70
Installation Distance and Projection Image Size
When projecting in 1.78:1 (16:9) format
Formula 1 (calculates a installation distance from a projection image size)
Unit: cm (inches)
Formula 2 (calculates a projection image size from a installation distance)
Unit: cm (inches)
Formula 3 (calculates a distance from a floor to the bottom of a projection image)
Unit: cm (inches)
Projection image size
Installation distance
Maximum
Minimum
From a
projecting
surface to
the rear of
the unit L1
From a
projecting
surface to
the front of
the unit L2
Diagonal 1
(D1)
Width ×
Height
Bottom
height
(H1)
Diagonal 2
(D2)
Width ×
Height
Bottom
height
(H2)
Maximum
projection
140-inch
(3.56 m)
3.10 m ×
1.74 m
(122 inches
× 69 inches)
45 cm
(18
inches)
88-inch
(2.24 m)
1.94 m ×
1.09 m
(76 inches ×
43 inches)
57 cm
(22
inches)
17 cm
(6.7 inches)
70.5 cm
(27.8
inches)
Intermediate
position
120-inch
(3.05 m)
2.67 m ×
1.50 m
(105 inches
× 59 inches)
41 cm
(16
inches)
75-inch
(1.91 m)
1.67 m×
0.94 m
(66 inches ×
37 inches)
51 cm
(20
inches)
8.5 cm
(3.3 inches)
62.0 cm
(24.4
inches)
Shortest
distance
installation
101-inch
(2.57 m)
2.24 m ×
1.26 m
(88 inches ×
50 inches)
38 cm
(15
inches)
63-inch
(1.60 m)
1.40 m ×
0.79 m
(55 inches ×
31 inches)
46 cm
(18
inches)
0 cm
(0 inch)
53.5 cm
(21.0
inches)
Maximum projection image size
Minimum projection image size
L1 = 0.1980 × W1 – 44.3078
(L1 = 0.1980 × W1 – 17.444)
L1 = 0.3163 × W2 – 44.2027
(L1 = 0.3163 × W2 – 17.4097)
L2 = 0.1980 × W1 + 9.1922
(L2 = 0.1980 × W1 + 3.6190)
L2 = 0.3163 × W2 + 9.2793
(L2 = 0.3163 × W2 + 3.6533)
From a projecting surface to the rear of the
unit
From a projecting surface to the front of the
unit
W1 = 5.0502 × L1 + 223.7640
(W1 = 5.0502 × L1 + 88.0961)
W1 = 5.0502 × L2 – 46.4218
(W1 = 5.0502 × L2 – 18.2763)
W2 = 3.1620 × L1 + 139.8246
(W2 = 3.1620 × L1 + 55.0490)
W2 = 3.1620 × L2 – 29.3402
(W2 = 3.1620 × L2 – 11.5513)
Maximum projection image size
Minimum projection image size
H1 = 0.0851 × W1 + 18.6809
(H1 = 0.0851 × W1 + 7.3547)
H2 = 0.1953 × W2 + 18.8687
(H2 = 0.1953 × W2 + 7.4286)
1.78
1
Video display area
Projection area
Summary of Contents for LSPX-W1
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