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a
90°
a (min length) =
Projection size (inches) - 0.890
32.863
a (max length) =
Projection size (inches) - 0.748
27.363
Projection
size
Projection distance a
Height (H)
min length
(zooming max)
max length
(zooming min)
30 inches
0.89 m (2.92 ft.)
1.07 m (3.51 ft.) 6.50 cm (0.21 ft.)
40 inches
1.19 m (3.90 ft.)
1.44 m (4.72 ft.) 8.70 cm (0.29 ft.)
50 inches
1.49 m (4.89 ft.)
1.80 m (5.91 ft.) 10.90 cm (0.36 ft.)
60 inches
1.80 m (5.91 ft.)
2.17 m (7.12 ft.) 13.10 cm (0.43 ft.)
70 inches
2.10 m (6.89 ft.)
2.53 m (8.30 ft.) 15.20 cm (0.50 ft.)
80 inches
2.41 m (7.91 ft.)
2.90 m (9.51 ft.) 17.40 cm (0.57 ft.)
90 inches
2.71 m (8.89 ft.)
3.26 m (10.70 ft.) 19.60 cm (0.64 ft.)
100 inches
3.02 m (9.91 ft.)
3.63 m (11.91 ft.) 21.80 cm (0.72 ft.)
120 inches
3.62 m (11.88 ft.)
4.36 m (14.30 ft.) 26.10 cm (0.86 ft.)
150 inches
4.54 m (14.90 ft.)
5.46 m (17.91 ft.) 32.70 cm (1.07 ft.)
200 inches
6.06 m (19.88 ft.)
7.28 m (23.88 ft.) 43.50 cm (1.43 ft.)
250 inches
7.58 m (24.87 ft.)
9.11 m (29.89 ft.) 54.40 cm (1.78 ft.)
300 inches
9.10 m (29.86 ft.)
10.94 m (35.89 ft.) 65.30 cm (2.14 ft.)
90°
As seen from above
As seen from the side
Screen
Lens center
Projection Distance and Size
Use the figures, tables, and formulas below to determine the projection size and projection
distance. (Projection sizes are approximate values for full-size picture with no keystone
adjustment.)
a is the distance (m, feet) between the lens and the screen, and corresponds to a range of 0.89 m
(2.92 ft.) to 10.94 m (35.89 ft.). H is the height from the image bottom to the center of the lens.
Placement (Continued)
PJ X3241N