.5V, 1.6W) | ||
| Rated voltage | 2AA alkaline or 2 Ni-MH battery | ||
| Electrical safety standard | GB9706.1 internal power source | ||
| Environment requirements | |||
| Use Condition | Environment temperature +10ºC~+40ºC | ||
| Relative humidity 30%~75% | |||
| Atmospheric pressure 700 hPa~1060hPa | |||
| Shipping and stockage | Environment temperature -40ºC~+55ºC | ||
| Relative humidity 10%~90% | |||
| Atmospheric pressure 500 hPa~1060hPa | |||