Trial Frame - TF 4880 A

$25.16

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02281290

Availability: In Stock

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Available for 4 pieces trial lenses to be inserted at each side

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9 other products in the same category:

Black soft ear rests of high skill
Soft nose pad option A, B or C
Available for 4 pieces trial lenses to be inserted at each side

USAGES:

It is suitable for eyesight examination in spectacles shops, department of ophthalmology in hospitals, schools and enterprises.

FEATURES:

Adjustable range of each eye: 25mm~40mm;

PD, Height of eyes and ears are ajustable.

MAIN TECHNICAL INDEXES

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 frame's 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

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