Lisebelisoa tsa polasetiki le ho bopa ente ke motheo oa lilense tse nyane. Sebopeho sa lense ea polasetiki e kenyelletsa lisebelisoa tsa lense, moqomo oa lense, lense ea lense, spacer, letlapa la shading, lisebelisoa tsa lesale la khatello, joalo-joalo.
Ho na le mefuta e 'maloa ea lisebelisoa tsa lense bakeng sa lilense tsa polasetiki, tseo kaofela ha tsona e leng polasetiki (high molecular polymer). Ke li- thermoplastic, lipolasetiki tse nolofatsang ebe li fetoha polasetiki ha li futhumatsoa, li thatafala ha li pholile, le ho ba bonolo ha li futhumatsoa hape. Phetoho ea 'mele e hlahisang phetoho e ka fetoloang lipakeng tsa metsi le maemo a tiileng ka ho futhumatsa le ho pholisa. Lisebelisoa tse ling li qapiloe pejana 'me tse ling li batla li le ncha. Tse ling ke lipolasetiki tsa ts'ebeliso e akaretsang, 'me lisebelisoa tse ling ke lisebelisoa tsa polasetiki tsa optical tse ntlafalitsoeng ka ho khetheha, tse sebelisoang haholo libakeng tse ling tsa optical.
Ka moralo oa optical, re ka bona litekanyetso tsa lisebelisoa tsa lik'hamphani tse fapaneng, tse kang EP8000, K26R, APL5015, OKP-1 joalo-joalo. Kaofela ke tsa mofuta o itseng oa thepa ea polasetiki, 'me mefuta e latelang e tloaelehile,' me re tla e hlophisa ho ea ka nako ea ponahalo ea bona:
Lilense tsa polasetiki
- l PMMA/Akriliki:Poly(methyl methacrylate), polymethyl methacrylate (plexiglass, acrylic). Ka lebaka la theko ea eona e theko e tlaase, phetisetso e phahameng, le matla a phahameng a mochini, PMMA ke eona e sebelisoang ka ho fetesisa ea khalase bophelong. Boholo ba lipolasetiki tse bonaletsang li entsoe ka PMMA, joalo ka lipoleiti tse bonaletsang, likhaba tse bonaletsang, le li-LED tse nyane. lense jj. PMMA esale e hlahiswa ka bongata ho tloha ka bo-1930.
- PS:Polystyrene, polystyrene, ke thermoplastic e se nang mebala le e bonaletsang, hammoho le polasetiki ea boenjiniere, e qalileng tlhahiso ea bongata ka bo-1930. Mabokose a mangata a masoeu a foam le mabokose a lijo tsa mots'eare a tloaelehileng bophelong ba rona a entsoe ka thepa ea PS.
- PC:Polycarbonate, polycarbonate, hape ke amorphous thermoplastic e se nang 'mala ebile e pepenene, hape ke polasetiki ea sepheo se akaretsang. E ne e entsoe ka indasteri feela lilemong tsa bo-1960. Tšusumetso ea ts'ebetso ea thepa ea PC e ntle haholo, lits'ebetso tse tloaelehileng li kenyelletsa linkho tsa metsi, likhalase, joalo-joalo.
- l COP & COC:Cyclic olefin Polymer (COP), Cyclic olefin polymer; Cyclic olefin copolymer (COC) Cyclic olefin copolymer, ke amorphous transparent polymer material e nang le sebopeho sa selikalikoe, se nang le carbon-carbon double bonds ka har'a reng. ) le limolek'hule tse ling (tse kang ethylene). Litšobotsi tsa COP le COC li batla li tšoana. Boitsebiso bona bo batla bo le ncha. Ha e ne e qaptjoa ka lekhetlo la pele, e ne e nahanoa haholo-holo bakeng sa lisebelisoa tse amanang le optical. Hona joale e sebelisoa haholo indastering ea lifilimi, optical, display, medical (packaging bottle). COP e phethetse tlhahiso ea indasteri ho pota 1990, mme COC e phethetse tlhahiso ea indasteri pele ho 2000.
- l O-PET:Optical polyester optical polyester fiber, O-PET e ile ea rekisoa Osaka ka bo-2010.
Ha re hlahloba lisebelisoa tsa optical, re amehile haholo ka thepa ea bona ea optical le ea mechine.
