1 • Pupil distance adjustment range: binocular pupil distance range: 48 – 80 mm; left and right pupil distance: 24 – 40mm each; the minimum scale value: 1mm.
2 – Axis scale: left scale: 130°~ 0°~ 120 °;right scale: 50°~ 180 °w 60°.The axis scale increases anticlockwise along the axis of the frame, and the marking interval is 5°
3 • Effective internal aperture of frame: 4 33.5mm.
4 • The number of lenses that can be inserted into the left and right frames: 5 (the front is3andthebackis
5 • Rotation degree of optical axis of lens in inner ring of frame: 360•
6 • The nonparallelism between the optical axis of the lens and the geometric axis of the frame: ≤2.5°
7. The difference between the optical center and the geometric center of the lens: ≤ 0.5mm.
8 • Displacement of the lens relative to the geometric center of the frame: ≤0. 3mm.
9 • Adjustment range of nose pad: adjustable length: 0-25mm;angle: arbitrary angle.
Adjustable length range of the left and right frame leg: 0-30mm.
11 – Weight: 53g.
Children Frame/Trial Frame, Optometry Equipments
UTF4880
• 1 – Knob for pupil distance adjustment
• 2 – Pupil distance ruler
• 3 – Knob for pupil height adjustment
• 4 Replaceable, adaptive rotary nose pad
• 5 Front and back insert frame
• 6 – Knob for axis position adjustment
• 7 ~ Axis scale
• 8 – Knob for the front inclination angle adjustment
• 9 – Length adjustment for frame 1eg
• 10 – Eye distance scale
