Infocus XS1 ユーザーズマニュアル

Positioning your projector

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InFocus has provided a table of 4:3-aspect-ratio screen sizes to assist you in 

determining the ideal location for your projector. There are two dimensions to 

consider, the perpendicular horizontal distance from the center of the screen 

(projection distance), and the vertical offset height of the projector from the 

horizontal edge of the screen (offset).

1.

Select your screen size.

2.

Refer to the table and find the closest match to your screen size in the left 
columns labelled 

. Using this value, look across this row 

to the right to find the corresponding average distance from screen value in 
the column labelled 

. 

This is the projection distance.

3.

On that same row, look across to the right column and make note of the 
Vertical offset value. This will determine the final vertical offset placement of 
the projector in relation to the edge of the screen.

4.

The recommended position for the projector is aligned perpendicular to the 
horizontal center of the screen, at the distance from the screen determined in 
step 2 above, and offset by the value determined in step 3 above.

For example, if you are using a 108 inch screen, the recommended projection 

distance is 1459 mm and with a vertical offset of 165 mm.

If you place the projector in a different position (to that recommended), you will 

have to tilt it down or up to center the image on the screen. In these situations, 

some image distortion will occur. Use the Keystone function to correct the 

distortion. See 

 for details.

This method can be used for situations where you have purchased this projector 

and would like to know what screen size will fit in your room.

The maximum screen size is limited by the physical space available in your room. 

1.

Measure the distance between the projector and where you want to position 
the screen. This is the projection distance.

2.

Refer to the table and find the closest match to your measurement in the 
average distance from screen column labelled 

. 

3.

Using this value, look across that row to the left to find the corresponding 
screen diagonal listed in that row. That is the projected image size of the 
projector at that projection distance.

4.

On that same row, look across to the right column and make note of the 
Vertical offset value. This will determine the final placement of the screen in 
relation to the horizontal plane of the projector. 

For example, if your measured projection distance was 1.5 m (1500 mm), the 

closest match in the 

 

column is 1459 mm. Looking across this row shows that a 9' (108") screen is 

required. If you can only obtain metric sized screens, the screen size is 2743 mm 

diagonally.