Ombre et penombre Flashcards

1
Q

Type de source lumineuse

A

Etendue et ponctuelle

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2
Q

Etendue

A

Lumiere vient de plusieurs points, a ombre pénombre et clarté

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3
Q

Pnctuelle

A

Lumiere vient de un point, A ombre et clarté

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4
Q

Quantité de lumiere

A

Faisceau: cone
Pinceau: Cylindre
Rayon: cylindre mince

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5
Q

Ombre

A

Pas lumiere écran noir

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6
Q

Penombre

A

Partielle lumiere écran gris

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7
Q

Clarte

A

Toute lumiere écran blanc

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8
Q

Condition qui favorise la production ombre plus nette

A

1.Rapproche écran a obstacle
2.Eloigne source de l’obstacle
3.Diminue taille de la source
4.Augment taille de l’obstacle

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