Panasonic DLP PT-D12000E Operating Instructions Manual page 21

Projected range using geometric adjustment
VERTICAL KEYSTONE
Side View
Screen
VERTICAL ARC
Side View
L2
Screen
R2
Side View
Centre of the
circle
Screen
R3
Keystone correction only
Vertical
Lens
Keystone
Correction
Angle ( )
ET-D75LE1 40
ET-D75LE2 40
ET-D75LE3 40
ET-D75LE4 40
ET-D75LE5 22
ET-D75LE6 28
ET-D75LE8 40
Note
• When using geometric adjustment, if the amount of compensation is too great, focusing for the entire screen
may become blurred.
• When using the arc screen, make the screen the same shape as an arc created by cutting away a portion of a
full circle.
L2 : Projection distance
R2 : Radius of the circle
L3
L3 : Projection distance
R3 : Radius of the circle
When using arc and keystone correction together
Horizontal Vertical
Keystone Keystone
Correction Correction
Angle ( ) Angle ( )
15 5
15 5
15 10
15 10
15 5
10 5
15 10
HORIZONTAL KEYSTONE
Top View
Screen
HORIZONTAL ARC
Top View
L2
Screen
Top View
Centre of the
circle
Screen
R3
Horizontal
R2/L2
Keystone
minimum
Correction
value
Angle ( )
5 1.6
5 1.2
10 0.8
15 0.6
5 3.0
5 2.4
15 0.4
L2 : Projection distance
R2 : Radius of the circle
R2
L3
L3 : Projection distance
R3 : Radius of the circle
Arc correction only
R3/L3 R2/L2
minimum minimum
value value
3.2 0.8
2.4 0.6
1.6 0.4
1.0 0.3
6.0 1.5
4.8 1.2
0.8 0.2
ENGLISH – 21
R3/L3
minimum
value
1.6
1.2
0.8
0.5
3.0
2.4
0.4