TF-TP Trial Frame

Usages
It is suitable for eyesight examing in spedtacles shops,department of ophthalmology in hospitals,schools and enterprises.

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 : 0.06kg

This trail frame have 5 different fixed PDs
58mm, 60mm, 62mm, 64mm, 66mm