1.Usages
It is suitable for eyesight examing in spedtacles shops,department of ophthalmology in hospitals,schools and enterprises.
2. Main technical indexes
1.PD adjustable range (9 specification): 54mm/56mm/58mm/60mm/52mm/64mm/66mm/68mm/70mm.
2.Axial calibration on each disc : 165°~0°~180°~25° axis graduation line runs counter clockwise along axis graduation line of lens frame, with interval of graduation line being 5°.
3.Degree that front lens rotates around optic axis inside lens frame : 360°
4.Range of left or right lens frame leg's length adjustment : 90mm~99mm,length of specification of trial frame increase 1mm in turn.
5.Weight :0.4KG
Always Quality Guarantee and lowest price !
PS : This trail frame have 10 different fixed PDs : 52mm 54mm, 56mm, 58mm, 60mm, 52mm, 64mm, 66mm, 68mm, 70mm
