Table of Contents
Advertisement
Calculation formulas for projection distance
Q
Any other projection distance can be obtained according to the screen dimensions (m) using the following
calculations. The calculation result is with the "m" unit. (The calculated distance below may contain a certain
error.) If the screen dimensions are written as "SD",
Screen height (SH)
Screen width (SW)
Min. projection distance (LW)
Max. projection distance (LT)
Note
The throw ratio is 1.55 to 1.70:1 when the projection size is 100 inch.
z
Projection distance for PT-LX351U, PT-LX321U and PT-LX271U
J
All measurements below are approximate and may differ slightly from the actual measurements. (Unit: m)
Projection size
Minimum
Screen diagonal
distance
(SD)
(LW)
0.76 (30")
1.2
1.02 (40")
1.6
1.27 (50")
2.0
1.52 (60")
2.4
1.78 (70")
2.8
2.03 (80")
3.2
2.29 (90")
3.6
2.54 (100")
4.0
3.05 (120")
4.8
3.81 (150")
5.9
5.08 (200")
7.9
6.35 (250")
9.9
7.62 (300")
11.9
Calculation formulas for projection distance
Q
Any other projection distance can be obtained according to the screen dimensions (m) using the following
calculations. The calculation result is with the "m" unit. (The calculated distance below may contain a certain
error.) If the screen dimensions are written as "SD",
Screen height (SH)
Screen width (SW)
Min. projection distance (LW)
Max. projection distance (LT)
Note
The throw ratio is 1.95 to 2.15:1 when the projection size is 100 inch.
z
For 4:3 aspect ratio
= SD × 0.6
= SD × 0.8
= 1.488 × SD
= 1.632 × SD
For 4:3 aspect ratio
Maximum
Height
distance
position (H)
(LT)
1.3
0.07
1.8
0.09
2.2
0.11
2.6
0.14
3.1
0.16
3.5
0.18
3.9
0.21
4.4
0.23
5.2
0.27
6.6
0.34
8.7
0.46
10.9
0.57
13.1
0.69
For 4:3 aspect ratio
= SD × 0.6
= SD × 0.8
= 1.560 × SD
= 1.720 × SD
For 16:9 aspect ratio
= SD × 0.490
= SD × 0.872
= 1.350 × SD
= 1.482 × SD
For 16:9 aspect ratio
Minimum
Maximum
distance
distance
(LW)
(LT)
1.3
1.4
1.7
1.9
2.2
2.4
2.6
2.9
3.0
3.3
3.5
3.8
3.9
4.3
4.3
4.8
5.2
5.7
6.5
7.1
8.6
9.5
10.8
11.9
13.0
14.3
For 16:9 aspect ratio
= SD × 0.490
= SD × 0.872
= 1.700 × SD
= 1.874 × SD
Setting up
For 16:10 aspect ratio
= SD × 0.530
= SD × 0.848
= 1.314 × SD
= 1.441 × SD
Height
position (H)
0.14
0.18
0.23
0.27
0.32
0.37
0.41
0.46
0.55
0.69
0.91
1.14
1.37
ENGLISH -
23
Advertisement
Table of Contents
