5 pcs Grey/Color Optical Lens Trial Frame Eyeglass Optometry TF-C

$23.29
In stock
SKU
JFEGE00121
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Product Location:China
Product Condition:New
Seller:Joyfay
5 pcs Grey/Color Optical Lens Trial Frame Eyeglass Optometry TF-C is available to buy in increments of 1

A package of five gray or colored optical lens trial frames used when determining required refractive power of the lens that is to be used to correct one’s vision.

   Determining the diopter of a person who has bad vision usually involves putting on a trial frame on that person’s eyes and changing between various lenses that fit into the trial frame. This, combined with specialized vision tests allows the optician to check whether that is the right diopter. Frames such as these can be seen in optic stores all around the world. They are prized because of their high adjustability and versatility. 

    The TF-C is a five-piece package of high-quality, durable lens trial frames, which provide high adjustability for a few categories relevant to the optician when measuring. The frames allow more than just switching lenses. They can be rotated, thus determining whether a cylinder is required on the lenses. 

    All of the frames have adjustable PD range, which comes in up to 10 specifications:52mm, 54mm, 56mm, 58mm, 60mm, 62mm, 64mm, 66mm, 68mm, 70mm. We enable our customers to choose from the five specifications that are to be delivered, with the default specifications being 58 to 66mm. 

The frame also provides the possibility of rotating the lenses inside, around the optical axis, for full 360°. 

The dimensions of the package are 270mm x 185mm x 50mm, and each frame weighs 0.1kg. 

 

Specifications

PD Adjustable Range: 58 mm, 60 mm, 62 mm, 64 mm, 66 mm

Note: 5 default color specifications are: 58 mm (pink), 60 mm (green), 62 mm (yellow), 64 mm (blue), 66 mm (black)

5 default grey specifications are: 58 mm, 60 mm, 62 mm, 64 mm, 66 mm

Axial Calibration On Each Disc: 165° ~ 0 ° ~ 180 °  ~ 25 °, axis graduation line runs counter clockwise along axis graduation line of lens frame, with interval of graduation line being 5 °

Degree That Front Lens Rotates Around Optic Axis inside Lens Frame: 360 °

Range of Left or Right Lens Frame Leg Length Adjustment: 90 ~ 99 mm, Length of specification of trial frame increases 1 mm in turn

Dimension: 270 x 185 x 50 mm

Weight: 0.1 kg

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