NEC LT75Z user manual Distance Chart, Reflecting the Image

Distance Chart

Lens Center

D

B

B

D

Lens Center

α

Screen Top

Screen Center

C

Throw Distance

C

Throw Distance

Screen Center

Screen Bottom

α

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

NOTE: Distances may vary +/-5%.

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

α=Throw angle

		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
30	762	24	610	18	457	13	319	48	1210	–	58	1470	4	90	14.8	–	12.2
40	1016	32	813	24	610	17	425	64	1620	–	78	1970	5	120	14.7	–	12.2
60	1524	48	1219	36	914	25	637	97	2460	–	117	2980	7	180	14.5	–	12.1
67	1702	54	1361	40	1021	28	712	108	2750	–	131	3340	8	201	14.5	–	12.0
72	1829	58	1463	43	1097	30	765	117	2960	–	141	3590	9	216	14.5	–	12.0
80	2032	64	1626	48	1219	33	850	130	3300	–	157	3990	9	240	14.4	–	12.0
84	2134	67	1707	50	1280	35	892	136	3460	–	165	4190	10	252	14.5	–	12.0
90	2286	72	1829	54	1372	38	956	146	3710	–	177	4500	11	270	14.5	–	12.0
100	2540	80	2032	60	1524	42	1062	163	4130	–	197	5000	12	300	14.4	–	12.0
120	3048	96	2438	72	1829	50	1275	196	4970	–	237	6010	14	360	14.4	–	12.0
150	3810	120	3048	90	2286	63	1593	245	6220	–	296	7530	18	450	14.4	–	11.9
180	4572	144	3658	108	2743	75	1912	294	7470	–	356	9040	21	541	14.4	–	11.9
200	5080	160	4064	120	3048	84	2125	327	8310	–	396	10050	24	601	14.3	–	11.9

WARNING

•Installing your projector on the ceiling must be done by a qualified techni- cian. Contact your 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 41°F (5°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 projec- tor.

Reflecting the Image

Using a mirror to reflect your projector’s image enables you to enjoy a much larger image. Con- tact 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 pro- jector cabinet or ▲▼ buttons on your remote con- trol to correct the orientation. (See page E-31.)

E-15