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< LV-8310/LV-8215 >
Use this guide when considering the distance to the screen and the screen size.
• The ceiling mount unit can be adjusted up and down a maximum of +/−10°, but if too much
of an angle is taken the image will show some distortion. Therefore, it is recommended that an
adjustment is made in conjunction with the screen projection angle.
• Recommended screen sizes for projectors are from 21 inches to 300 inches. (Screen sizes
represent the diagonal dimension.)
Optional axis when image is projected at
(*1)
113.9 mm
right angle to the screen.
33"
40"
(*2)
1.3 m
2.6 m
(*1) Distance from center of fixed ceiling part to end of main unit lens.
(*2) Distance of lens center from ceiling mount surface of fixed ceiling part.
(*3) The angle is 7.9 to 8.3° using a telephoto setting for distances from lens center (horizontal) to screen center.
(*4) The angle is 9.5 to 9.9° using a wide angle setting for distances from lens center (horizontal) to screen center.
Throw Distance and Screen Size
21"
Screen size
(W×H) cm
45×28
Projection
distance
–
Zoom (max)
Projection
0.8 m
distance
(2.6')
Zoom (min)
26 cm
H1
(0.8')
2 cm
H2
(0.1')
H1 and H2: H1 is the height of the screen from the intersection of optical axis and screen surface, and H2 is the height
of the intersection when an image is projected at right angle to the screen.
Using the Diagrams
Referring to the diagram, screen sizes that can be used at a projection distance of 3 m will range from 80
inches to 90 inches.
To project to a screen size of 180 inches, the projection distance will range from 6.0 to 7.2 m according to
the diagram.
See Page ENG-9 for the vertical and horizontal dimensions of the screen size.
Guide to Screen Size and Projector Mounting Position
65"
125"
80"
150"
5.0 m
6.6 m
9.9 m (Zoom max.)
12.0 m (Zoom min.)
25"
30"
40"
54×34
65×40
86×54
0.8 m
1.0 m
1.3 m
(2.6')
(3.2')
(4.2')
1.0 m
1.2 m
1.6 m
(3.2')
(3.8')
(5.1')
31 cm
37 cm
49 cm
(1.0')
(1.2')
(1.6')
3 cm
4 cm
5 cm
(0.1')
(0.1')
(0.2')
Screen
165"
200"
60"
80"
100"
129×81 172×108 215×135 323×202 388×242 431×269 538×337 646×404
2.0 m
2.6 m
3.3 m
(6.4')
(8.6')
(10.8')
2.4 m
3.2 m
4.0 m
(7.7')
(10.4')
(13.0')
74 cm
98 cm
123 cm
184 cm
(2.4')
(3.2')
(4.0')
7 cm
9 cm
12 cm
(0.2')
(0.3')
(0.4')
ENG-7
(*4)
248"
300"
300"
Zoom (max.)
150"
180"
200"
5.0 m
6.0 m
6.6 m
(16.3')
(19.5')
(21.7')
6.0 m
7.2 m
8.0 m
10.0 m
(19.5')
(23.5')
(26.1')
221 cm
246 cm
307 cm
(6.0')
(7.3')
(8.1')
18 cm
21 cm
24 cm
(0.6')
(0.7')
(0.8')
H2
(*3)
H1
Zoom (min.)
250"
300"
8.3 m
9.9 m
(27.2')
(32.6')
12.0 m
(32.7')
(39.2')
369 cm
(10.1')
(12.1')
29 cm
35 cm
(1.0')
(1.2')
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