Description
Precision geared rotary prism for more precise interpolation of small prism diopters
Corrosion-resistant materials
Lighted sphere, cylinder power and cylinder axis scales are easier than ever to see
Utilizes cool-running, energy efficient LEDs
Light only what you need to see without affecting the darkened refracting environment
Patented LED design for maintenance-free illumination without the need to change a bulb
Single, easy to use illumination control
Available in plus or minus cylinder
Additional Information
llluminated Phoroptor Catalog Numbers:
11636 Minus Cylinder - Black
11637 Plus Cylinder - Black
Sphere:
-19.00D to +16.75D
0.25D Steps
+0.12D Sphere in auxiliary dial included
Cylinder Power:
0.00D to 6.00D
0.25D Steps
Plus or minus lens system optional 0.12D and 2.00D accessory cells included
Cylinder Axis:
360 degrees (Double 0 to 180 degrees scale)
5 degrees graduations
Cross Cylinder:
± 0.25
± 0.37 or ± 0.05 Optional
Prism:
0 to 20 Prism Diopter, 1 Prism Diopter graduations
P.D.:
48 mm to 75 mm, 1 mm graduations
Vertex Distance:
13.75 mm (normal)
Graduations extend range by 6 mm
Reading Distance:
5 to 28 inches
Centimeter and diopter scales included
Auxiliary Dial:
10 lenses plus 2 open apertures
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