Izixhobo zePlastiki kunye nenaliti yokubumba sisiseko seelensi ezincinci. Isakhiwo se-lens yeplastiki ibandakanya izinto ze-lens, i-lens barrel, i-lens mount, i-spacer, i-shading sheet, i-pressure ring material, njl.

Kukho iintlobo ezininzi zemathiriyeli yelensi yeelensi zeplastiki, zonke ezo ziyiplastiki ngokusisiseko (ipolymer ephezulu yeemolekyuli). Zii-thermoplastic, iiplastiki ezithambayo zize zibe yiplastiki xa ifudunyezwa, ziqina xa zipholile, kwaye zithambe xa zifudunyezwa kwakhona. Utshintsho lomzimba oluvelisa utshintsho olubuyisele umva phakathi kweemeko ezingamanzi kunye neziqinileyo kusetyenziswa ukufudumeza kunye nokupholisa. Ezinye izixhobo zenziwe kwangethuba kwaye ezinye zintsha. Ezinye ziiplastiki ezisetyenziselwa injongo jikelele, kwaye ezinye izixhobo zenziwa ngokukodwa izixhobo zeplastiki ezibonakalayo, ezisetyenziswa ngokukodwa kwezinye iindawo zamehlo.

Kuyilo lwe-optical, sinokubona amanqanaba ezinto zeenkampani ezahlukeneyo, njenge-EP8000, K26R, APL5015, OKP-1 njalo njalo. Zonke zivela kuhlobo oluthile lwezinto zeplastiki, kwaye ezi ntlobo zilandelayo zixhaphake kakhulu, kwaye siya kuzihlela ngokwexesha lokubonakala kwazo:

Iilensi zeplastiki

• l PMMA/Akriliki:Poly(methyl methacrylate), polymethyl methacrylate (plexiglass, acrylic). Ngenxa yexabiso eliphantsi, ukuhanjiswa okuphezulu, kunye namandla aphezulu omatshini, i-PMMA yeyona nto iqhelekileyo endaweni yeglasi ebomini. Uninzi lweeplastiki ezicacileyo zenziwe nge-PMMA, ezifana neepleyiti ezicacileyo, iipuni ezicacileyo, kunye nee-LED ezincinci. ilensi njl njl. I-PMMA iye yaveliswa ngobuninzi ukususela ngo-1930s.
• PS:I-Polystyrene, i-polystyrene, i-thermoplastic engenambala kunye ne-transparent, kunye neplastiki yobunjineli, eyaqala ukuveliswa ngobuninzi kwi-1930s. Uninzi lweebhokisi ze-foam ezimhlophe kunye neebhokisi zesidlo sasemini eziqhelekileyo ebomini bethu zenziwe ngezinto ze-PS.
• I-PC:I-Polycarbonate, i-polycarbonate, ikwayi-thermoplastic engenambala kunye ne-transparent amorphous, kwaye ikwayiplastiki yenjongo jikelele. Yaphuhliswa kuphela ngoo-1960. Ukuchasana kwempembelelo yezinto zePC kuhle kakhulu, izicelo eziqhelekileyo ziquka iibhakethi zokuhambisa amanzi, iiglasi, njl.
• l I-COP & COC:I-Cyclic olefin Polymer (COP), i-Cyclic olefin polymer; I-Cyclic olefin copolymer (COC) I-Cyclic olefin copolymer, i-amorphous transparent polymer material ene-ring ring, ene-carbon-carbon bond double bond kwindandatho I-cyclic hydrocarbons yenziwe kwi-cyclic olefin monomers ngokuzi-polymerization (COP) okanye i-copolymerization (COC) ) nezinye iimolekyuli (ezifana ne-ethylene). Iimpawu zeCOP kunye neCOC ziphantse zifana. Esi sixhobo sisesitsha. Xa yayiqanjwa okokuqala, yayithathelwa ingqalelo ikakhulu kwezinye izicelo ezinxulumene nokukhanya. Ngoku isetyenziswa ngokubanzi kwifilimu, i-lens optical, ukubonisa, unyango (ibhotile yokupakisha) amashishini. I-COP yagqiba imveliso yemizi-mveliso malunga ne-1990, kwaye i-COC yagqiba ukuveliswa kwemveliso ngaphambi kwe-2000.
• l O-PET:I-fiber ye-polyester ye-optical polyester, i-O-PET yathengiswa e-Osaka kwi-2010s.

Xa sihlalutya i-optical material, sixhalabele kakhulu ngeempawu zabo ze-optical and mechanical properties.

