Panasonic PT-LW321U

Setting up
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23
Getting Started
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",
For 4:3 aspect ratio For 16:9 aspect ratio For 16:10 aspect ratio
Screen height (SH) = SD × 0.6 = SD × 0.490 = SD × 0.530
Screen width (SW) = SD × 0.8 = SD × 0.872 = SD × 0.848
Min. projection distance (LW) = 1.488 × SD = 1.350 × SD = 1.314 × SD
Max. projection distance (LT) = 1.632 × SD = 1.482 × SD = 1.441 × SD
Note
The throw ratio is 1.55 to 1.70:1 when the projection size is 100 inch.
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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 For 4:3 aspect ratio For 16:9 aspect ratio
Screen diagonal
(SD)
Minimum
distance
(LW)
Maximum
distance
(LT)
Height
position (H)
Minimum
distance
(LW)
Maximum
distance
(LT)
Height
position (H)
0.76 (30") 1.2 1.3 0.07 1.3 1.4 0.14
1.02 (40") 1.6 1.8 0.09 1.7 1.9 0.18
1.27 (50") 2.0 2.2 0.11 2.2 2.4 0.23
1.52 (60") 2.4 2.6 0.14 2.6 2.9 0.27
1.78 (70") 2.8 3.1 0.16 3.0 3.3 0.32
2.03 (80") 3.2 3.5 0.18 3.5 3.8 0.37
2.29 (90") 3.6 3.9 0.21 3.9 4.3 0.41
2.54 (100") 4.0 4.4 0.23 4.3 4.8 0.46
3.05 (120") 4.8 5.2 0.27 5.2 5.7 0.55
3.81 (150") 5.9 6.6 0.34 6.5 7.1 0.69
5.08 (200") 7.9 8.7 0.46 8.6 9.5 0.91
6.35 (250") 9.9 10.9 0.57 10.8 11.9 1.14
7.62 (300") 11.9 13.1 0.69 13.0 14.3 1.37
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",
For 4:3 aspect ratio For 16:9 aspect ratio
Screen height (SH) = SD × 0.6 = SD × 0.490
Screen width (SW) = SD × 0.8 = SD × 0.872
Min. projection distance (LW) = 1.560 × SD = 1.700 × SD
Max. projection distance (LT) = 1.720 × SD = 1.874 × SD
Note
The throw ratio is 1.95 to 2.15:1 when the projection size is 100 inch.
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