Panasonic PTL780NTU - LCD PROJECTOR Betriebsanleitung - Seite 14
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Setting-up
Projection methods
In way of installing projector, any one of the following four projection methods
are used. Select whichever projection method matches the setting-up
method. (The projection method can be set from the OPTION menu. Refer to
page 45 for details.)
FRONT
FRONT/REAR
REAR
NOTE:
B You will need to purchase the separate ceiling bracket (ET-PK780) when
using the ceiling installation method.
Projector position
Top edge of screen
Screen
L
Bottom edge of screen
L
Screen
26
DESK/CEILING
DESK
CEILING
(Factory default setting)
<Units: mm (inch)>
L:
Projection distance
SH: Image height
SW:Image width
Projection distances
Screen size (4:3)
Diagonal
Height
Width
length
(SH)
(SW)
1.01 m(40˝)
0.61 m(2´)
0.81 m(2´8˝)
1.27 m(50˝)
0.76 m(2´6˝)
1.02 m(3´4˝)
1.52 m(60˝)
0.91 m(3´)
1.22 m(4´)
1.77 m(70˝)
1.07 m(3´6˝)
1.42 m(4´8˝)
2.03 m(80˝)
1.22 m(4´)
1.63 m(5´4˝)
2.28 m(90˝)
1.37 m(4´6˝)
1.83 m(6´)
2.54 m(100˝) 1.52 m(5´)
2.03 m(6´8˝)
3.81 m(150˝) 2.29 m(7´6˝)
3.05 m(10´)
5.08 m(200˝) 3.05 m(10´)
4.06 m(13´4˝)
6.35 m(250˝) 3.81 m(12´6˝) 5.08 m(16´8˝) 10.1 m(33´1˝)
7.62 m(300˝) 4.57 m(15´)
6.10 m(20´)
Setting-up dimensions which are not given in the above table can be
calculated using the formulas below.
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).
LW=0.0407xSD/0.0254-0.080
LT=0.0538xSD/0.0254-0.0774
For 16:9 aspect ratios, the following formula can be used to calculate the
projection distance.
LW=0.0443xSD/0.0254-0.080
LT=0.0586xSD/0.0254-0.0774
NOTE:
B The dimensions in the table above and the values obtained from the
above formulas may contain slight errors.
B If you use the projection distance for the 16:9 screen, the
4:3 projection image overflows the screen at the top and
bottom.
B If you set up the projector vertically, it may cause to
damage the projector.
B It is recommended that you set up the projector in
a place that is tilted at less than ±35° . Setting up
the projector in places that are tilted at more than
±35° may cause malfunctions.
Make sure that enough space is kept for the air
outlet port.
Projection distance (L)
Wide
Telephoto
(LW)
(LT)
1.6 m(5´2˝)
2.0 m(6´6˝)
2.0 m(6´6˝)
2.6 m(8´6˝)
2.4 m(7´10˝)
3.1 m(10´2˝)
2.8 m(9´2˝)
3.6 m(11´9˝)
3.2 m(10´5˝)
4.2 m(13´9˝)
3.6 m(11´9˝)
4.7 m(15´5˝)
4.0 m(13´1˝)
5.3 m(17´4˝)
6.1 m(20´)
7.9 m(25´11˝)
8.1 m(26´6˝)
10.6 m(34´9˝)
13.3 m(43´7˝)
12.2 m(40´)
16.0 m(52´5˝)
27