Projection Distance And Screen Size - JVC DLA-M20U Instructions Manual

Installing the Projector (Cont.)

Projection Distance and Screen Size

The projection lens used in this projector is a 1.5 : 1, short focal-distance lens (with a manual shift function).
The range of projection distances that can be focused is 60" screen (approx. 1.76 m) to 150" screen (approx. 4.499
m) when the aspect ratio of the screen is 4:3.
With this projector, the projection screen can be shifted up and down in position within the range of approx. 30% to
55%. The amount of shift shown in the illustration is 50% shifting which corresponds to the factory setting. See
page 17 for "Setting the Amount of Lens Shifting".
Screen
90°
When the amount of shift is
selected to be 50% (factory
setting), set the screen so that its
bottom edge is the same height as
the center line of the lens.
Relationship between Projection Distances and Projection Screen Sizes
Projectionscreen size
(Diagonal length)
55" (approx. 139.7 cm)
60" (approx. 152.4 cm)
65" (approx. 165.1 cm)
70" (approx. 177.8 cm)
75" (approx. 190.5 cm)
80" (approx. 203.2 cm)
85" (approx. 215.9 cm)
90" (approx. 228.6 cm)
95" (approx. 241.3 cm)
100" (approx. 254.0 cm)
105" (approx. 266.7 cm)
110" (approx. 279.4 cm)
115" (approx. 292.1 cm)
120" (approx. 304.8 cm)
125" (approx. 317.5 cm)
130" (approx. 330.2 cm)
135" (approx. 342.9 cm)
140" (approx. 355.6 cm)
145" (approx. 368.3 cm)
150" (approx. 381.0 cm)
* The projection screen sizes (recommended) and projection distances listed above are only for a guide. Use them as
reference when setting the projector.
* This projector is designed to allow the screen size to be fine-adjusted approx. ±2%. The above listing shows the values
with ±0% adjustment (standard).
16
Screen with 4 : 3 aspect ratio
90° 90°
Center line of the lens
For 4 : 3 aspect-ratio screens
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approx. 1.760 m (approx. 5.77 ft)
approx. 1.912 m (approx. 6.27 ft)
approx. 2.064 m (approx. 6.77 ft)
approx. 2.216 m (approx. 7.27 ft)
approx. 2.368 m (approx. 7.77 ft)
approx. 2.520 m (approx. 8.27 ft)
approx. 2.672 m (approx. 8.76 ft)
approx. 2.825 m (approx. 9.27 ft)
approx. 2.976 m (approx. 9.76 ft)
approx. 3.129 m (approx. 10.26 ft)
approx. 3.281 m (approx. 10.76 ft)
approx. 3.433 m (approx. 11.26 ft)
approx. 3.585 m (approx. 11.76 ft)
approx. 3.738 m (approx. 12.26 ft)
approx. 3.890 m (approx. 12.76 ft)
approx. 4.042 m (approx. 13.26 ft)
approx. 4.194 m (approx. 13.76 ft)
approx. 4.347 m (approx. 14.26 ft)
approx. 4.499 m (approx. 14.76 ft)
Change of projection screen
according to aspect ratio
Screen with 16 : 9 aspect ratio
Projection distance
For 16 : 9 aspect-ratio screens
approx. 1.826 m (approx. 5.99 ft)
approx. 1.917 m (approx. 6.29 ft)
approx. 2.083 m (approx. 6.83 ft)
approx. 2.249 m (approx. 7.38 ft)
approx. 2.414 m (approx. 7.92 ft)
approx. 2.580 m (approx. 8.46 ft)
approx. 2.745 m (approx. 9.00 ft)
approx. 2.911 m (approx. 9.55 ft)
approx. 3.078 m (approx. 10.10 ft)
approx. 3.242 m (approx. 10.63 ft)
approx. 3.409 m (approx. 11.18 ft)
approx. 3.575 m (approx. 11.73 ft)
approx. 3.740 m (approx. 12.27 ft)
approx. 3.906 m (approx. 12.81 ft)
approx. 4.072 m (approx. 13.36 ft)
approx. 4.238 m (approx. 13.90 ft)
approx. 4.404 m (approx. 14.45 ft)
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