Phoropter Optical View Tester Vision Tester

Brand: YellowTT

Features:

• 1.Delivery via UPS or TNT etc and arrival in 5--7 working days.
• 2. Capable of checking up all-sided visual functions, precise and comfortable in measurement
• 3. Exquisite manufacturing technique, with comfortable feel
• 4. High grade plated-film used in all optic lenses
• 5. Black color, minus cylinder

XINYUAN

Details: Top-grade quality made with all metal machanism and gears for best smoothy turning.

Elegant design of butterfly-shape appearance

--1.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)

--2.extending sphere range:+26.75D to29.00D (When optional ±10.00D lens is in use)

--3.Cylinder power range: 0 to6.00D, with minimum reading 0.25D or 0.12D (whenauxiliary lens is in use)

--4.extending cylinder range:0 to8.00D (when2.00D auxiliary lens is in use)

--5.Astigmatic axis scale: 0 to 180° in 15° steps

--6.Cross cylinder: ±0.25D, reversal type (synchronized with astigmatic axis)

--7.Rotary prism: 0 to 20?D in 1?D step

--8.Interpupillary adjustment: 48mm to 80mm in 1mm step (right and left synchronized)

--9.Forehead rest adjustment: 16mm backward and forward

--10.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)

--11.Interpupillary distance enabling convergenceš 57mm to 80mm

--12.Corneal distance device: 2mm forward and 5mm backward from standard plane; with scale

--13.Effective field of view: 19mm

--14.Weight: 5kgs

--15.Size: 291-323×315×85

UPC: 734016440214

EAN: 734016440214