Epson EB-G6870, User Manual, Page: 54 / 196

Curved Surface
Manually correct distortion that occurs when projecting on a curved
surface, and adjust the amount of expansion and contraction.
Project from the front with the horizontal lens shift in the center.
s
"Adjusting the Position of the Projected Image (Lens Shift)" p.30
a
•
Project onto an arc surface with the same radius.
•
If a large amount of adjustment is performed, the focus may not be
uniform even after making adjustments.
Correction range
The correction ranges are shown in the following tables.
EB-G6970WU
Horizontal curved surface (concave)
L
R
A
Screen
B
Center of circle formed by curved
surface
L Projection distance
R Radius of circle formed by curved
surface
As seen from directly above
The following shows the minimum R/L for the illustration above.
(The closest value when projecting at maximum zoom. ELPLR03 does not
support lens shift.)
Lens Type Vertical Lens Shift:
Center
As seen from the side
Vertical Lens Shift:
Maximum
As seen from the side
Standard zoom lens: ELPLS07 0.4 0.9
Short throw zoom lens:
ELPLU01 1.4 3.6
Rear projection wide lens:
ELPLR03 0.9 -
Middle throw zoom lens:
ELPLM04 0.2 0.3
Middle throw zoom lens:
ELPLM05 0.1 0.2
Adjusting Projected Images
54