Projection Dimensions - ViewSonic PJD7820HD User Manual

Projection dimensions

Refer to "Dimensions" on page 58
calculating the appropriate position.
The "screen" mentioned below refers to the projection screen usually consisting of a surface
and a support structure
• 16:9 image on a 16:9 screen
(a)
(d)
(c)
• 16:9 image on a 4:3 screen
(a)
(d)
(c)
(e): Screen (f): Center of lens
16:9 image on a 16:9 Screen
(a) Screen
(b) Projection distance
Size
[m (inch)]
[inch (m)]
min.
30 (0.8) 0.77 (30) 1.00 (39) 37.4 (15)
40 (1.0) 1.02 (40) 1.33 (52) 49.8 (20)
50 (1.3) 1.28 (50) 1.66 (65) 62.3 (25)
60 (1.5) 1.53 (60) 1.99 (78) 74.7 (29)
70 (1.8) 1.79 (70) 2.32 (92) 87.2 (34)
80 (2.0) 2.04 (80) 2.66 (105) 99.6 (39)
90 (2.3) 2.30 (91) 2.99 (118) 112.1 (44)
100 (2.5) 2.55 (101) 3.32 (131) 124.5 (49)
120 (3.0) 3.07 (121) 3.98 (157) 149.4 (59)
150 (3.8) 3.83 (151) 4.98 (196) 186.8 (74)
200 (5.1) 5.11 (201) 6.64 (261) 249.1 (98) 12 (4.9) 4.69 (185) 6.10 (240) 228.6 (90) 38.1 (15.0)
250 (6.4) 6.39 (251) 8.30 (327) 311.3 (123) 16 (6.1) 5.86 (231) 7.62 (300) 285.8 (113) 47.6 (18.8)
300 (7.6) 7.66 (302) 9.96 (392) 373.6 (147) 19 (7.4) 7.03 (277) 9.14 (360) 342.9 (135) 57.2 (22.5)
There is 3% tolerance among these numbers due to optical component variations. It is
recommended that if you intend to permanently install the projector, you should physically
test the projection size and distance using the actual projector in situ before you permanently
install it, so as to make allowance for this projector's optical characteristics. This will help you
determine the exact mounting position so that it best suits your installation location.
for the center of lens dimensions of this projector before
(b)
(f)
(e)
(b)
(f)
(e)
(c) Image (d) Vertical
height offset
[cm (inch)] [cm (inch)]
max.
2
2
3
4
4
5
6
6
7
9
13
(a)
(c)
(d)
(a)
(c)
(d)
16:9 image on a 4:3 Screen
(b) Projection distance
[m (inch)]
min. max.
(0.7) 0.70 (28) 0.91 (36) 34.3 (14) 5.7 (2.3)
(1.0) 0.94 (37) 1.22 (48) 45.7 (18) 7.6 (3.0)
(1.2) 1.17 (46) 1.52 (60) 57.2 (23) 9.5 (3.8)
(1.5) 1.41 (55) 1.83 (72) 68.6 (27) 11.4 (4.5)
(1.7) 1.64 (65) 2.13 (84) 80.0 (32) 13.3 (5.3)
(2.0) 1.88 (74) 2.44 (96) 91.4 (36) 15.2 (6.0)
(2.2) 2.11 (83) 2.74 (108) 102.9 (41) 17.1 (6.8)
(2.5) 2.34 (92) 3.05 (120) 114.3 (45) 19.1 (7.5)
(2.9) 2.81 (111) 3.66 (144) 137.2 (54) 22.9 (9.0)
(3.7) 3.52 (138) 4.57 (180) 171.5 (68) 28.6 (11.3)
(e)
(f)
(b)
(e)
(f)
(b)
(c) Image (d) Vertical
height offset
[cm (inch)] [cm (inch)]