Professional Optical Eye Optometry Test Trial Lenses Frame Universal Adjustable

Description :

- High Quality Professional Optometry Titanium Optical Trial Lens Frame.
- Holds up to 8 lenses (4 pairs), with standard diameter of 38 mm.
- Easy PD adjustment for both eyes with PD Adjustable range: 48~80mm.
- Easier to use and easier to wear Easily changeable cylinder axis .



1. Range of PD adjustments: PD of both eyes: 48~80mm; Left or right PD: 24～40mm; Minimum Calibration Value: 1mm.
2. Axial calibration on each disc: Left disc: 120°~0°~135°, Right disc: 45°~180°~60°, Axial calibration increases counter clockwise along the lens frame axis, and the calibration distance is 5.
3. Inner diameter of lens frame: Φ32.5mm.
4. The Number of lens which can be inserted into left or right lens frame simultaneously: 4 pieces.
5. Degree of lens rotating around optical axis in the lens frame: 360°.
6. Non-parallelism degree between lens optical axis and lens frames geometric axis: ≤2.5°.
7. Non-concentricity between lens optical center and lens frame geometric center: ≤0.5mm.
8. Displacement of lens in relation to position of lens frame geometric center: ≤0.3mm.
9. Range of nose pad adjustment: Length: 0~14mm; Angle: 0°~30°.
10. Range of left or right lens frame leg\'s length adjustment: 98mm～135mm.
11. Maximum interval between left and right lens frame legs: 200mm.
12. Weight: 72g




XA.LL.880 Shipping weight : 3oz (Net Weight : 2.65) - 8 FR Envelope