Sony VPH-G70Q Brochure & Specs page 11

Be sure that the projector is
level to the floor.
A
B
C
Use the PSS-70 Projector
Suspension Support (not
supplied).
C
Center of the
screen
B
A
Wall
WHAT IS THE
OPTICAL AXIS
ANGLE?
The optical axis angle is the
angle between the horizontal
level line and the straight
line from the center of the
Optical
projector's green lens to the
axis
center of the screen. When
angle
using a rear projection
screen, you can get the
brightest picture when the
center of the screen is
aligned with a straight line
extension of the center of
the green lens.
Therefore, the most
suitable optical axis angle
varies depending on the
height of the screen and
your line of sight.
Wall
E
15.2˚
Center of the
screen
H
F
F
E
H
15.2˚
D
G
G
Center of the screen
2˚
14.6˚
Standard
hole for
installation
Floor
G
Center of the
green lens
D
13
274.8 (10 / )
16
274.8
21
372 (14 / )
32
13
(10 / )
16
Center of the green lens
Wall
–
A
0
B
+
E
F
B:Difference in height
between the projector's
bottom surface and the
center of the screen
E: Horizontal distance
between the center of
the screen and the
center of the green lens
F: Horizontal distance
between the center of
the screen and the
standard hole for
installation
Tolerances
B: ±5%
Standard Other measurements:
hole for 0% to +5%
installation
Floor
E: Horizontal distance
between the center of
the screen and the
center of the green lens
Rotation axis
Tolerances
of the PSS-70
B: ±5%
Other measurements:
0% to +5%
Ceiling