WOODLYN REFRACTOR

Friday, December 18, 2009 by Used Ophthalmic Equipment · 0 comments
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WOODLYN REFRACTOR

SPHERICAL LENSES: +16.75D to -19.00D (0.25D steps) two-sphere power dial combination.
CYLINDER LENSES:0.00D to -6.00D (extendable to -8.00; 0.25D steps, refinable to 0.125D); plus system optional.
CYLINDER AXIS:360 degrees (double 0 -180 degrees scale, 5 degree steps).
CROSS CYLINDERS:+/- 0.25D standard (+/- 0.37D, +/- 0.50D optional).
ROTARY PRISMS:20 prisms each (1 prism scale graduation), paired gives 40 prism in any base direction.
PD ADJUSTMENT:48 - 75mm (1mm scale graduation).
VERTEX DISTANCE:13.75mm
READING DISTANCE:5 - 28" (plus cm & D scales).
AUXILIARY DIALS:10 lenses and 2 open apertures

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