16
Installing the Projector (Cont.)
Projection Distance and Screen Size
■
This projector uses a fixed forcal length lens.
■
The projection distance that can be focused is approx. 0.76 to 4.14 m. Install the projector within this range.
Screen
Install the projector so the center
of the projection screen is at the
same height as the lens’ center
line.
Screen with 4 : 3 aspect ratio
■
Change of projection screen
according to aspect ratio
Screen with 16 : 9 aspect ratio
Center line of the lens
90°
90°
90°
*Also, refer to the table of “Relationship Between Projection Distances and Projection Screen Sizes” on page 17 as a reference.
CAUTIONS and NOTES
• Install the screen so the center of the projected picture aligns with the extended center line of the projector’s lens. That
way, the center of the picture projected on a 4 : 3 aspect ratio screen aligns with the extended center line of the lens. Also,
the screen must be at right angles with the extended center line of the lens (so that projection occurs at right angles with
the screen).
• When installing the screen, use a 4 : 3 aspect ratio picture.
(A 16 : 9 aspect ratio picture is projected based on the width of the range in which a 4 : 3 aspect ratio picture is projected.)
• The diagonal length of a 16 : 9 aspect ratio picture is about 91.8% that of a 4 : 3 aspect ratio picture. This value is a guide
and should be used as a reference.
• If sunlight or lamp light strikes the projection screen directly, the picture becomes whitish and dim. Be sure to use a
curtain, etc. to shield the light.
• Trapezoidal distortion may not be corrected.
Adjust the projector within the range of angle adjustment (up/down adjustment angle: +7°; horizontal adjustment angle:
±1.5°) so that it is set up level.
• The numeric values listed in the table of Relationship between Projection Distances and Screen Sizes on page 17 are
provided only as a guide or reference. The projection sizes may vary within manufacturing tolerances of the projection
lens.
Projection screen size
(diagonal length)
Projection distance
When screen aspect ratio is 4 : 3 When screen aspect ratio is 16 : 9
36.7”
(approx. 93 cm)
approx. 2.49 ft (0.76 m)
50”
(approx. 127 cm)
approx. 3.15 ft (0.96 m)
approx. 3.44 ft (1.05 m)
100”
(approx. 254 cm)
approx. 6.46 ft (1.97 m)
approx. 7.09 ft (2.16 m)
150”
(approx. 381 cm)
approx. 9.74 ft (2.97 m)
approx. 10.69 ft (3.26 m)
200”
(approx. 508 cm)
approx. 13.06 ft (3.98 m)
S15U/EN[15-25]
99.12.22, 11:38
16
Summary of Contents for DLA-S15U - D-ila Projector, 1:1 Fixed Lens
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Page 60: ...1 FRANÇAIS PROJECTEUR DLA S15U MANUEL D INSTRUCTIONS ...
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