UTF-4880
Feature
· Adjustable PD range from 48mm to 80mm, with 1mm precision
· Supports 5 lenses per eye, including front and rear slots for testing flexibility
· 360° axis rotation, with 5° scale intervals for accurate astigmatism alignment
· Adaptive nose pad and temple length, customizable for different face shapes
· Optical-geometric misalignment ≤ 0.5mm, ensures precise visual axis alignment
· Lightweight metal frame, only 53g, designed for long-time comfortable wear
The UTF4880 is a high-precision metal trial frame designed for professional optometry applications. With full axis control, adjustable parts, and a comfortable lightweight build, it provides a stable and accurate platform for subjective refraction
Trial Frame
| Pupil distance adjustment range: | binocular |
|---|---|
| Pupil distance range: | 48 – 80 mm |
| Left and right pupil distance: | 24 – 40 mm each |
| The minimum scale value: | 1 mm |
| Axis scale: | left scale：: 130 °~ 0 °~ 120 °;right scale: 50 °~ 180 °w 60 ° |
| The axis scale: | increases anticlockwise along the axis of the frame |
| The marking interval: | 5° |
| Effective internal aperture of frame: | φ 33.5mm |
| The number of lenses that can be inserted into the left and right frames: | 5 (the front is 3 and the back is 2) |
| Rotation degree of optical axis of lens in inner ring of frame: | 360° |
| The nonparallelism of the optical axis of the lens and the geometric axis of the frame: | ≤2.5° |
| The difference pf the optical center and the geometric center of the lens: | ≤ 0.5mm |
| Displacement of the lens relative to the geometric center of the frame: | ≤0. 3mm |
| Adjustment range of nose pad: | length: 0~25mm;angle: arbitrary angle |
| Adjustable length range of the frame leg: | 0~30mm |
| Weight: | 53g |
