China 266 232 Metal Plastic Eye Ophthalmic Optical Trial Lens Set, Find details about China Trial Lens Set, Optical Trial Lens Set from 266 232 Metal Plastic Eye Ophthalmic Optical Trial Lens Set
optical optometry instrument Trial lens set 232
Specifications:
1; Full aperture trial lens 232 pieces included
2.Metal handle rim
3.Removable plastic tray
4.Black ABS covered carrying case with aluminum framework.
5. Here are two types :full- aperture lens for metal rim ,and platic of the samll aperture , the diametern is 26mm
or 22mm .
Parameters:
Leather/aluminum case and metal/plastic rim available
Sphere: | 80 pairs |
Cylinder: | 40 pairs |
Prism: | 14 pieces |
Accessories: | 13 pieces |
Trags dimensions: | 312mm (L) × 532mm (W) × 34mm (H) |
Weight: | 5.6kg |
Range of measurement | Binocular papillary distance: 45~82MM |
Left or right papillary distance: 22.5~41MM | |
Absolute indication error | ≤0.5MM |
Absolute dissymmetrical error | ≤0.5MM |
Absolute rounding error | ≤0.5MM |
Distance of target | 30CM~∞ |
Distance of target | 30CM~∞ |
Power source | Voltage: DC3V |
Specification: 5#AA battery | |
Quantity: 2 pieces | |
Time for automatic shut-off | About 1 minute after stopping operation, or turn it off manually |
Size | 22.1*16.6*6.3CM |
Weight | 0.68KG |
Measure Range : | 3mmHg~70mmHg |
Relative moisture | ≤95% |
Ambient temperature: | -20ºC~+55ºC |