Ibikoresho bya plastiki hamwe no guterwa inshinge nibyo shingiro rya linzira ntoya. Imiterere ya lensike ya plastike ikubiyemo ibikoresho bya lens, lens barrel, lens mount, spacer, urupapuro rwigicucu, ibikoresho byimpeta, nibindi.

Hariho ubwoko butandukanye bwibikoresho bya lensike ya lensike ya plastike, byose ni plastike (polymer ya molekile ndende). Nibintu bya termoplastike, plastiki yoroshye kandi igahinduka plastike iyo ishyushye, igakomera iyo ikonje, kandi ikoroha iyo yongeye gushyuha. Impinduka ifatika itanga impinduka zidasubirwaho hagati yamazi akomeye kandi akomeye ukoresheje gushyushya no gukonjesha. Ibikoresho bimwe byavumbuwe mbere nibindi bisa nkibishya. Bimwe nibisanzwe-bigamije gukoresha plastiki, nibikoresho bimwe na bimwe byateguwe byumwihariko ibikoresho bya plastiki optique, bikoreshwa cyane mubice bimwe bya optique.

Mu gishushanyo mbonera, dushobora kubona amanota yibikoresho byamasosiyete atandukanye, nka EP8000, K26R, APL5015, OKP-1 nibindi. Byose ni ubwoko bwibikoresho bya pulasitiki, kandi ubwoko bukurikira buramenyerewe, kandi tuzabitondekanya dukurikije igihe cyo kugaragara:

Ibikoresho bya plastiki

• l PMMA / Acrylic:Poly (methyl methacrylate), polymethyl methacrylate (plexiglass, acrylic). Bitewe nigiciro cyacyo gihenze, itumanaho ryinshi, nimbaraga nyinshi za mashini, PMMA nigisimbuza ibirahuri bikunze kubaho mubuzima. Ibyinshi mubya plastiki bibonerana bikozwe muri PMMA, nkibisahani bisobanutse, ibiyiko bisobanutse, na LED nto. lens nibindi PMMA yakozwe cyane kuva 1930.
• PS:Polystirene, polystirene, ni thermoplastique idafite ibara kandi ibonerana, ndetse na plastiki yubuhanga, yatangiye gukora cyane muri 1930. Byinshi mubisanduku byera byera nudusanduku twa sasita dusanzwe mubuzima bwacu bikozwe mubikoresho bya PS.
• PC:Polyakarubone, polyakarubone, nayo ni amorphous thermoplastique idafite ibara kandi ibonerana, kandi ni na plastiki rusange. Yakozwe mu nganda gusa muri za 1960. Ingaruka zo kurwanya ibikoresho bya PC nibyiza cyane, mubisanzwe usanga harimo indobo zitanga amazi, indorerwamo, nibindi.
• COP & COC:Cycle olefin Polymer (COP), polymer olefin; Cycle olefin copolymer (COC) Cyclic olefin copolymer, ni amorphous transparent polymer polymer ifite imiterere yimpeta, hamwe na karuboni-karubone inshuro ebyiri mu mpeta Hydrocarbone ya cyclicale ikozwe muri monomers cyclic olefin na self-polymerisation (COP) cyangwa copolymerisation (COC) ) hamwe nizindi molekile (nka Ethylene). Ibiranga COP na COC birasa. Ibi bikoresho ni bishya. Iyo yavumbuwe bwa mbere, yatekerezwaga cyane cyane kubintu bimwe na bimwe bifitanye isano na optique. Ubu irakoreshwa cyane muri firime, lens optique, kwerekana, ubuvuzi (gupakira icupa). COP yarangije umusaruro winganda ahagana mu 1990, COC irangiza umusaruro winganda mbere ya 2000.
• l O-PET:Optical polyester optique polyester fibre, O-PET yacururizwaga muri Osaka muri 2010.

Iyo dusesenguye ibikoresho byiza, duhangayikishijwe cyane nuburyo bwiza bwa optique na mashini.

