NEC LT240, LT260 user manual

INSTALLATION AND CONNECTIONS ￿ Setting Up the Screen and theProjector <LT260>

B = Vertical distance between lens center and screen center

C = Throw distance

D = Vertical distance between lens center and bottom of screen

α= Throw angle

NOTE: Distances may vary +/-5%.

	Screen Size		B		C		D		α
Diagonal	Width	Height		Wide – Tele				Wide – Tele
inch	inch	inch	inch	inch			inch	degree
30	24	18	12.6	46.4	–	57.0	3.6	15.2	- 12.5
40	32	24	16.8	62.4	–	76.4	4.8	15.1	- 12.4
60	48	36	25.3	94.5	– 115.3		7.3	15.0	- 12.4
67	54	40	28.2	105.8	– 128.9		8.1	14.9	- 12.3
72	58	43	30.3	113.8	– 138.6		8.7	14.9	- 12.3
80	64	48	33.7	126.6	– 154.1		9.7	14.9	- 12.3
84	67	50	35.4	133.0	– 161.9		10.2	14.9	- 12.3
90	72	54	37.9	142.7	– 173.6		10.9	14.9	- 12.3
100	80	60	42.1	158.7	– 193.0		12.1	14.9	- 12.3
120	96	72	50.5	190.8	– 231.8		14.5	14.8	- 12.3
150	120	90	63.2	239.0	– 290.1		18.2	14.8	- 12.3
180	144	108	75.8	287.1	– 348.4		21.8	14.8	- 12.3
200	160	120	84.2	319.2	– 387.2		24.2	14.8	- 12.3
210	168	126	88.4	335.3	– 406.7		25.4	14.8	- 12.3
240	192	144	101.1	383.4	– 464.9		29.1	14.8	- 12.3
261	209	157	109.9	417.1	– 505.7		31.6	14.8	- 12.3
270	216	162	113.7	431.6	– 523.2		32.7	14.8	- 12.3
300	240	180	126.3	479.7	– 581.5		36.3	14.8	- 12.3
350	280	210	147.4	560.0	– 678.6		42.4	14.7	- 12.3
400	320	240	168.5	640.2	– 775.7		48.5	14.7	- 12.3
450	360	270	189.5	720.5	– 872.9		54.5	14.7	- 12.2
500	400	300	210.6	800.7	– 970.0		60.6	14.7	- 12.2
	Screen Size		B		C		D		α
Diagonal	Width	Height		Wide – Tele				Wide – Tele
mm	mm	mm	mm	mm			mm	degree
762	610	457	321	1178	-	1448	92	15.2	- 12.5
1016	813	610	428	1586	-	1942	123	15.1	- 12.4
1524	1219	914	642	2401	-	2928	184	15.0	- 12.4
1702	1361	1021	716	2686	-	3274	206	14.9	- 12.3
1829	1463	1097	770	2890	-	3520	221	14.9	- 12.3
2032	1626	1219	855	3216	-	3915	246	14.9	- 12.3
2134	1707	1280	898	3379	-	4113	258	14.9	- 12.3
2286	1829	1372	962	3624	-	4409	277	14.9	- 12.3
2540	2032	1524	1069	4032	-	4902	307	14.9	- 12.3
3048	2438	1829	1283	4847	-	5889	369	14.8	- 12.3
3810	3048	2286	1604	6070	-	7369	461	14.8	- 12.3
4572	3658	2743	1925	7293	-	8849	554	14.8	- 12.3
5080	4064	3048	2139	8108	-	9836	615	14.8	- 12.3
5334	4267	3200	2246	8516	-10329		646	14.8	- 12.3
6096	4877	3658	2567	9739	-11810		738	14.8	- 12.3
6629	5304	3978	2792	10595	-12846		803	14.8	- 12.3
6858	5486	4115	2888	10962	-13290		831	14.8	- 12.3
7620	6096	4572	3209	12185	-14770		923	14.8	- 12.3
8890	7112	5334	3744	14223	-17237		1077	14.7	- 12.3
10160	8128	6096	4279	16261	-19704		1231	14.7	- 12.3
11430	9144	6858	4814	18299	-22171		1385	14.7	- 12.2
12700	10160	7620	5349	20338	-24638		1539	14.7	- 12.2

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