Universal Trial Frame Optical Lens Frame Low Price UTF-T4880

Universal Trial Frame

UTF-T4880

Main technical indicators

1.Pupil distance adjustment range: binocular pupil distance range: 48 - 80 mm; left and right pupil distance: 24 - 40 mm; the minimum scale value: 1mm.
2.Axis scale: left scale: 130 °~ 0 °~ 120 °; right scale: 50 °~ 180 °~ 60 °. The axis scale increases anticlockwise along the axis of the frame, and the marking interval is 5°.
3.Effective internal aperture of frame: Φ 33.5mm.
4.The number of lenses that can be inserted into the left and right frames: 5 (the front is 3 and the back is 2).
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 axisof the frame: ≤ 2.5 °.
7.The difference between the optical center and the geometric center of the lens: ≤ 0.5 mm.
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. 10.Adjustable length range of the left and rightframe leg: 0~30mm.
11.Weight: 53g.

Attention

1.This product should be ventilated and dried indoors to prevent moisture.
2.This product has been precisely adjusted before leaving the factory.Please do not disassemble it at will to avoid affecting the measurement accuracy.
3.This product is mainly composed of plastic parts.Strong vibration or impact should be avoided to prevent the damage or deformation of parts, thus affecting the service life. 4.During operation and adjustment, excessive force shall be avoided to damage parts orcause cracks.
5.Axis scale and pupil distance ruler should be kept clean. If there is dust, stains, etc., 
please wipe it with clear water.Please do not wipe with alcohol or other chemical liquid.