3M MP8030 manual Projector-to-Viewing Screen Alignment

Projector-to-Viewing Screen Alignment

The size of the projection screen and the distance of the projector to the screen are important considerations for determining the best placement of the projector. After the best projector-to-screen distance has been determined, the position of the projection screen in relation to the center of the projection lens must be considered.

	a = Distance to viewing screen
90°	b = Center of lens to bottom of
	projected image
	90°

b

a

Figure 3-9. Top View Figure 3-10. Side View

Measured from the center of the projection lens (Figure 3-9), the projected image should be split equally left to right. For best results, rotate the projector until the image on the projection screen is perpendicular (90°) to the lens.

Measured from the center of the projection lens, the top to bottom projected image (Figure 3-10) is projected with most of the image above the center of the lens and a small amount below the center of the lens. The position of the projected image to the center of the lens is an important consideration for the vertical placement of the projection screen.

Use the table below to calculate the approximate distance (see ªbº in Figure 3-10) from the center of the lens to the bottom of the projected image. Both normal and ceiling mount applications are affected by this distance.

a

Screen

102 cm (40 in.)

152 cm (59 in.)

203 cm (79 in.)

254 cm (99 in.)

305 cm (119 in.)

381 cm (149 in.)

508 cm (198 in.)

Minimum

137 cm (53 in.)

209 cm (82 in.)

282 cm (110 in.)

353 cm (138 in.)

427 cm (167 in.)

533 cm (208 in.)

714 cm (278 in.)

Maximum

223 cm (87 in.)

340 cm (133 in.)

455 cm (177 in.)

569 cm (222 in.)

685 cm (267 in.)

858 cm (335 in.)

1149 cm (448 in.)

b

8 cm (3 in.)

13.2cm (5 in.)

17.5cm (7 in.)

22.1cm (8.6 in.)

26.4cm (10 in.)

33 cm (13 in.)

43 cm (17 in.)

8		Multimedia Projector MP8030	 3M 1996
	3M