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| CIE observer; average normal observer; normal human observer; hypothetical average observer; hypothetical CIE standard observer | |||
| standard observer | |||
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Normalbeobachter : 6 phrases, 3 sujets |
| Éclairage autre que cinéma | 1 |
| Optique branche de la physique | 2 |
| Technologie | 3 |