Chapter 2 Getting
[VERTICAL KEYSTONE] (viewed from the side) | [HORIZONTAL KEYSTONE] (viewed from above) |
Screen | Screen |
Vertical arc correction (viewed from the side) | Horizontal arc correction (viewed from above) |
Projection distance | Projection distance |
Arc radius | Arc radius |
Screen | Screen |
Arc center |
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| Arc center |
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| Screen |
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| Screen |
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| Projection distance |
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| Projection distance | ||
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| Arc radius |
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| Arc radius |
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| Only for [KEYSTONE] | [KEYSTONE] and [CURVED] used together | Only for [CURVED] | |||||
Projection | Vertical | Horizontal | Vertical | Horizontal |
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lens Model | keystone | keystone | keystone | keystone | Min. value of | Min. value of | Min. value of | Min. value of |
No. | correction | correction | correction | correction | R2/L2 | R3/L3 | R2/L2 | R3/L3 |
| angle α (°) | angle β (°) | angle α (°) | angle β (°) |
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ET‑D75LE1 | ±40 | ±15 | ±20 | ±15 | 1.0 | 2.3 | 0.6 | 1.3 |
ET‑D75LE2 | ±40 | ±15 | ±20 | ±15 | 0.8 | 1.6 | 0.5 | 0.9 |
ET‑D75LE3 | ±40 | ±15 | ±20 | ±15 | 0.6 | 1.1 | 0.3 | 0.6 |
ET‑D75LE4 | ±40 | ±15 | ±20 | ±15 | 0.4 | 0.7 | 0.2 | 0.4 |
ET‑D75LE5 | ±22 | ±15 | ±8 | ±8 | 2.0 | 4.9 | 1.2 | 2.9 |
ET‑D75LE6 | ±28 | ±15 | ±10 | ±10 | 1.6 | 3.9 | 0.9 | 2.3 |
ET‑D75LE8 | ±40 | ±15 | ±20 | ±15 | 0.2 | 0.4 | 0.2 | 0.3 |
ET‑D75LE10 | ±40 | ±15 | ±20 | ±15 | 1.1 | 2.6 | 0.6 | 1.5 |
ET‑D75LE20 | ±40 | ±15 | ±20 | ±15 | 0.9 | 1.7 | 0.5 | 1.0 |
ET‑D75LE30 | ±40 | ±15 | ±20 | ±15 | 0.6 | 1.2 | 0.4 | 0.7 |
ET‑D75LE40 | ±40 | ±15 | ±20 | ±15 | 0.4 | 0.7 | 0.2 | 0.4 |
ET‑D75LE50 | ±22 | ±15 | ±8 | ±8 | 2.0 | 4.9 | 1.2 | 2.9 |
Note
ff When [GEOMETRY] is used, the focus of the entire screen may be lost as correction increases. ff Make the curved screen a circular arc shape with one part of a perfect circle removed.
ENGLISH - 37