Runco VX-22D manual Folded Optics

Installation

Table 3-4lists the lens shift limits for each available VX-22d lens, as percentages and absolute measurements with a 100 x 56 inch (1.78:1) screen.

Table 3-4. VX-22d Vertical and Horizontal Lens Shift Limits

				Lens Option
		Triton A1	Triton A2	Triton B	Triton C	Triton D	Triton E
Lens Shift Limits, as Percentages of Screen Height or Width (Notes 1 and 2)
Vertical	Up	10%	31%	30%	32%	28%	30%
(Note 2)
	Down	10%	71%	61%	62%	65%	63%
Horizontal	Left	5%	17%		12%
(Note 2)
	Right	5%	17%		12%
	Lens Shift Limits in Inches, with a 100-by-56 inch (1.78:1) Screen
Vertical	Up	5.60	17.36	16.80	17.92	15.68	16.80
	Down	5.60	39.76	34.16	34.72	36.40	35.28
Horizontal	Left	5.00	17.00		12.00
	Right	5.00	17.00		12.00
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		Folded Optics
used to fold the optical path, as shown in Figure 3-5.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	Mirror

Figure 3-5. Folded Optics

Runco VX-22d Owner’s Operating Manual 21