Açıklamalar

• Ophthalmic Vision Tester VT-10C China Manual Phoropter Features 1 Elegant design of butterfly-shape appearance 2 Capable of checking up all-sided visible functions, precise and comfy in dimension 3 Exquisite production technique, with blissful really feel 4 machine is relevant to ophthalmology department of hospitals and spectacle stores for precision measurement of visible applications such as myopia, hyperopia, astigmatism, eyesight balance, heterophoria, stereoscopic imaginative and prescient and eyesight amalgamation five color options:White or Black or gray Specifications Sphere power Range +16 to-19, with minimal reading zero or 0 (when+0 auxillary lens or optionally available ±0 lens in use) +26 to-29 (when optionally available ±10 lens is in use) Cylinder strength range 0 to-6, with minimal reading zero or zero (when auxiliary lens is in use) 0 to-8 (when-2 auxiliary lens is in use) Astigmatic axis scale 0 to a hundred and eighty in five steps Cross cylinder ±0 25D, reversal form (synchronized with astigmatic axis) ±0 50D optionally available Rotary prism 0 to 20ΔD in1ΔD step PD adjustment 16mm backward and forward Forehead relaxation adjustment 2 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 traditional plane: with scale Effective field of view 19mm

• 
• 
• 
• 
• 

Gözden geçirmek