honeycomb fresnel lens

translations in German

• Bienenwabenlinse

translations in Spanish

• lente martillado

translations in French

• lentille martelée

translations in Italian

• lente fresnel martellata

translations in Portuguese

• lente ninho de abelha

translations in Chinese

• 带控光片的菲涅尔透镜 - kai kong guang pian de fei nie er tou jing

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