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11625-101-Rev. L
Instrument Setup
(continued)
Parts Identification
(continued)
Illuminated Phoroptor
The illumination option reduces eyestrain by lighting the most commonly used scales and dials.
Lighting is provided by energy efficient, cool running LEDs (light emitting diodes) that require no
maintenance. Operators simply plug the Illuminated Phoroptor into the appropriate power receptacle
to turn the lighting on. All other instrument functions remain unchanged.
Illuminated Features
1. Sphere Scale
2. Cylinder Axis Scale
3. Cylinder Power Scale
4. Rheostat Control
5. Power Input
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