1. Elegant design of butterfly-shape appearance
2. Capable of checking up all-sided visual functions, precise and comfortable in measurement
3. Exquisite manufacturing technique, with comfortable feel
4.This device is applicable to ophthalmology department of hospitals and spectacle stores for precision measurement of visual functions such as myopia, hyperopia, astigmatism, eyesight balance, heterophoria, stereoscopic vision and eyesight amalgamation
5.Three color options:White or Black or gray
Specifications
Sphere power Range | +16.75D to-19.00D, with minimum reading 0.25D or 0.12D (when+0.12D auxillary lens or optional ±0.12D lens in use) +26.75D to-29.00D (when optional ±10.00D lens is in use) |
Cylinder power range | 0 to-6.00D, with minimum reading 0.25D or 0.12D (when auxiliary lens is in use) 0 to-8.00D (when-2.00D auxiliary lens is in use) |
Astigmatic axis scale | 0 to 180 in 5 steps |
Cross cylinder | ±0. 25D, reversal type (synchronized with astigmatic axis) ±0. 50D optional |
Rotary prism | 0 to 20ΔD in1ΔD step |
PD adjustment | 16mm backward and forward |
Forehead rest adjustment | 2.0 mm |
Convergence | The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the comeas. (2mm each for right and left inward) Interpupillary distance enabling convergence=57mm to 80m |
Corneal distance device | 2mm forward and 5mm backward from standard plane: with scale |
Effective field of view | 19mm |
Processing time
According your order list. we will supply delivery time .
Commonly is 5-7 work days after we confirm payment
Shipping time
By Express : 3-7 days . Door to door service
By Air : 3-7 days . (the goods arrival at your local air ports )
By sea : 30-40 days (the goods arrival at your local sea ports )
PS : by air or by sea, if you need door to door service, please tell us . we will help you checking the extra door to door cost.
one year
For ensuring all the items are in good quality, we will test all products before the packages were sent out. Once the machine have some question, please don't worry. kindly send us some images of the situation , Video and machine series, and explain the question in where . we will supply solution to you deal soon.
If in Warranty, some spare parts broken in the Use. kindly supply picture or video , and machine series number .
We will send the spare parts by express to you soon.. and we bear express cost .
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