|
| NEC Corporation of America |
|
| Visual Systems Division |
NP40/50/60 Installation Guide |
| |
Ceiling Mounted and Desktop | Rev 1.0 | |
Diagrams and Distance Charts
The following diagrams show the relationship between projector position and the screen. Refer to the chart below for data. Distances are in inches. For millimeters multiply by 25.4.
Ceiling Mounted
Desktop
| C | 4.75" |
| Throw Distance | |
|
| |
Lens Ctr |
| 5.71" |
|
| |
D | Screen Top |
|
|
| |
| B |
|
Screen Ctr |
| Lens Offset From |
|
| Mount Pipe |
NEC |
1.95" |
C |
Throw Distance |
Screen Ctr |
B |
D |
Lens Ctr |
Screen Bottom |
2.28" |
Distance Chart for popular 4:3 screens
Screen Size |
| B |
| C |
| D |
| α |
| ||
Diagonal | Width |
| Height |
| wide | - | tele |
| wide | - | tele |
inch | inch |
| inch | inch |
| inch |
| inch |
| degree |
|
33 | 26 |
| 20 | 13 |
| - | 57 | 3 |
| - | 12.6 |
60 | 48 |
| 36 | 23 | 87 | - | 104 | 5 | 14.9 | - | 12.4 |
72 | 58 |
| 43 | 28 | 104 | - | 126 | 6 | 14.9 | - | 12.4 |
84 | 67 |
| 50 | 32 | 122 | - | 147 | 7 | 14.8 | - | 12.4 |
90 | 72 |
| 54 | 35 | 131 | - | 157 | 8 | 14.8 | - | 12.4 |
100 | 80 |
| 60 | 38 | 145 | - | 175 | 8 | 14.8 | - | 12.3 |
120 | 96 |
| 72 | 46 | 174 | - | 210 | 10 | 14.8 | - | 12.3 |
150 | 120 |
| 90 | 58 | 219 | - | 263 | 13 | 14.7 | - | 12.3 |
180 | 144 |
| 108 | 69 | 263 | - | 317 | 15 | 14.7 | - | 12.3 |
200 | 160 |
| 120 | 77 | 292 | - | 352 | 17 | 14.7 | - | 12.3 |
260 | 208 |
| 156 | 100 | 380 | - | 458 | 22 | 14.7 | - | 12.3 |
300 | 240 |
| 180 | 115 | 439 | - | 529 | 25 | 14.7 | - | 12.3 |
Note: For screen sizes not indicated on the projection table, use the formulas on page 1.
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