Professional Adjustable Optical Optic Eye Optometry Test Trial Lenses Frame,Optometry Optician Trial Lens
Professional Adjustable Optical Optic Eye Optometry Test Trial Lenses Frame,Optometry Optician Trial Lens
Features & Specifications: Range of PD adjustments: PD of both eyes: 48~80mm; Left or right PD: 24?40mm; Minimum Calibration Value: 1mm. 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. Inner diameter of lens frame: ?32.5mm. The Number of lens which can be inserted into left or right lens frame simultaneously: 4 pieces. Degree of lens rotating around optical axis in the lens frame: 360°. Non-parallelism degree between lens optical axis and lens frames geometric axis: ?2.5°. Non-concentricity between lens optical center and lens frame geometric center: ?0.5mm. Displacement of lens in relation to position of lens frame geometric center: ?0.3mm. Range of nose pad adjustment: Length: 0~14mm; Angle: 0°~30°. Range of left or right lens frame leg's length adjustment: 98mm?135mm. Maximum interval between left and right lens frame legs: 200mm. Package included: 1x Trial Lens Frame
Product Features
- 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