NEC VT45 user manual Ceiling Installation, Reflecting the Image, Lens Offset, 5.4mm, E-16

Ceiling Installation

		Projector feet
Screen Bottom/	D	44.6 mm / 1.76”
Lens Center
		α
	B
Screen Center
		Throw Distance
		C

B = Vertical distance between lens center and screen center

C = Throw distance

D = Vertical distance between lens center and top of screen

α= Throw angle

Lens Offset		5.4mm
		Screen Size					B				C				D			α
Diagonal		Width		Height					wide			tele					wide		tele
inch	mm	inch	mm	inch	mm	inch		mm	inch	mm	-	inch	mm	inch		mm	degree	-	degree
25	635	20	508	15	381	8		191	36	910	-	39	1000	0		0	11.8	-	10.8
30	762	24	610	18	457	9		229	43	1100	-	48	1210	0		0	11.7	-	10.7
40	1016	32	813	24	610	12		305	58	1470	-	64	1620	0		0	11.7	-	10.7
60	1524	48	1219	36	914	18		457	87	2220	-	96	2450	0		0	11.6	-	10.6
67	1702	54	1361	40	1021	20		511	98	2490	-	108	2740	0		0	11.6	-	10.6
72	1829	58	1463	43	1097	22		549	105	2670	-	116	2940	0		0	11.6	-	10.6
80	2032	64	1626	48	1219	24		610	117	2970	-	129	3270	0		0	11.6	-	10.6
84	2134	67	1707	50	1280	25		640	123	3120	-	135	3440	0		0	11.6	-	10.5
90	2286	72	1829	54	1372	27		686	132	3350	-	145	3690	0		0	11.6	-	10.5
100	2540	80	2032	60	1524	30		762	147	3730	-	161	4100	0		0	11.5	-	10.5
120	3048	96	2438	72	1829	36		914	176	4480	-	194	4930	0		0	11.5	-	10.5
150	3810	120	3048	90	2286	45		1143	220	5600	-	243	6170	0		0	11.5	-	10.5
180	4572	144	3658	108	2743	54		1372	265	6730	-	292	7410	0		0	11.5	-	10.5
200	5080	160	4064	120	3048	60		1524	294	7480	-	324	8240	0		0	11.5	-	10.5
210	5334	168	4267	126	3200	63		1600	309	7860	-	341	8650	0		0	11.5	-	10.5
240	6096	192	4877	144	3658	72		1829	354	8980	-	389	9890	0		0	11.5	-	10.5
261	6629	209	5304	157	3978	78		1989	385	9770	-	424	10760	0		0	11.5	-	10.5
270	6858	216	5486	162	4115	81		2057	398	10110	-	438	11130	0		0	11.5	-	10.5
300	7620	240	6096	180	4572	90		2286	443	11240	-	487	12370	0		0	11.5	-	10.5

B = Vertical distance between lens center and screen center

C = Throw distance

D = Vertical distance between lens center and top of screen

α= Throw angle

WARNING

•Installing your projector on the ceiling must be done by a qualified technician. Contact your NEC dealer for more information.

* Do not attempt to install the projector yourself.

•Only use your projector on a solid, level surface. If the projector falls to the ground, you can be injured and the projector severely damaged.

•Do not use the projector where temperatures vary greatly. The projector must be used at temperatures between 32˚F (0˚C) and 95˚F (35˚C).

•Do not expose the projector to moisture, dust, or smoke. This will harm the screen image.

•Ensure that you have adequate ventilation around your projector so heat can dissipate. Do not cover the vents on the side or the front of the projector.

If your projector is mounted on the ceiling and your image is upside down, use the “Menu” and “Select” buttons on your pro- jector cabinet or ▲▼ buttons on your remote control to correct the orientation. (See page E-33.)

Reflecting the Image

Using a mirror to reflect your projector’s image enables you to enjoy a much larger image. Contact your NEC dealer if you need a mirror. If you’re using a mirror and your image is inverted, use the “Menu” and “Select” buttons on your projector cabinet or ▲▼ buttons on your remote control to correct the orientation. (See page E-33.)

E–16