NEC VT46 user manual E-11, Throw Distance and Screen Size, Reflecting the Image, Distance Chart

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 Height	Screen center

	(B)
	(D)	Screen Bottom
		Lens Center
Throw Angle (α)
		Throw Distance (C)

	Screen Size		B		C		D		α
Diagonal	Width	Height		Wide – Tele				Wide – Tele
inch	inch	inch	inch	inch			inch	degree
21	17	13	5	–––	-	29	1	–––	- 10.0
25	20	15	6	29	-	35	1	11.8	-	9.9
30	24	18	7	35	-	42	2	11.7	-	9.8
40	32	24	10	47	-	57	2	11.6	-	9.7
60	48	36	15	71	-	86	3	11.5	-	9.6
72	58	43	17	86	-	103	4	11.4	-	9.6
80	64	48	19	96	-	115	5	11.4	-	9.6
84	67	50	20	101	-	121	5	11.4	-	9.6
90	72	54	22	108	-	129	5	11.4	-	9.5
100	80	60	24	120	-	144	6	11.4	-	9.5
120	96	72	29	144	-	173	7	11.4	-	9.5
150	120	90	36	181	-	217	9	11.4	-	9.5
180	144	108	44	217	-	260	10	11.3	-	9.5
200	160	120	48	241	-	290	12	11.3	-	9.5
210	168	126	51	253	-	304	12	11.3	-	9.5
240	192	144	58	290	-	348	14	11.3	-	9.5
270	216	162	65	326	-	391	16	11.3	-	9.5
300	240	180	73	363	-	400	17	11.3	-	9.5

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

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

α= Throw angle

NOTE: Distances may vary +/-5%.

	Screen Size		B		C		D		α
Diagonal	Width	Height		Wide – Tele				Wide – Tele
mm	mm	mm	mm	mm			mm	degree
533	427	320	130	–––	-	740	30	–––	- 10.0
635	508	381	150	740	-	880	40	11.8	-	9.9
762	610	457	180	890	- 1070		40	11.7	-	9.8
1016	813	610	250	1200	- 1440		60	11.6	-	9.7
1524	1219	914	370	1810	- 2180		90	11.5	-	9.6
1829	1463	1097	440	2180	- 2620		110	11.4	-	9.6
2032	1626	1219	490	2430	- 2920		120	11.4	-	9.6
2134	1707	1280	520	2550	- 3060		120	11.4	-	9.6
2286	1829	1372	550	2740	- 3290		130	11.4	-	9.5
2540	2032	1524	610	3050	- 3660		150	11.4	-	9.5
3048	2438	1829	740	3660	- 4400		180	11.4	-	9.5
3810	3048	2286	920	4590	- 5510		220	11.4	-	9.5
4572	3658	2743	1110	5510	- 6610		270	11.3	-	9.5
5080	4064	3048	1230	6130	- 7350		300	11.3	-	9.5
5334	4267	3200	1290	6440	- 7720		310	11.3	-	9.5
6096	4877	3658	1470	7360	- 8830		350	11.3	-	9.5
6858	5486	4115	1660	8290	- 9940		400	11.3	-	9.5
7620	6096	4572	1840	9210	-11050		440	11.3	-	9.5

WARNING

*Installing your projector on the ceiling must be done by a quali- fied 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 dam- aged.

•Do not use the projector where temperatures vary greatly. The pro- jector 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.

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 your remote control to correct the orientation. (See page E-22.)

E-11