Folded Optics - Runco RS 440LT/CineWide User Manual

Table 3-4 gives the lens shift limits for the RS-440, as percentages and absolute
measurements with a 96 x 54 inch (1.78:1) screen.
Table 3-4. Vertical and Horizontal Lens Shift Limits
Lens Shift Limits, as Percentages of Screen Height or Width (Notes 1 and 2)
Vertical
(Notes 2 and 3)
Horizontal
(Note 2)
Lens Shift Limits in Inches, with a 96-by-54 inch (1.78:1) Screen
Vertical
Horizontal
Notes:
1. With no vertical or horizontal lens shift, the lens center and screen center are aligned with each
other.
2. Vertical shift limits are percentages of the screen height. Horizontal shift limits are percentages of
the screen width.
3. Vertical lens shift figures apply to ceiling mount configurations. For floor installations
(where the projector is upright), reverse the up/down vertical offset percentages.
In rear-screen applications where space behind the projector is limited, a mirror may be
used to fold the optical path, as shown in Figure 3-6. The position of the projector and
mirror must be accurately set. If you are considering this type of installation, contact your
dealer for assistance.
Screen
Figure 3-6. Folded Optics
Runco RS-440 Installation/Operation Manual
RS-440
Up 50%
Down 55%
Left
Right
Up 27.00
Down 29.70
Left
Right
Mirror
RS-440LT
50%
75%
7.5%
7.5%
27.00
40.50
7.20
7.20
19
Installation

Folded Optics