Optical Trial frame AF-100

Trial trame AF-100 Main Technical Indexes 1.Range of PD adjustments: PD of both eyes: 48 80mm left or right PD: 24 40mm Minimum graduated value: 1mm 2.Dividing disc axial graduation: Left dividing disc: 120 00 135° Right dividing disc: 45 180 60° "Axial graduation increases along the lens frame axis counter clockwise,and the graduated distance is 5°. " 3.Inner diameter of lens frame: ?32.5mm 4.Number of lens which can be inserted into left or right lens frame simultaneously: 4 pieces 5. Degree of lens rotating around optical axis in the lens frame:360° 6. Nonparallelism between lens´ optical axis and lens frame´s geometric axis: ≤2.50 7. Non-concentricity between lens´ optical center and lens frame geometric center: ≤0.5mm 8. Displacement of lens in relation to position of lens frame geometric center: ≤0.3mm 9. Range of nose rest adjustment: vertical adjustment range: 0 18mm Lateral angle range: 0 4mm 10. Range of left or right lens frame leg´s length adjustment: 98 135mm 11. Maximum interval between left and right lens frame legs: 200mm 12. Weight:65g