NEC LT150/LT85 user manual Distance Chart, Ceiling Installation, Reflecting the Image

Distance Chart

Lens Center		C
		Throw Distance
D	Screen Top
B
	Screen Center

α

Lens Offset from Center of Projector

2.97” (75.5mm)

B

C

Throw Distance

Screen Center

Lens Center

D

Screen Bottom 1.5”(38mm)

Projector feet

α

B=Vertical distance between lens center and screen center

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

C=Throw distance α=Throw angle

NOTE: Distances may vary +/-5%.

LT150

		Screen Size
Diagonal		Width		Height			B			C			D		α
inch	mm	inch	mm	inch	mm	inch		mm	inch		mm	inch		mm
36	914	28.8	732	21.6	549	14.5		368	47.2		1200	3.7		94	17.1
40	1016	32	813	24	610	16.1		410	52.8		1340	4.1		105	17.0
60	1524	48	1219	36	914	24.2		614	78.7		2000	6.2		157	17.1
80	2032	64	1626	48	1219	32.2		819	104.7		2660	8.2		209	17.1
100	2540	80	2032	60	1524	40.3		1024	130.7		3320	10.3		262	17.1
120	3048	96	2438	72	1829	48.3		1228	157.1		3990	12.4		314	17.1
150	3810	120	3048	90	2286	60.5		1536	196.1		4980	15.5		393	17.1
180	4572	144	3658	108	2743	72.6		1843	235.0		5970	18.5		471	17.2
200	5080	160	4064	120	3048	80.6		2048	261.0		6630	20.6		524	17.2

LT85

		Screen Size
Diagonal		Width		Height			B			C			D		α
inch	mm	inch	mm	inch	mm	inch		mm	inch		mm	inch		mm
36	914	28.8	732	21.6	549	14.9		378	47.2		1200	4.1		104	17.5
40	1016	32	813	24	610	16.7		425	54.7		1390	4.7		120	17.0
60	1524	48	1219	36	914	25.1		637	81.9		2080	7.1		180	17.0
80	2032	64	1626	48	1219	33.5		850	108.7		2760	9.5		240	17.1
100	2540	80	2032	60	1524	41.8		1062	135.8		3450	11.8		300	17.1
120	3048	96	2438	72	1829	50.2		1274	162.6		4130	14.2		360	17.1
150	3810	120	3048	90	2286	62.8		1594	203.5		5170	17.8		451	17.1
180	4572	144	3658	108	2743	75.3		1913	244.1		6200	21.3		541	17.1
200	5080	160	4064	120	3048	83.7		2125	270.9		6880	23.7		601	17.2

Ceiling Installation

WARNING

* Do not attempt to install the projector yourself.

•Only use your projector on a solid, level surface. If the projec- tor 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 pro- jector 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 ▲▼ buttons on your remote control to correct the orientation. (See page E-40.)

E–20