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4. Check the three-dimensional alignment of the system. The instrument is
optimized when the projection screen is angled to direct light to the patient’s
head. Place a mirror on the screen. The light should project where the
patient’s head would be.
8. Focusing
To obtain the correct focus:
1. Measure the distance from the patient to the screen (refracting distance).
2. Turn the Auto Chart Projector on, and using the remote control, project the 0.05
“K” onto the screen.
3. If using a wall mount, it is best to locate a wall stud to support the weight of
instrument.
4. Adjust the position of the instrument forward or backward for sizing.
5. Adjust for sharpness and clarity by turning the focusing wheel left or right as
needed.
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