Installation
Projection schemes
Any of the following four projection schemes can be used with the
Projection Scheme 2
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| Table standing | Ceiling mount |
Scheme 1 | Front projection | (Default position) |
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Projection | Rear projection |
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Installation geometry
After the projector is roughly positioned, picture size and vertical picture positioning can be finely adjusted with the powered zoom lens and lens tilt mechanism.
Side view
With optional ceiling mount |
| 346 | 422 |
bracket |
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H |
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L |
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SH | 180 | 261 |
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H
Screen
L: Projection distance SH : Image height
SW : Image width
H : Distance from center of lens to bottom edge of projected image.
Top view
SW |
| L | 314 |
| 157 | ||
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| 87.5 |
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| Screen | 175 |
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Projection distances
Listed in the table below are the projection distances of the standard lens provided with the
Refer to page 57 for the projection distances of the projection lenses available as optional accessories.
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| Unit : m ( | ) : inch [ ] : foot | ||
Screen Size (4 : 3) | Projection distance: L | Height | ||||
Diagonal | Height | Width | Minimum | Maximum | position: H | |
length (SD) | (SH) | (SW) | (LW) | (LT) | ||
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1.27 | 0.76 | 1.02 | 1.79 | 2.38 | 0 to 0.38 | |
(50") | [2'5''] | [3'4''] | [5'10''] | [7'9''] | (0 to 14 61/64) | |
1.52 | 0.91 | 1.22 | 2.16 | 2.87 | 0 to 0.46 | |
(60") | [2'11''] | [4'] | [7'1''] | [9'4''] | (0 to 18 7/64) | |
1.78 | 1.07 | 1.42 | 2.53 | 3.35 | 0 to 0.53 | |
(70") | [3'6''] | [4'7''] | [8'3''] | [10'11''] | (0 to 20 55/64) | |
2.03 | 1.22 | 1.63 | 2.90 | 3.84 | 0 to 0.61 | |
(80") | [4'] | [5'4''] | [9'6''] | [12'7''] | (0 to 24 1/64) | |
2.29 | 1.37 | 1.83 | 3.27 | 4.33 | 0 to 0.69 | |
(90") | [4'5''] | [6'] | [10'8''] | [14'2''] | (0 to 27 11/64) | |
2.54 | 1.52 | 2.03 | 3.64 | 4.82 | 0 to 0.76 | |
(100") | [4'11''] | [6'7''] | [11'11''] | [15'9''] | (0 to 29 59/64) | |
3.05 | 1.83 | 2.44 | 4.38 | 5.80 | 0 to 0.91 | |
(120") | [6'] | [8'] | [14'4''] | [19'] | (0 to 35 53/64) | |
3.81 | 2.29 | 3.05 | 5.49 | 7.26 | 0 to 1.14 | |
(150") | [7'6''] | [10'] | [18'] | [23'9''] | (0 to 44 7/8) | |
5.08 | 3.05 | 4.06 | 7.34 | 9.70 | 0 to 1.52 | |
(200") | [10'] | [13'3''] | [24'] | [31'9''] | (0 to 59 27/32) | |
6.35 | 3.81 | 5.08 | 9.20 | 12.14 | 0 to 1.91 | |
(250") | [12'6''] | [16'8''] | [30'2''] | [39'9''] | (0 to 75 13/64) | |
7.62 | 4.57 | 6.10 | 11.05 | 14.59 | 0 to 2.29 | |
(300") | [14'11''] | [20'] | [36'3''] | [47'10''] | (0 to 90 5/32) | |
8.89 | 5.33 | 7.11 | 12.90 | 17.03 | 0 to 2.67 | |
(350") | [17'5''] | [23'3''] | [42'3''] | [55'10''] | (0 to 105 1/8) | |
10.16 | 6.10 | 8.13 | 14.75 | 19.47 | 0 to 3.05 | |
(400") | [20'] | [26'8''] | [48'4''] | [63'10''] | (0 to 120 5/64) | |
12.70 | 7.62 | 10.16 | 18.46 | 24.35 | 0 to 3.81 | |
(500") | [25'] | [33'4''] | [60'6''] | [79'10''] | (0 to 150) | |
15.24 | 9.14 | 12.19 | 22.16 | 29.24 | 0 to 4.57 | |
(600") | [29'11''] | [39'11''] | [72'8''] | [95'11''] | (0 to 179 59/64) | |
LW = 0.0370 x SD – 0.0650 LT = 0.0488 x SD – 0.0638 (LW,LT: m SD: inch)
For 16 : 9 aspect rations, the following formal can be used to calculate the screen width (SW).
SW = (SD x 0.0254) x 16 ÷ 337
The value for SW obtained above can then be used with the following function to calculate the projection distance for the wide lens position (LW) and the projection distance for the telephoto lens position (LT).
LW = 1.823 x SW – 0.0650 LT = 2.403 x SW – 0.0638
Note • The dimensions in the table above and the values obtained from the above formulas may contain slight errors.
•It is recommended that you use the projection distance for the wide lens position.
•The above dimensions are the case when the aspect ratio is 4:3. When an SXGA signal is input and projected, the right and left ends of the picture will be blanked the aspect ratio will be 5:4.
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