Panasonic PT-TW240U Operations Instructions download pdf (Page 25)

Setting up

ENGLISH -

Getting Started

Calculation formulas for projection distance

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

Projection distance (L) = 0.500 × SD = 0.454 × SD = 0.442 × SD

Note

The throw ratio is 0.52:1 when the projection size is 100 inch.

Projection distance for PT-TX301RU

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)

Projection distance

(L)

Height position (H)

Projection distance

(L)

Height position (H)

1.02 (40") 0.51 0.09 - -

1.27 (50") 0.64 0.11 0.69 0.23

1.52 (60") 0.76 0.14 0.83 0.27

1.78 (70") 0.89 0.16 0.97 0.32

2.03 (80") 1.02 0.18 1.11 0.37

2.29 (90") 1.14 0.21 1.25 0.41

2.54 (100") 1.27 0.23 1.39 0.46

3.05 (120") 1.53 0.27 1.66 0.55

3.81 (150") 1.91 0.34 2.08 0.68

5.08 (200") 2.54 0.46 - -

Calculation formulas for projection distance

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

Projection distance (L) = 0.5008 × SD = 0.5456 × SD

Note

The throw ratio is 0.63:1 when the projection size is 100 inch.

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Panasonic PT-TW240U Operations Instructions Page 25

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