10
Collimation Dial
Two Collimation Dials X and Y are provided to adjust the light axis.
Look into one of the Collimation Holes provided above the lens to collimate
the opposed unit. Turn the Collimation Dial, until the opposed unit can be
seen in the center of the hole.
Vertical adjustment
Turn the Collimation Dial Y to adjust the light axis in a vertical direction.
The degree range of movement on “Y” dial is plus-minus 10 degrees. One
full turn of dial corresponds to approximately 1 degree change.
Horizontal adjustment
Turn the Collimation Dial X to adjust the light axis in a horizontal direction.
The degree range of movement on “X” dial is plus-minus 10 degrees. One
full turn of dial corresponds to approximately 1.7 degree change.
Adjustment procedure
1. Adjust the light axis of the Transmitter.
2. After the light axis adjustment is completed, close the main cover
immediately.
3. Adjust the light axis of the Receiver.
4. After the light axis adjustment is completed, adjust the receiving light
intensity next.
Adjustment of Light Axis (Transmitter and Receiver)
Collimation Dial Y
Collimation Dial X
Collimation Hole
Collimation Hole
U
D
L
R
Collimation
Axis
