Viewing distances
Earlier than deciding on a specific show expertise dimension, it is extremely necessary to calculate at what distances it will be considered from. Because the show dimension will increase so does the perfect viewing distance. Bernard J. Lechner, whereas working for RCA, studied the perfect viewing distances for varied situations and derived the so-called Lechner distance.
As a rule of thumb, the viewing distance ought to be roughly two to a few occasions the display screen dimension for normal definition (SD) shows.
| Display screen dimension (in) | Viewing distance (ft) | Viewing distance (m) |
|---|---|---|
| 15?26 | 5?eight | 1.5-2.Four |
| 26?32 | eight?11.5 | 2.Four-Three.5 |
| 32?42 | 11.5?13 | Three.5-Four |
| 42?55 | >13 | >Four |
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