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Kattalashtirib ko'rsatuvchi ko'zgu
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Kattalashtiruvchi oyna yoki lupa(koreys tilida 돋보기) — buyum tasvirini kattalashtirish uchun yasalgan qavariq linza . Odatda tutqichli jantga ega.
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Shuningdek, jarrohlar, stomatologlar, zargarlar va soatsozlar tomonidan ishlatiladigan kichik lupaga lupa deyiladi. Lupalar Rojer Bekon tomonidan ixtiro qilingan.