Optometry Efficient Instrument Multifunctional Trial Frame
Multifunctional Trial Frame UTF-T4880
1.Pupil distance knob
2.Pupil distance ruler
3.Pupil height knob
4.Replaceable, adaptive nose pad
5.Lens slot
6.Axis position knob
7.Axis scale
8.Front inclination angle knob
9.Adjustable frame leg length
10.Eye distance scale
Main Technical Indicators
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 33.5 mm.
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 axis of 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: ≤0.3 mm.
9.Adjustment range of nose pad: adjustable length: 0~25 mm; angle: arbitrary angle.
10.Adjustable length range of the left and right frame leg: 0~30 mm.
Instructions For Use
1. Pupil distance adjustment
(1) Rotate the left and right pupil distance knobs respectively according to the pupil distance of the patient.
(2) According to the "▽" instruction, the pupil distance can be adjusted to the required pupil distance position.
2. Pupil height adjustment
(1) Wear trial frame and observe the pupil center of the patient.
(2) Pull out the pupil height adjustment knob (the force should not be too large when pulling out).
(3) Turn the knob left and right to move the nose support up and down until the optical center of the trial wearing frame is consistent with the center of the pupil.
(4) After adjustment, push the knob to fix and lock it.
3.Nose pad adjustment
1.Nose pad is replaceable.
2.When wearing,it can be automatically adjusted to the appropriate position according to the height of the nose bridge of the subject.
4.Front inclination angle adjustment
1.Rotate the front inclination angle knob according to the ear height of the subject.
2.The distance between the measured cornea and the posterior top focus of the trial frame lens is the current distance of eye from the back vertex of the lens.
5.Frame leg length adjustment
1.Adjust the frame leg length according to the face size of the subject.
2.Measure the frame leg length according to the degree of the frame leg.
