Runco VX-80d Spezifikationen Seite 13

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Section 2: Installation and Setup Section 2: Installation and Setup
Vertical and horizontal position
The correct vertical and horizontal position of the projector in relation to the screen
depends on the lens type and the screen size. Ideally, the projector should be positioned
perpendicular to the screen. This way, the image will appear rectangular instead of
keystoned (trapezoidal).
The vertical position of the image can be offset that is moved above or below the
optical axis (lens center) by adjusting the fully motorized lens mount using the keypad. The
amount of vertical offset available depends directly on the lens installed in the projector
and can be slightly limited if horizontal offset has been applied.
Vertical offset can also be expressed as the percent of half the image height OR the
number of pixels of shift from lens center. Refer to Figure 2.2 for some illustrated examples
of vertical offset.
Table 2.1 along with Figure 2.3 show the maximum vertical offset of a lens or alternatively,
how much of your projected image will appear above or below lens center if the maximum
vertical offset is applied using that lens.




Figure 2.1 Estimating Throw Distance
Table
2.1 Lens Offsets for the VX-40d / VX-50d
% Offset = # pixels of offset / half panel resolution x 100.
Lens Type
Vertical Offset
(% of Half Height)
Maximum amount of
projected image above
or below lens center
Horizontal Offset
(% of Half Width)
Maximum amount of
projected image to one
side of lens center
% Pixels % Pixels % Pixels % Pixels
0.8:1 fixed 37% +/-196 69% +/-721 22% +/-153 61% +/-853
1.65-1.95:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
2.04-2.73:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
2.86-4.83:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
4.96-7.90:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
Table 2.1 Lens Offsets for the VX-60d / VX-80d
% Offset = # pixels of offset / half panel resolution x 100.
Lens Type
Vertical Offset
(% of Half Height)
Maximum amount of
projected image above
or below lens center
Horizontal Offset
(% of Half Width)
Maximum amount of
projected image to one
side of lens center
% Pixels % Pixels % Pixels % Pixels
0.75:1 fixed 37% +/-196 69% +/-721 22% +/-153 61% +/-853
1.48-1.75:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
1.81-2.40:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
2.56-4.35:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
4.48-7.15:1 zoom 100% +/-525 100% +/-1050 50% +/-350 75% +/-1050
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