Ukubona piimpahla

• Refractive Index & Dispersion

Isalathiso se-refractive kunye nokusabalalisa

Inokubonwa kulo mzobo wesishwankathelo ukuba izinto ezahlukeneyo zeplastiki ezibonakalayo ziwela ngokusisiseko kwizithuba ezimbini: elinye iqela liyisalathisi esiphezulu se-refractive kunye ne-dispersion ephezulu; elinye iqela lisezantsi refractive index kunye ne-low dispersion. Ukuthelekisa uluhlu olukhethiweyo lwesalathiso se-refractive kunye nokusasazwa kwezixhobo zeglasi, siya kufumanisa ukuba uluhlu olukhethiweyo lwesalathisi se-refractive sezinto zeplastiki zincinci kakhulu, kwaye zonke izinto zeplastiki ezibonakalayo zinesalathisi esisezantsi. Ngokuqhelekileyo, uluhlu lwezinto ezikhethiweyo zezinto zeplastiki zincinci, kwaye kukho kuphela malunga ne-10 ukuya kuma-20 amabakala orhwebo, okunciphisa kakhulu inkululeko yoyilo lwe-optical ngokwezinto eziphathekayo.

Isalathiso se-refractive index sihluka kunye ne-wavelength: Isalathiso se-refractive sezinto zeplastiki ze-optical zanda nge-wavelength, i-index ye-refractive index iyancipha kancane, kwaye iyonke iyazinza.

Isalathisi esihlaziyiweyo sitshintsha ngeqondo lokushisa i-Dn / DT: I-coefficient yokushisa ye-refractive index of optical index yi-6 amaxesha ukuya kuma-50 amaxesha amakhulu kuneglasi, elixabiso elibi, elithetha ukuba njengoko izinga lokushisa linyuka, i-index refractive index iyancipha. Ngokomzekelo, kwi-wavelength ye-546nm, -20 ° C ukuya kwi-40 ° C, ixabiso le-dn / dT yezinto zeplastiki -8 ukuya -15X10 ^ -5 / ° C, ngelixa ngokuchaseneyo, ixabiso lezinto zeglasi. I-NBK7 yi-3X10^–6/°C.

• Ugqithiso

Ugqithiso

Ngokubhekiselele kulo mfanekiso, iiplastiki ezininzi ze-optical zine-transmittance engaphezu kwe-90% kwibhendi yokukhanya ebonakalayo; bakwanayo nokuhanjiswa okulungileyo kwiibhendi ze-infrared ze-850nm kunye ne-940nm, eziqhelekileyo kwi-electronics yabathengi. Ukuhanjiswa kwezinto zeplastiki nako kuya kuncipha ukuya kuthi ga kwinqanaba elithile ngokuhamba kwexesha. Isizathu esona sizathu kukuba iplastiki ibamba imisebe ye-ultraviolet elangeni, kwaye i-molecular chain breaks to degrade and cross-link, okubangelwa utshintsho kwizakhiwo zomzimba kunye neekhemikhali. Eyona nto ibonakalayo ye-macroscopic ebonakalayo yi-yellowing yezinto zeplastiki.

• Uxinzelelo Birefringence

IRefraction yeLens

I-Stress birefringence (i-Birefringence) yipropati ye-optical yezinto. Isalathiso se-refractive sezinto eziphathekayo sinxulumene nemeko ye-polarization kunye nesalathiso sokusasazwa kokukhanya kwesiganeko. Iimathiriyeli zibonisa izalathisi ezahlukeneyo zokuphinda-phindeka kwiimeko ezahlukeneyo zepolarization. Kwezinye iisistim, oku kunxaxha kwesalathiso se-refractive kuncinci kakhulu kwaye akunampembelelo enkulu kwinkqubo, kodwa kwiinkqubo ezithile ezikhethekileyo zamehlo, oku kunxaxha kwanele ukubangela ukuthotywa okunzulu kwenkqubo yokusebenza.

Izixhobo zeplastiki ngokwazo azinazo iimpawu ze-anisotropic, kodwa ukubunjwa kwenaliti yeeplastiki kuya kwazisa i-birefringence yoxinzelelo. Esona sizathu siphambili luxinzelelo olwaziswa ngexesha lokubumba inaliti kunye nolungiselelo lweemacromolecules zeplastiki emva kokupholisa. Uxinzelelo ngokuqhelekileyo lugxininiswe kufuphi ne-injection port, njengoko kuboniswe kumzobo ongezantsi.

Uyilo jikelele kunye nomgaqo-siseko wemveliso kukunciphisa i-birefringence yoxinzelelo kwi-optical plane esebenzayo, efuna uyilo olufanelekileyo lwesakhiwo se-lens, isitofu sokubumba kunye neeparamitha zemveliso. Phakathi kwezixhobo ezininzi, izixhobo ze-PC ziqhelene kakhulu noxinzelelo lwe-birefringence (malunga namaxesha angama-10 amakhulu kunezixhobo ze-PMMA), kunye ne-COP, i-COC, kunye nezixhobo ze-PMMA zine-birefringence ephantsi yoxinzelelo.