Igwe anya igwe dị elu
Lens lekwasịrị anya: Akụkụ oghere mgbado anya jikọtara oghere nwere ụdị okirikiri nke nwere lens convex lenticular iji dozie aberration dị okirikiri, wee nweta ntụpọ dị nta ka ọ rute ume ume na mmetụta dị nkọ.
Lens Collimator: Akụkụ Collimator na-agbanwe ọkụ nnyefe ka ọ bụrụ ọkụ agbakọtara site na igwe ịsa akwa, mgbanaka mgbanaka na oghere mbubata nwere njirimara nke obere olu na mfu dị ala.
