Iyo guhindura ijisho ry'umuntu gucogora bitewe n'imyaka, aba akeneye gukosora icyerekezo cye ukurikije icyerekezo cya kure kandi cyegereye. Muri iki gihe, akenera kwambara ibirahuri bibiri bitandukanye, ibyo bikaba bitoroshye. Niyo mpamvu, birakenewe gusya imbaraga ebyiri zitandukanye zo kuvunika kumurongo umwe kugirango uhinduke lens mubice bibiri. Izo lens zitwa bifocal lens cyangwa ibirahuri bifocal.
Andika
Ubwoko butandukanye
Nubwoko bwambere kandi bworoshye bwinzira ya binocular. Uwayihimbye muri rusange azwi nkicyamamare muri Amerika Franklin. Lens ebyiri z'impamyabumenyi zitandukanye zikoreshwa muburyo bwo gutandukanya ubwoko bwa bifocal mirror, zikoreshwa nka kure na hafi yahantu hagaragara. Iri hame ryibanze riracyakoreshwa mubishushanyo mbonera byombi.
Ubwoko bwa kole
Fata sub-firime kuri firime nkuru. Amashanyarazi yumwimerere yari amasederi yo muri Kanada, yoroshye kuyihambiraho, kandi ashobora no gufatanwa nyuma ya reberi yangijwe ningaruka zubukanishi, ubushyuhe nubumara. Ubwoko bwa epoxy resin hamwe nibikorwa byiza nyuma yo kuvura ultraviolet yagiye isimbuza iyambere. Indorerwamo ifatanye bifocal ituma igishushanyo mbonera nubunini bwa sublayer bigenda bitandukana, harimo irangi ryirangi hamwe nigishushanyo mbonera cya prism. Kugirango umupaka utagaragara kandi bigoye kumenyekana, igice gishobora gukorwa muruziga, hamwe na optique hamwe na centre ya geometrike. Ubwoko bwa Waffle indorerwamo ni indorerwamo idasanzwe ifatanye. Impande zirashobora gukorwa cyane kandi bigoye gutandukanya mugihe igice cyatunganijwe kumubiri wigihe gito, bityo bikanoza isura.
Ubwoko bwa Fusion
Ni uguhuza ibikoresho bya lens hamwe nigipimo cyinshi cyo kwangirika mukarere kegeranye ku isahani nkuru ku bushyuhe bwinshi, kandi igipimo cyo kuvunika icyapa kinini kiri hasi. Noneho wiruke hejuru yubutaka kugirango ukore ubugororangingo bwibice-buke bihuye nibice byingenzi. Nta bwumvikane buke. Gusoma inyongera A biterwa nimbaraga zo gukurura F1 yubuso bwimbere bwumurima wa kure wicyerekezo, kugabanuka FC ya arc yumwimerere arc arc hamwe nikigereranyo cyo guhuza. Ikigereranyo cya fusion nubusabane bukora hagati yikintu cyangiritse cyibikoresho bibiri bya fusion lens, aho n igereranya indangagaciro yo kwangirika kwikirahure kinini (ubusanzwe ikirahuri cyambikwa ikamba) naho ns igereranya indangantego ya sub-sheet (ikirahure cya flint) hamwe agaciro kanini, hanyuma igipimo cyo guhuza k = (n-1) / (nn), nuko A = (F1-FC) / k. Birashobora kugaragara duhereye kuri formula yavuzwe haruguru ko mubitekerezo, guhindura isura yimbere yimbere yisahani nkuru, kugabanuka arc arc curvature hamwe na sub-plate retractive index irashobora guhindura impamyabumenyi yinyongera, ariko mubyukuri, mubisanzwe bigerwaho muguhindura indangantego ya sub-plate. Imbonerahamwe 8-2 yerekana indangagaciro yo kwangirika yikirahure cya flint ikirahuri gikunze gukoreshwa kwisi kugirango gikore hafi-yongeyeho indorerwamo ya fusion bifocal.
Imbonerahamwe 8-2 Indangantego yerekana ibice bya plaque zitandukanye hafi-yongeyeho fusion bifocal indorerwamo (ikirahure cya flint)
Igipimo cyerekana ibipimo byo guhuza impamyabumenyi yinyongera-plaque
+ 0.50 ~ 1.251.5888.0
+ 1.50 ~ 2.751.6544.0
+ 3.00 ~ + 4.001.7003.0
Ukoresheje uburyo bwa fusion, sub-chip idasanzwe irashobora gukorwa, nkibisanzwe hejuru ya chip-chip, arc sub-chips, umukororombya sub-chips, nibindi. Niba dukoresheje indangagaciro ya gatatu yangiritse, dushobora gukora indorerwamo ya beam-beam .
Resin binoculars ni binoculaire yakozwe muburyo bwo gukina. Indorerwamo ya fusion bifocal ikozwe mubirahure. Ikirahuri integral bifocal indorerwamo ikenera tekinoroji yo gusya.
E-andika umurongo umwe urumuri kabiri
Ubu bwoko bw'indorerwamo ebyiri-zifite umwanya munini wegereye. Nubwoko butari ishusho yiringira indorerwamo-yumucyo, ishobora gukorwa mubirahuri cyangwa resin. Mubyukuri, E-indorerwamo ya bifocal indorerwamo irashobora gufatwa nkurwego rubi rwinyongera-kure-kure yindorerwamo. Ubunini bwigice cyo hejuru cyurugero rwa lens ni nini cyane, kubwibyo ubunini bwuruhande rwo hejuru no hepfo ya lens birashobora kuba bimwe binyuze muburyo bwo kunaniza prism. Ingano ya vertical prism yakoreshejwe biterwa ninyongera hafi, ari yA / 40, aho y ni intera kuva kumurongo ugabanya kugeza hejuru yurupapuro, na A ninyongera yo gusoma. Kubera ko hafi yo gufatisha amaso yombi ubusanzwe bingana, ingano ya prism ya binocular nayo ni imwe. Iyo prism imaze kunanurwa, firime yangiritse igomba kongerwamo cyangwa gukuramo kugirango ikureho imbere.
Igihe cyo kohereza: Werurwe-09-2023