Installing the Projector (Cont.)
Lens Shift Function (Cont.)
Maximum amount of shift
The maximum amount of vertical shift is restricted by the amount of horizontal shift made.
Py(%)
Screen after shifted
The amount of shift is defined as follows:
With the screen width taken as 1, horizontal shift is defined as a ratio (%) of the screen width, while with the screen height taken as 1, vertical shift is defined as a ratio (%) of the screen height.
Vertical screen size
(y): 100%
Screen with zero (0) shift
Horizontal screen sized
(x): 100%
Px
(%)
Relational table for maximum shift amounts (aspect ratio 4 : 3)
Py(%) | Px(%) | Py(%) | Px(%) | Py(%) | Px(%) | Py(%) | Px(%) | Py(%) | Px(%) |
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0.0 | 32.0 | 10.0 | 28.1 | 20.0 | 23.3 | 30.0 | 17.3 | 40.0 | 9.7 |
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1.0 | 31.6 | 11.0 | 27.7 | 21.0 | 22.7 | 31.0 | 16.6 | 41.0 | 8.9 |
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2.0 | 31.3 | 12.0 | 27.2 | 22.0 | 22.2 | 32.0 | 15.9 | 42.0 | 8.0 |
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3.0 | 30.9 | 13.0 | 26.8 | 23.0 | 21.6 | 33.0 | 15.2 | 43.0 | 7.1 |
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4.0 | 30.5 | 14.0 | 26.3 | 24.0 | 21.0 | 34.0 | 14.5 | 44.0 | 6.2 |
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5.0 | 30.1 | 15.0 | 25.8 | 25.0 | 20.4 | 35.0 | 13.7 | 45.0 | 5.2 |
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6.0 | 29.8 | 16.0 | 25.3 | 26.0 | 19.8 | 36.0 | 13.0 | 46.0 | 4.2 |
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7.0 | 29.4 | 17.0 | 24.8 | 27.0 | 19.2 | 37.0 | 12.2 | 47.0 | 3.2 |
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8.0 | 28.9 | 18.0 | 24.3 | 28.0 | 18.6 | 38.0 | 11.4 | 48.0 | 2.2 |
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9.0 | 28.5 | 19.0 | 23.8 | 29.0 | 17.9 | 39.0 | 10.6 | 49.0 | 1.2 |
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| 50.0 | 0.0 |
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Relational table for maximum shift amounts (aspect ratio 16 : 9)
Py(%) | Px(%) | Py(%) | Px(%) | Py(%) | Px(%) | Py(%) | Px(%) | Py(%) | Px(%) |
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0.0 | 32.0 | 10.0 | 29.2 | 20.0 | 25.8 | 30.0 | 21.9 | 40.0 | 17.3 |
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1.0 | 31.7 | 11.0 | 28.8 | 21.0 | 25.1 | 31.0 | 21.5 | 41.0 | 16.8 |
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2.0 | 31.4 | 12.0 | 28.5 | 22.0 | 24.7 | 32.0 | 21.0 | 42.0 | 16.2 |
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3.0 | 31.2 | 13.0 | 28.2 | 23.0 | 24.3 | 33.0 | 20.6 | 43.0 | 15.7 |
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4.0 | 30.9 | 14.0 | 27.9 | 24.0 | 23.9 | 34.0 | 20.1 | 44.0 | 15.2 |
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5.0 | 30.6 | 15.0 | 27.6 | 25.0 | 23.9 | 35.0 | 19.7 | 45.0 | 14.6 |
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6.0 | 30.3 | 16.0 | 27.2 | 26.0 | 23.5 | 36.0 | 19.2 | 46.0 | 14.1 |
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7.0 | 30.0 | 17.0 | 26.9 | 27.0 | 23.1 | 37.0 | 18.7 | 47.0 | 13.5 |
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8.0 | 29.8 | 18.0 | 26.5 | 28.0 | 22.7 | 38.0 | 18.3 | 48.0 | 13.0 |
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9.0 | 29.5 | 19.0 | 26.2 | 29.0 | 22.3 | 39.0 | 17.8 | 49.0 | 12.4 |
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Py(%) | Px(%) | Py(%) | Px(%) |
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50.0 | 11.8 | 60.0 | 5.2 |
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51.0 | 11.2 | 61.0 | 4.5 |
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52.0 | 10.6 | 62.0 | 3.7 |
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53.0 | 10.0 | 63.0 | 3.0 |
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54.0 | 9.3 | 64.0 | 2.2 |
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55.0 | 8.7 | 65.0 | 1.4 |
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56.0 | 8.0 | 66.7 | 0.0 |
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57.0 | 7.3 |
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58.0 | 6.6 |
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59.0 | 5.9 |
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ENGLISH
23
