Dukane 8805 user manual 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)

Screen Bottom

Lens Center

Throw Angle (￿)

Throw Distance (C)

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

α= Throw angle

NOTE: Distances may vary +/-5%.

	Screen Size		B		C			α
Diagonal	Width	Height		Wide – Tele			Wide – Tele
inch	inch	inch	inch		inch		degree
25	20	15	8.0	–––	-	39.6	–––	-	10.7
30	24	18	9.0	35.1	-	47.8	14.4	-	10.7
40	32	24	12.0	47.4	-	64.4	14.2	-	10.5
60	48	36	18.0	72.1	-	97.6	14.0	-	10.4
67	54	40	20.0	80.7	-	109.2	14.0	-	10.4
72	58	43	22.0	86.9	-	117.5	14.0	-	10.4
80	64	48	24.0	96.8	-	130.8	13.9	-	10.4
84	67	50	25.0	101.7	-	137.4	13.9	-	10.4
90	72	54	27.0	109.1	-	147.4	13.9	-	10.4
100	80	60	30.0	121.4	-	164.0	13.9	-	10.4
120	96	72	36.0	146.1	-	197.2	13.8	-	10.3
150	120	90	45.0	183.1	-	246.9	13.8	-	10.3
180	144	108	54.0	220.1	-	296.7	13.8	-	10.3
200	160	120	60.0	244.8	-	329.9	13.8	-	10.3
210	168	126	63.0	257.1	-	346.5	13.8	-	10.3
240	192	144	72.0	294.1	-	396.3	13.8	-	10.3
261	209	157	78.0	320.0	-	431.1	13.7	-	10.3
270	216	162	81.0	331.1	-	446.0	13.7	-	10.3
300	240	180	90.0	368.1	-	495.8	13.7	-	10.3
350	280	210	105.0	429.8	-	578.7	13.7	-	10.3
400	320	240	120.0	491.5	-	–––	13.7	-	–––
450	360	270	135.0	553.2	-	–––	13.7	-	–––
500	400	300	150.0	614.8	-	–––	13.7	-	–––
	Screen Size		B		C			α
Diagonal	Width	Height		Wide – Tele			Wide – Tele
mm	mm	mm	mm		mm		degree
635	508	381	191	–––	-	1005	–––	- 10.7
762	610	457	229	891	-	1215	14.4	-	10.7
1016	813	610	305	1204	-	1636	14.2	-	10.5
1524	1219	914	457	1831	-	2479	14.0	-	10.4
1702	1361	1021	511	2050	-	2774	14.0	-	10.4
1829	1463	1097	549	2207	-	2985	14.0	-	10.4
2032	1626	1219	610	2458	-	3322	13.9	-	10.4
2134	1707	1280	640	2583	-	3490	13.9	-	10.4
2286	1829	1372	686	2771	-	3743	13.9	-	10.4
2540	2032	1524	762	3084	-	4165	13.9	-	10.4
3048	2438	1829	914	3711	-	5007	13.8	-	10.3
3810	3048	2286	1143	4651	-	6272	13.8	-	10.3
4572	3658	2743	1372	5591	-	7536	13.8	-	10.3
5080	4064	3048	1524	6217	-	8379	13.8	-	10.3
5334	4267	3200	1600	6531	-	8800	13.8	-	10.3
6096	4877	3658	1829	7471	- 10064		13.8	-	10.3
6629	5304	3978	1989	8129	- 10949		13.7	-	10.3
6858	5486	4115	2057	8410	- 11328		13.7	-	10.3
7620	6096	4572	2286	9350	- 12593		13.7	-	10.3
8890	7112	5334	2667	10917	- 14700		13.7	-	10.3
10160	8128	6096	3048	12484	-	–––	13.7	- –––
11430	9144	6858	3429	14050	-	–––	13.7	- –––
12700	10160	7620	3810	15617	-	–––	13.7	- –––

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.

•To avoid premature lamp failure, do not tilt the front of the projector up or down by more than 15° from level.

•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 buttons on your re- mote control to correct the orientation. (See page E-44.)

E-13