Panasonic PT-LB355U, Руководство по эксплуатации, Страница: 29 / 115

ENGLISH - 29
Projection distance formulas
To use a screen size not listed in this manual, check the screen size SD (m) and use the respective formula to calculate
projection distance.
The unit of all the formulae is m. (Values obtained by the following calculation formulae contain a slight error.)
If you want to calculate the projection distance with projected image size SD (unit: inch) by substituting, please assign 0.0254
times to the SD value.
For PT-LW375D
16:10 aspect ratio 16:9 aspect ratio 4:3 aspect ratio
Screen height (SH) = 0.530 × SD = 0.490 × SD = 0.6 × SD
Screen width (SW)
= 0.848 × SD = 0.872 × SD = 0.8 × SD
Minimum distance (LW)
= 1.2692 × SD - 0.025 = 1.3045 × SD - 0.025 = 1.4369 × SD - 0.025
Maximum distance (LT) = 1.5249 × SD - 0.025 = 1.5673 × SD - 0.025 = 1.7263 × SD - 0.025
For PT-LW335D
16:10 aspect ratio 16:9 aspect ratio 4:3 aspect ratio
Screen height (SH) = 0.530 × SD = 0.490 × SD = 0.6 × SD
Screen width (SW) = 0.848 × SD = 0.872 × SD = 0.8 × SD
Minimum distance (LW) = 1.2660 × SD - 0.02327 = 1.3008 × SD - 0.02327 = 1.4332 × SD - 0.02327
Maximum distance (LT)
= 1.5195 × SD - 0.02367 = 1.5615 × SD - 0.02367 = 1.7202 × SD - 0.02367
For PT-LB425D, PT-LB425T, PT-LB385D, PT-LB385T, PT-LB355D, PT-LB355T and PT-LB305D
4:3 aspect ratio 16:9 aspect ratio
Screen height (SH) = 0.6 × SD = 0.490 × SD
Screen width (SW) = 0.8 × SD = 0.872 × SD
Minimum distance (LW) = 1.1974 × SD - 0.025 = 1.3045 × SD - 0.025
Maximum distance (LT) = 1.4386 × SD - 0.025 = 1.5673 × SD - 0.025
Chapter 2 Getting Started - Setting up