Fresnel lens kusuka beacons multimedia ezindaweni

Esikhathini esidlule, le ndlela ogwini kumatilosi kwaba yingozi kakhulu ingxenye yohambo lwazo. Ngenxa isimo sezulu esibi, noma badinga usizo amawa ugu singabangela baphihliza. amatilosi Itakulwe zezibani engcono isakhiwo sokuthungatha indlela ngaleso sikhathi. Kwaphela isikhathi eside ku-izihloko zazo nje babekhwezela imililo, umthombo wokukhanya kamuva kwaba amalambu kaphalafini kuze ugesi zaqala ukusetshenziswa. Esikhathini XIX leminyaka, ukukhanya, nokuphila ukulondoloza, iba lens Fresnel elenza ukukhanya lighthouse lo yesiteleka kakhulu futhi ubonakale kude.

Uphiko lens eziyinkimbinkimbi sidalwe Augustin Fresnel oyisazi isiFulentshi, umsunguli inkolelo-mbono yokuziphendukela wave yokukhanya. Fresnel lens sakhiwa ukujiya elincane ngabanye izindandatho eyindilinga eduze komunye nomunye futhi yakha isilinda nge umthombo wokukhanya ngaphakathi. Amasongo kufanele ukuma amaphrizimu. Ngamunye emasongweni iqoqa ukukhanya ugongolo ewumngcingo ray parallel diverging kusukela maphakathi. Ngokushintshanisa uMbhalo emhlabeni ukukhanya umthombo wokukhanya imishayo asinikeze emkhathizwe. Umbala imishayo, inombolo yabo, isikhawu esiphakathi kwabo bakha esiyingqayizivele wesandla beacon ekhethekile. Isifinyezo izici lwezindlu zezibani ezihlukahlukene kwakudingeka emikhunjini ibhodi, futhi sisasebenza amatilosi bafunda lighthouse phambi kwabo.

Fresnel lens ukufakwa zezibani, kuyisinyathelo esibalulekile e okubasiza nokukhanya imithombo yamandla. Lezi eziyinkimbinkimbi esiyinhlanganisela lens kwenza ukuba wandise emakamu ahlukahlukene okujula kufike ku-80 000 cd. Kwaze kwaba yilapho kusungulwa Fresnel focus ukukhanya noma isibani ntambo evutha ubengase ukubeka flashlight e ngokugxila bebuthanela lens ubukhulu ngokwanele ezinkulu noma nesibuko ngilugweda. Ngenxa yale njongo kwakudingekile ebalulekile isici optical usayizi esikhulu, okuyinto ngaphansi kwethonya amandla adonsela phansi yayo siqu kungase liqhume. Ngakho-ke, sebenzisa eziningi izibuko phakathi, focus ngamunye wabo kwaba lantern olulodwa. Lesi sinqumo ungakhululekile.

I esiyinhlanganisela Fresnel lens wasiza sifinyelele anda umfutho ukukhanya, emakamu endaweni nesiqondiso esinikezwe. Umhlangano izakhi ngabanye optical akuvezi ukukhanya, futhi wasebenza kuze kube ukukhanya, ehamba izungeze imbuthuma kuzo zonke izindawo ngu umthombo wokukhanya okujula njalo.

Kusukela isakhiwo Fresnel kukhona okungenakuqhathaniswa kudivayisi lobuchwepheshe isetshenziswe kuphela River buoys futhi beacons. Encwadini Fresnel lens wokuqala ezenziwe ngengilazi sezibani ezahlukene mkhosi, amarobhothi, izibani imoto, namaphrojektha izingxenye inkulumo. Khona-ke magnifiers wadalwa ngendlela imigqa eyenziwe ngepulasitiki esobala, nge ukucasha anemifantu isiyingi, ngamunye okuyinto kwaba nezibhebhe miniature annular, kodwa ngokuvamile Babeyimbangela lens ukubuthwa. I-lens okuholela isetshenziswa njengoba khulu ngoba into emikhulu efana ilensi yekhamera, ukudala isithombe nabokhulumile.

Ngokuhamba kwesikhathi, ukwenaba Fresnel lens yandile kakhulu. Kuhlanganisa ukuthuthukiswa enezithombe, imishini ehlukahlukene ukukhanyisa, zokuvikela, imishini ukubhekwa, amandla concentrator for -solar, izibuko elisetshenziswa izibonakude. I izakhiwo optical lens nazo asetshenziswa emkhakheni multimedia. Ngakho, i-DNP, umkhiqizi elikhulu zobuchwepheshe kwelivi izikrini, ngesisekelo lens kukhona izikrini Supernova. Ngo projector screen ezingemuva isetshenziswa hhayi kuphela Fresnel lens, kodwa obunye ubuchwepheshe optical, okuvumela ukuba uthole esiyingqayizivele ukubonisa izindlela.

Kuye isicelo, lens kungenzeka abe ubukhulu ezahlukene, uhlobo oluhlukile. Kunezinhlobo ezimbili zama-lens: iringi nebhande. Okokuqala wadala ukuqondisa ukugeleza imisebe yokukhanya luhamba luye ohlangothini olulodwa. lens Isiyingi ziye zasetshenziswa imisebenzi yezandla kanye ezincane, displacing abavamile ingilazi. Ziyisivikelo lens uyakwazi okuxhunyanwa ukukhanya imishayo kunoma iyiphi isiqondiso esinikezwayo, asetshenziswa emkhakheni wezimboni.

Fresnel lens kungenzeka omuhle (lokuqoqa) nemibi (diverging). Polyvinyl lens emibi iphuzu iDemo ebalulekile kakhulu kwandisa emkhakheni umbono. Yena njengoba Fresnel lens yokupaka ezaziwayo. Ukwanda kwaleli engela wokubuka, okuyinto inikeza, ikuvumela ukuba ubone ezisendleleni ezansi emotweni, hhayi emkhakheni Ngenxa izibuko hlangothi nakuloluya esibukweni esimenza abone into engemuva. Lokhu lens kuba lula ukuwuqondisa lapho yokupaka, ethwele trailer, futhi elungisa, ukugwema ukushayisana ngokudlala izingane, izilwane noma ezinye izinto.

Fresnel lens isibe yithuluzi Amatebhe, eyasungulwa esadlala indima ebalulekile kwezobuchwepheshe ukuthuthukiswa field.