Magalasi a MWIR

Mid-wave infrared lensndi (Lens ya MWIRes) ndi zigawo zofunika kwambiri zomwe zimagwiritsidwa ntchito pazinthu zosiyanasiyana zomwe zimafuna kujambula kutentha, monga kuyang'anitsitsa, kupeza zolinga, ndi kusanthula kutentha. Magalasi awa amagwira ntchito m'chigawo chapakati cha mafunde apakati pa ma electromagnetic spectrum, nthawi zambiri pakati pa 3 ndi 5 ma microns (3-5um mandala), ndipo amapangidwa kuti aziyang'ana ma radiation a infrared pamtundu wa detector.
Magalasi a MWIR amapangidwa kuchokera kuzinthu zomwe zimatha kutumiza ndikuwunikira ma radiation a IR mkati mwa dera la MWIR. Zida zomwe zimagwiritsidwa ntchito kwambiri pamagalasi a MWIR ndi germanium, silicon, ndi magalasi a chalcogenide. Germanium ndiye chinthu chomwe chimagwiritsidwa ntchito kwambiri pamagalasi a MWIR chifukwa cha index yake yayikulu yowoneka bwino komanso mawonekedwe abwino opatsirana mumtundu wa MWIR.
Ma lens a MWIR amabwera m'mapangidwe osiyanasiyana ndi masanjidwe, kutengera momwe akufunira. Chimodzi mwazojambula zodziwika bwino ndi mandala osavuta a plano-convex, omwe amakhala ndi malo athyathyathya ndi amodzi opingasa. Lens iyi ndi yosavuta kupanga ndipo imagwiritsidwa ntchito pazinthu zambiri pomwe pamafunika makina ojambulira. Mapangidwe ena amaphatikiza ma lens owirikiza, omwe amakhala ndi ma lens awiri okhala ndi ma indices osiyanasiyana, ndi ma zoom lens, omwe amatha kusintha utali wapakatikati kuti ayande kapena kutulutsa chinthu.
Magalasi a MWIR ndi gawo lofunikira pamakina ambiri ojambulira omwe amagwiritsidwa ntchito m'mafakitale osiyanasiyana. M'magulu ankhondo, ma lens a MWIR amagwiritsidwa ntchito pamakina owunikira, machitidwe owongolera mizinga, ndi njira zopezera chandamale. M'mafakitale, ma lens a MWIR amagwiritsidwa ntchito pakuwunika kwamafuta ndi machitidwe owongolera. M'zinthu zamankhwala, ma lens a MWIR amagwiritsidwa ntchito pojambula kutentha kwa matenda osasokoneza.
Chinthu chimodzi chofunikira posankha lens ya MWIR ndi kutalika kwake. Kutalika kwa lens kumatsimikizira mtunda pakati pa lens ndi detector array, komanso kukula kwa chithunzi chomwe chimapangidwa. Mwachitsanzo, mandala okhala ndi utali wofupikitsa wolunjika atulutsa chithunzi chachikulu, koma chithunzicho sichidzafotokozedwa mwatsatanetsatane. Lens yokhala ndi nthawi yayitali imatulutsa chithunzi chaching'ono, koma chithunzicho chizikhala chatsatanetsatane, monga50mm MWIR Lens.

Chinthu chinanso chofunikira ndikuthamanga kwa lens, komwe kumatsimikiziridwa ndi f-nambala yake. F-nambala ndi chiyerekezo cha kutalika kwa kutalika kwa mainchesi a lens. Lens yokhala ndi f-nambala yotsika idzakhala yachangu, kutanthauza kuti imatha kujambula kuwala kochulukirapo pakanthawi kochepa, ndipo nthawi zambiri imakondedwa mukamawala kwambiri.
Pomaliza, magalasi a MWIR ndi gawo lofunikira pamakina ambiri ojambula omwe amagwiritsidwa ntchito m'mafakitale osiyanasiyana. Amapangidwa kuti aziyang'ana ma radiation a infrared pa detector array ndipo amabwera m'mapangidwe ndi masinthidwe osiyanasiyana, kutengera momwe akufunira.