Optical leqthepa
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Refractive Index & Dispersion
Refractive index le dispersion
Ho ka bonoa setšoantšong sena sa kakaretso hore lisebelisoa tse fapaneng tsa polasetiki tsa optical ha e le hantle li oela ka linako tse peli: sehlopha se le seng ke index e phahameng ea refractive le high dispersion; sehlopha se seng ke low refractive index le low dispersion. Ha re bapisa letoto la boikhethelo la index ea refractive le ho hasana ha lisebelisoa tsa khalase, re tla fumana hore mofuta oa boikhethelo oa index ea refractive ea lisebelisoa tsa polasetiki o moqotetsane haholo, 'me lisebelisoa tsohle tsa polasetiki tsa optical li na le index e tlase ea refractive. Ka kakaretso, mefuta e mengata ea likhetho bakeng sa lisebelisoa tsa polasetiki e nyane, 'me ho na le limaraka tse ka bang 10 ho isa ho tse 20 tsa thepa ea khoebo, tse fokotsang tokoloho ea moralo oa optical ho latela thepa.
Refractive index e fapana le wavelength: Lenane la refractive la lisebelisoa tsa polasetiki tsa optical le eketseha ka wavelength, index ea refractive e fokotseha hanyenyane, 'me kakaretso e batla e tsitsitse.
Refractive index e fetoha le mocheso Dn / DT: Mocheso oa mocheso oa index ea refractive oa li-plastiki tsa optical ke makhetlo a 6 ho ea ho makhetlo a 50 ho feta a khalase, e leng boleng bo bobe, e leng se bolelang hore ha mocheso o ntse o eketseha, index ea refractive e fokotseha. Ka mohlala, bakeng sa wavelength ea 546nm, -20 ° C ho 40 ° C, boleng ba dn / dT ea thepa ea polasetiki ke -8 ho -15X10 ^ -5 / ° C, ha ka lehlakoreng le leng, boleng ba lisebelisoa tsa khalase. NBK7 ke 3X10^–6/°C.
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Phetiso
Phetiso
Ha re bua ka setšoantšo sena, boholo ba li-plastiki tsa optical li na le phetisetso ea ho feta 90% ka har'a sehlopha sa leseli se bonahalang; ba boetse ba na le phetiso e ntle bakeng sa lihlopha tsa infrared tsa 850nm le 940nm, tse tloaelehileng ho lisebelisoa tsa elektronike tsa bareki. Phetiso ea thepa ea polasetiki le eona e tla fokotseha ho isa bohōleng bo itseng ha nako e ntse e feta. Lebaka le ka sehloohong ke hore polasetiki e monya mahlaseli a ultraviolet letsatsing, 'me ketane ea limolek'hule e robeha ho senya le ho hokahanya, ho fella ka liphetoho tsa' mele le lik'hemik'hale. Pontšo e hlakileng ka ho fetisisa ea macroscopic ke ho ba mosehla oa thepa ea polasetiki.
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Stress Birefringence
Lense Refraction
Stress birefringence (Birefringence) ke thepa ea optical ea thepa. Lenane la refractive la lisebelisoa le amana le boemo ba polarization le tataiso ea phatlalatso ea leseli la ketsahalo. Lisebelisoa li bonts'a li-indices tse fapaneng tsa refraction bakeng sa linaha tse fapaneng tsa polarization. Bakeng sa litsamaiso tse ling, kheloha ena ea index ea refractive e nyane haholo ebile ha e na tšusumetso e kholo tsamaisong, empa bakeng sa litsamaiso tse ling tse khethehileng tsa optical, ho kheloha hona ho lekane ho baka ho senyeha ho hoholo ha ts'ebetso ea sistimi.
Lisebelisoa tsa polasetiki ka botsona ha li na litšobotsi tsa anisotropic, empa ho bopa ha ente ea polasetiki ho tla hlahisa khatello ea maikutlo. Lebaka le ka sehloohong ke khatello ea maikutlo e hlahisoang nakong ea ho etsoa ha ente le ho hlophisoa ha li-macromolecules tsa polasetiki ka mor'a ho pholile. Khatello ea maikutlo hangata e tsepamisitsoe haufi le kou ea ente, joalo ka ha ho bonts'itsoe setšoantšong se ka tlase.
Moralo o akaretsang le molao-motheo oa tlhahiso ke ho fokotsa khatello ea maikutlo ka sefofaneng se sebetsang sa optical, se hlokang moralo o loketseng oa sebopeho sa lense, hlobo ea ente le mekhahlelo ea tlhahiso. Har'a lisebelisoa tse 'maloa, lisebelisoa tsa PC li na le tšekamelo ea ho hatella birefringence (e kholo ka makhetlo a 10 ho feta lisebelisoa tsa PMMA), le lisebelisoa tsa COP, COC, le PMMA li na le khatello e tlaase ea khatello ea maikutlo.
Nako ea poso: Jun-26-2023