NEC NP110, NP115, NP210, NP215 manual 18

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

C

										Screen center
															B
											Screen bottom
							2.7"/68 mm					Lens center		D
		Installation surface
		Screen Size					B				C			D(WIDE)				a
Diagonal		Width		Height					Wide		-	Tele					Wide	-	Tele
inch	mm	inch	mm	inch	mm	inch		mm	inch	mm	-	inch	mm	inch		mm	degree	-	degree
30	762	24	610	18	457	12		297	46	1180	-	52	1320	3		69	14.0	-	12.7
40	1016	32	813	24	610	16		396	62	1573	-	69	1760	4		91	14.0	-	12.7
60	1524	48	1219	36	914	23		594	93	2360	-	104	2640	5		137	14.0	-	12.7
70	1778	56	1422	42	1067	27		693	108	2753	-	121	3080	6		160	14.0	-	12.7
80	2032	64	1626	48	1219	31		792	124	3147	-	139	3520	7		183	14.0	-	12.7
90	2286	72	1829	54	1372	35		891	139	3540	-	156	3960	8		206	14.0	-	12.7
100	2540	80	2032	60	1524	39		990	155	3933	-	173	4400	9		228	14.0	-	12.7
120	3048	96	2438	72	1829	47		1188	186	4720	-	208	5280	11		274	14.0	-	12.7
150	3810	120	3048	90	2286	58		1486	232	5900	-	260	6600	13		343	14.0	-	12.7
180	4572	144	3658	108	2743	70		1783	279	7080	-	312	7920	16		411	14.0	-	12.7
200	5080	160	4064	120	3048	78		1981	310	7867	-	346	8800	18		457	14.0	-	12.7
240	6096	192	4877	144	3658	94		2377	372	9440	-	416	10560	22		548	14.0	-	12.7
270	6858	216	5486	162	4115	105		2674	418	10620	-	468	11880	24		617	14.0	-	12.7
300	7620	240	6096	180	4572	117		2971	465	11800	-	520	13200	27		685	14.0	-	12.7

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: The values in the tables are design values and may vary.

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