ray-optics approximation

• 1 ray-optics approximation

• 2 ray-optics approximation

ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΡΠΈΠΊΠΈ, ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π»ΡΡΠ΅Π²ΠΎΠΉ ΠΎΠΏΡΠΈΠΊΠΈ
• 3 ray-optics approximation

ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π³Π΅ΠΎΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠΏΡΠΈΠΊΠΈ, ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π»ΡΡΠ΅Π²ΠΎΠΉ ΠΎΠΏΡΠΈΠΊΠΈ

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