Optical Trial frame Metal

Color:Black +Silver
Size:15.50*6.00*3.50cm
Range of PD adjustments:PD of both eyes: 48 ~ 80mm;left or right PD: 24 ~ 40mm;minimum graduated value: 1mm
Dividing disc axial graduation:
Left dividing disc:120°~0°~135°
Right dividing disc:45°~180°~60°
Inner diameter of lens frame:32.5mm.
Degree of lens rotating around optical axis in the lens frame:360°
Nonparallelism between lens’optical axis and lens frame’s geometric axis:≤2.5°
Non-concentricity between lens’optical center and lens frame geometric center:≤0.5mm
Displacement of lens in relation to position of lens frame geometric center:≤0.3mm
Range of nose rest adjustment: Length:0 ~ 14mm; angle:0° ~ 30°
Range of left or right lens frame leg’s length adjustment:98 ~ 135mm.
Maximum interval between left and right lens frame legs:200mm
Material: lightweight metal or plastic

Package:
1x Trial Frame