Eye Optometry Lens Frame PD 54-70Mm Adjustable Optical Trial Lens Frame ｜Eye Test Glasses Optometry Lens Frame for Test Optician, Eye Protection Accessories

Optometric Universal Lens Trial Frame is suitable for eyesight examination in spectacles shops, department of ophthalmology in hospitals, schools and enterprises.Product parametersProduct Name: Optical Trial Lens FrameFeature:1.Pupil distance adjustment range: binocular pupil distance range:54-70mm; the minimum scale value:1mm.2.Axis scale:left and right scale:165°~0°~180°~25°.The axis scale increases anticlockwise along the axis of the frame, and the marking interval is 5°.3.Effective internal aperture of frame:8mm.4.The number of lenses that can be inserted into the left and right frames:4 (the front is 3 and the rear is 1).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:5mm.8.Displacement of the lens relative to the geometric center of the frame:0.3mm.9.Adjustment range of nose pad:the length can be increased by 2mm; width:2mm; angle:0°~ 180°.10.Adjustable length range of the left and right frame leg:140~170mm.Notice:Regarding color: Product pictures are photographed in real objects, but due to light display and other reasons, there may be a little color difference, please understandRegarding size: The product size is artificially measured, and there may be an error of 1-2cm, please understand

• Pupil distance adjustment range: binocular pupil distance range:54-70mm; the minimum scale value:1mm
• Axis scale:left and right scale:165°~0°~180°~25°.The axis scale increases anticlockwise along the axis of the frame, and the marking interval is 5°
• Effective internal aperture of frame:Φ8mm.The number of lenses that can be inserted into the left and right frames:4 (the front is 3 and the rear is 1)
• Rotation degree of optical axis of lens in inner ring of frame:360 °.The nonparallelism between the optical axis of the lens and the geometric axis of the frame: ≤2.5 °
• After-sales service: If you have any questions, please feel free to contact us by email and we will reply within 24 hours