NEC VT37 manual Installation and Connections Throw Distance and Screen Size, Distance Chart

2. Installation and Connections

Throw Distance and Screen Size

The following shows the proper relative positions of the projector and screen. Refer to the table to determine the position of installation.

Distance Chart

Screen Width
Screen Diagonal
Screen center
Screen Height
(B)
(D)	Screen Bottom
Lens Center
Throw Angle (￿)
Throw Distance (C)

	Screen Size		B	C	D	α
Diagonal	Width	Height
inch	inch	inch	inch	inch	inch	degree
25	20	15	6	23	-2	14.6
30	24	18	7	28	-2	14.5
40	32	24	10	37	-2	14.4
60	48	36	14	56	-4	14.2
72	58	43	17	68	-4	14.2
80	64	48	19	76	-5	14.2
84	67	50	20	80	-5	14.2
90	72	54	22	85	-6	14.1
100	80	60	24	95	-6	14.1
120	96	72	29	114	-7	14.1
150	120	90	36	143	-9	14.1
180	144	108	43	172	-11	14.1
200	160	120	48	191	-12	14.0
210	168	126	50	201	-13	14.0
240	192	144	57	229	-15	14.0
270	216	162	65	258	-17	14.0
300	240	180	72	287	-18	14.0

	Screen Size		B	C	D	α
Diagonal	Width	Height
mm	mm	mm	mm	mm	mm	degree
635	508	381	150	580	-40	14.6
762	610	457	180	700	-50	14.5
1016	813	610	240	950	-60	14.4
1524	1219	914	360	1440	-90	14.2
1829	1463	1097	440	1730	-110	14.2
2032	1626	1219	490	1920	-120	14.2
2134	1707	1280	510	2020	-130	14.2
2286	1829	1372	550	2170	-140	14.1
2540	2032	1524	610	2410	-160	14.1
3048	2438	1829	730	2900	-190	14.1
3810	3048	2286	910	3630	-230	14.1
4572	3658	2743	1090	4360	-280	14.1
5080	4064	3048	1210	4850	-310	14.0
5334	4267	3200	1270	5100	-330	14.0
6096	4877	3658	1460	5830	-370	14.0
6858	5486	4115	1640	6560	-420	14.0
7620	6096	4572	1820	7290	-470	14.0

B = Vertical distance between lens center and screen center C = Throw distance

D = Vertical distance between lens center and bottom of screen (top of screen for ceiling application)

α= Throw angle

NOTE: Distances may vary +/-5%.

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