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6.5.7.3.5 Bow shaped pre-distortion set up
How to set up a bow shaped pre-distortion ?
We assume side bow top is selected.
1. Push the cursor key ↑ or ↓ to select pixel y = 0 in the Geometry Distortion menu. (menu 6-62)
2. Push the cursor key ← or → to coarse shift the selected Side Bow in a vertical way.
This will result in a bow shaped pre-distorted image (Follow this procedure in a similar way to apply the desired bow shaped
distortion). (image 6-22)
3. Use the subpixel adjustments to fine shift the selected side bow.
4. Continue with the Coarse Side Bow or Center adjustment or press EXIT to return to the Guided Geometry Map menu.
GEOMETRY DISTORTION
side bow top
col = 4
row = 0
pixels x = 0
y = 0
subpixels x = 0
y = 0
Menu 6-62
Image 6-22
Bow shaped pre-distortions
6.5.7.3.6 Coarse linearity adjustment using Side Bows
The Linearity adjustment is best done when a reference test pattern is projected on the screen.
R5976781 TRACE+ 14/09/2004
6. Random Access
71
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