Panasonic PT-D3500E manual Projection schemes, Installation geometry, Projection distances

Installation

Projection schemes

Any of the following four projection schemes can be used with the PT-D3500E projector depending on user’s needs or viewing conditions.

Use “OPTION2” menu (chosen from the MENU) to choose the appropriate projection scheme (see page 35).

Projection Scheme 2

		Table standing	Ceiling mount
Scheme 1	Front projection	(Default position)
Projection	Rear projection

Installation geometry

After the projector is roughly positioned, picture size and vertical picture positioning can be finely adjusted with the powered zoom lens and lens tilt mechanism.

Side view

With optional ceiling mount		454-374
bracket (ET-PKD35)
H
L
SH	172	270

H

Screen

L: Projection distance SH : Image height

SW : Image width

H : Distance from centre of lens to bottom edge of projected image.

Top view

		65
SW	L
		65
	102
	70	70
	Screen

Projection distances

Listed in the table below are the projection distances of the standard lens provided with the PT-D3500E.

Refer to page 61 for the projection distances of the projection lenses available as optional accessories.

					Unit : m (SD : inch)
Screen Size (4 : 3)				Projection distance: L		Height
Diagonal	Height		Width	Minimum	Maximum	position: H
length (SD)		(SH)	(SW)	(LW)	(LT)
50		0.76	1.02	1.81	2.40	0 - 0.38
60		0.91	1.22	2.18	2.89	0 - 0.46
70		1.07	1.42	2.55	3.38	0 - 0.53
80		1.22	1.63	2.92	3.87	0 - 0.61
90		1.37	1.83	3.29	4.36	0 - 0.69
100		1.52	2.03	3.66	4.85	0 - 0.76
120		1.83	2.44	4.41	5.83	0 - 0.91	ENGLISH
150		2.29	3.05	5.52	7.30	0 - 1.14
200		3.05	4.06	7.38	9.75	0 - 1.52
250		3.81	5.08	9.23	12.20	0 - 1.91
300		4.57	6.10	11.09	14.65	0 - 2.29
350		5.33	7.11	12.95	17.10	0 - 2.67
400		6.10	8.13	14.80	19.55	0 - 3.05
500		7.62	10.16	18.51	24.45	0 - 3.81
600		9.14	12.19	22.23	29.35	0 - 4.57
Setting-up dimensions which are not given in the
above table can be calculated using the formulas
below.
LW = 0.03713 x SD – 0.05067
LT = 0.049 x SD – 0.05
(LW,LT: m SD: inch)
For 16 : 9 aspect rations, the following formal can be
used to calculate the screen width (SW).
SW = (SD x 0.0254) x 16 ÷ 337
The value for SW obtained above can then be used
with the following function to calculate the projection
distance for the wide lens position (LW) and the
projection distance for the telephoto lens position (LT).
LW = 1.827 x SW – 0.05067
LT = 2.411 x SW – 0.05
Note		• The dimensions in the table above and
		the values obtained from the above

formulas may contain slight errors.

•It is recommended that you use the projection distance for the wide lens position.

•The above dimensions are the case when the aspect ratio is 4:3. When an SXGA signal is input and projected, the right and left ends of the picture will be blanked the aspect ratio will be 5:4.

Attention • Do not place or use one projector on top of another projection unit.

•Install the projector such that the exhaust port on the rear side is not blocked and a clearance of more than 30 cm is available.

17