1.Black soft ear rests of high skill.
2.Soft nose pad option A, B or C.
3.Available for 4 pieces trial lenses to be inserted at
4.USAGES:It is suitable for eyesight examination in spectacles shops,
department of ophthalmology in hospitals, schools and enterprises.
5.Adjustable range of each eye: 25mm«?40mm; PD, Height of eyes
and ears are adjustable.
Range of PD adjustments¬?PD of both eyes¬?48«?80mm¬?Left or
right PD¬?24«?40mm¬? Minimum Calibration Value¬?1mm.
Axial calibration on each disc¬?Left disc¬?120°«?0°«?135°¬?
Right disc¬? 45°«?180°«?60°¬?Axial calibration increases
counter clockwise along the lens frame axis, and the calibration
distance is 5.
Inner diameter of lens frame¬?Φ32.5mm
The Number of lens which can be inserted into left or right lens
frame simultaneously¬? 4 pieces
Degree of lens rotating around optical axis in the lens frame¬?
Non-parallelism degree between lens’ optical axis and lens
frame’s geometric axis¬?≤2.5°
Non-concentricity between lens’ optical center and lens frame
Displacement of lens in relation to position of lens frame
Range of nose pad adjustment: Length¬?0«?14mm¬?Angle¬?0°«?30°
Range of left or right lens frame leg’s length adjustment: 98mm«?
Maximum interval between left and right lens frame legs¬?200mm