Product Features:
view tester
Business Terms:
Port: Shanghai
Minimum Order Quantity: 1 Piece/Pieces
Payment Terms: L/C,T/T,Western Union
Contact Supplier
view tester
Port: Shanghai
Minimum Order Quantity: 1 Piece/Pieces
Payment Terms: L/C,T/T,Western Union
Contact Supplier
| Features | |||
| ·Top-grade quality View Tester. | |||
| ·Elegant design of butterfly-shape appearance | |||
| ·Capable of checking up all-sided visual functions, precise and comfortable in measurement | |||
| ·Exquisite manufacturing technique, with comfortable feel | |||
| ·High grade plated-film used in all optic lenses | |||
| ·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 | |||
| ·Two colors choice | |||
| Specification: | |||
| Sphere powers range: +16.75D to-19.00D, with minimum reading 0.25D or 0.12D | |||
| (When +0.12D auxiliary lens or optional±0.12D lens is 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) | |||
| Rotary prism: 0 to 20D in 1D step | |||
| Interpupillary adjustment: 48mm to 80mm in 1mm step (right and left synchronized) | |||
| Forehead rest adjustment: 16mm backward and forward | |||
| Convergence: The optical axes of the lenses are aligned at a distance of 400mm from the vertexes of the corneas (2mm each for right and left inward) | |||
| Interpupillary distance enabling convergence=57mm to 80mm | |||
| Corneal distance device: 2mm forward and 5mm backward from standard plane; with scale | |||
| Effective field of view: 19mm | |||
| Weight: 5kgs | |||
| Size: 291—323×315×85 | |||
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