Ibyiza pimigozi

• Indanganturo Yerekana & Gutatanya

Ironderero ryoroshye kandi ritatanye

Birashobora kugaragara kuriyi shusho yincamake ko ibikoresho bya pulasitiki bitandukanye bya optique bigwa mubice bibiri: itsinda rimwe ni indangagaciro yo kwangirika no gutatana cyane; irindi tsinda ni indangagaciro yo kwanga no gutatana hasi. Tugereranije urwego rwihitirwa rwerekana ibyangiritse no gukwirakwiza ibikoresho byikirahure, tuzasanga urwego rwihitirwa rwerekana ibimenyetso byerekana ibintu bya pulasitike ari rito cyane, kandi ibikoresho byose bya pulasitiki optique bifite igipimo gito cyo kwanga. Muri rusange, uburyo bwo guhitamo ibikoresho bya pulasitike ni buke, kandi hariho amanota yubucuruzi agera kuri 10 kugeza kuri 20 gusa, ibyo bikaba bigabanya ahanini umudendezo wo gushushanya neza mubijyanye nibikoresho.

Indangantego ivunika iratandukana nuburebure bwumurongo: Igipimo cyo kwanga ibikoresho bya plastiki optique cyiyongera hamwe nuburebure bwumuraba, icyerekezo cyo kugabanuka kigabanuka gato, kandi muri rusange birahagaze neza.

Indangantego ihindagurika hamwe nubushyuhe Dn / DT: Coefficente yubushyuhe bwibipimo byerekana ibintu bya plastiki optique yikubye inshuro 6 kugeza kuri 50 kurenza ikirahure, nigiciro kibi, bivuze ko uko ubushyuhe bwiyongera, igipimo cyo kugabanuka kigabanuka. Kurugero, kuburebure bwa 546nm, -20 ° C kugeza 40 ° C, agaciro ka dn / dT yibikoresho bya plastiki ni -8 kugeza -15X10 ^ –5 / ° C, mugihe bitandukanye, agaciro k'ibirahure NBK7 ni 3X10 ^ –6 / ° C.

• Kwimura

Ikwirakwizwa

Ukoresheje iyi shusho, plastiki optique nyinshi zifite itumanaho rirenga 90% mumurongo ugaragara; bafite kandi itumanaho ryiza kubitsinda rya infragre ya 850nm na 940nm, bikunze kugaragara mubikoresho bya elegitoroniki. Kohereza ibikoresho bya pulasitike nabyo bizagabanuka kurwego runaka hamwe nigihe. Impamvu nyamukuru ni uko plastiki ikurura imirasire ya ultraviolet ku zuba, kandi urunigi rwa molekile rukameneka kugira ngo rwangirike kandi rwambukiranya, bikavamo impinduka mu miterere n’imiti. Ikigaragara cyane cya macroscopique ni umuhondo wibikoresho bya plastiki.

• Shimangira Birefringence

Kugabanya Lens

Stress birefringence (Birefringence) numutungo mwiza wibikoresho. Igipimo cyerekana ibintu bifitanye isano na polarisiyasi hamwe nicyerekezo cyo gukwirakwiza urumuri. Ibikoresho byerekana ibimenyetso bitandukanye byo kugabanuka kubintu bitandukanye bya polarisiyasi. Kuri sisitemu zimwe na zimwe, uku gutandukanya indangagaciro ni nto cyane kandi ntabwo bigira ingaruka zikomeye kuri sisitemu, ariko kuri sisitemu zimwe na zimwe zidasanzwe za optique, uku gutandukana birahagije kugirango bitere kwangirika gukabije kwimikorere ya sisitemu.

Ibikoresho bya plastiki ubwabyo ntabwo bifite imiterere ya anisotropique, ariko guterwa inshinge za plastiki bizana guhangayikishwa na birefringence. Impamvu nyamukuru ni imihangayiko yatangijwe mugihe cyo guterwa inshinge no gutunganya macromolecules ya plastike nyuma yo gukonja. Guhangayikishwa muri rusange byibanze hafi yicyambu, nkuko bigaragara ku gishushanyo gikurikira.

Igishushanyo rusange nigikorwa cyo kubyaza umusaruro ni ukugabanya imihangayiko birefringence mu ndege ikora neza, isaba igishushanyo mbonera cyimiterere ya lens, uburyo bwo gutera inshinge hamwe nibipimo byerekana umusaruro. Mubikoresho byinshi, ibikoresho bya PC bikunda guhangayikishwa na birefringence (bikubye inshuro 10 kurenza ibikoresho bya PMMA), kandi ibikoresho bya COP, COC, na PMMA bifite ikibazo cyo guhangayika.