Panasonic PT-LB50NTU Manuel d'utilisateur télécharger pdf (Page 67)

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Projection dimensions calculation methods

If the screen size (diagonal) is SD (m), then the following formula is used to

calculate the projection distance for the wide lens position (LW) and the

projection distance for the telephoto lens position (LT).

Appendix

4:3

LW/ LT

NOTE:

B If 4:3 images are projected onto a 16:9 screen that

has been set using the projection distance for a

16:9 screen, the 4:3 images will overflow the

screen at the top and bottom. In such cases, set

“ASPECT” to “S4:3”. (Refer to page 46 for details.)

*The values obtained from the formulas above are approximate.

For 16:9 aspect ratios, the following formula can be used to calculate the

projection distance.

LW=0.0307xSD/0.0254-0.031

LT=0.0371xSD/0.0254-0.029

LW=0.0304xSD/0.0254-0.029

LT=0.0368xSD/0.0254-0.041

PT-LB50NTU/PT-LB50U

PT-LB50SU

LW=0.0335xSD/0.0254-0.0315

LT=0.0405xSD/0.0254-0.0365

LW=0.0332xSD/0.0254-0.032

LT=0.0401xSD/0.0254-0.038

PT-LB50NTU/PT-LB50U

PT-LB50SU

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Panasonic PT-LB50NTU Manuel d'utilisateur Page 67