Projection Distance And Size - Ricoh PJ X3241N Mode D'emploi

Placement (Continued)

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.)
PJ X3241N
Screen
As seen from above
90°
As seen from the side
Lens center
90°
a
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.
Projection size (inches) - 0.890
a (min length) =
Projection size (inches) - 0.748
a (max length) =
Projection distance a
Projection
min length
size
(zooming max)
30 inches 0.89 m (2.92 ft.)
40 inches 1.19 m (3.90 ft.)
50 inches 1.49 m (4.89 ft.)
60 inches 1.80 m (5.91 ft.)
70 inches 2.10 m (6.89 ft.)
80 inches 2.41 m (7.91 ft.)
90 inches 2.71 m (8.89 ft.)
100 inches 3.02 m (9.91 ft.)
120 inches 3.62 m (11.88 ft.)
150 inches 4.54 m (14.90 ft.)
200 inches 6.06 m (19.88 ft.)
250 inches 7.58 m (24.87 ft.)
300 inches 9.10 m (29.86 ft.) 10.94 m (35.89 ft.) 65.30 cm (2.14 ft.)
18
32.863
27.363
max length
(zooming min)
1.07 m (3.51 ft.) 6.50 cm (0.21 ft.)
1.44 m (4.72 ft.) 8.70 cm (0.29 ft.)
1.80 m (5.91 ft.) 10.90 cm (0.36 ft.)
2.17 m (7.12 ft.) 13.10 cm (0.43 ft.)
2.53 m (8.30 ft.) 15.20 cm (0.50 ft.)
2.90 m (9.51 ft.) 17.40 cm (0.57 ft.)
3.26 m (10.70 ft.) 19.60 cm (0.64 ft.)
3.63 m (11.91 ft.) 21.80 cm (0.72 ft.)
4.36 m (14.30 ft.) 26.10 cm (0.86 ft.)
5.46 m (17.91 ft.) 32.70 cm (1.07 ft.)
7.28 m (23.88 ft.) 43.50 cm (1.43 ft.)
9.11 m (29.89 ft.) 54.40 cm (1.78 ft.)
Height (H)