Cov khoom siv yas thiab kev txhaj tshuaj pwm yog lub hauv paus rau cov iav me me. Cov qauv ntawm cov iav yas suav nrog cov khoom siv iav, lub thoob iav, lub lens mount, spacer, daim ntawv ntxoov ntxoo, cov khoom siv nplhaib siab, thiab lwm yam.

Muaj ntau hom khoom siv rau cov iav yas, txhua yam yog yas (cov polymer molecular siab). Lawv yog cov thermoplastics, cov yas uas mos thiab ua yas thaum cua sov, tawv thaum txias, thiab mos thaum cua sov dua. Kev hloov pauv lub cev uas tsim kev hloov pauv rov qab ntawm cov kua thiab cov khoom khov siv cua sov thiab txias. Qee cov ntaub ntawv tau tsim ua ntej thiab qee qhov yog qhov tshiab. Qee qhov yog cov yas siv dav dav, thiab qee cov ntaub ntawv yog cov khoom siv yas kho qhov muag tshwj xeeb, uas siv tshwj xeeb hauv qee qhov chaw kho qhov muag.

Hauv kev tsim kho qhov muag, peb yuav pom cov khoom siv ntawm ntau lub tuam txhab, xws li EP8000, K26R, APL5015, OKP-1 thiab lwm yam. Lawv txhua tus koom nrog ib hom khoom yas, thiab cov hom hauv qab no yog cov uas pom ntau dua, thiab peb yuav txheeb lawv raws li lawv lub sijhawm tshwm sim:

Cov iav yas

• l PMMA/Acrylic:Poly (methyl methacrylate), polymethyl methacrylate (plexiglass, acrylic). Vim nws tus nqi pheej yig, kev xa hluav taws xob siab, thiab lub zog kho tshuab siab, PMMA yog cov iav hloov pauv feem ntau hauv lub neej. Feem ntau ntawm cov yas pob tshab yog ua los ntawm PMMA, xws li cov phaj pob tshab, cov diav pob tshab, thiab cov LEDs me me, lens thiab lwm yam. PMMA tau tsim tawm ntau txij li xyoo 1930.
• PS:Polystyrene, polystyrene, yog ib hom thermoplastic uas tsis muaj xim thiab pob tshab, thiab yog ib hom yas engineering, uas tau pib tsim ntau hauv xyoo 1930. Ntau lub thawv ua npuas dawb thiab cov thawv noj su uas feem ntau siv hauv peb lub neej yog ua los ntawm cov khoom siv PS.
• PC:Polycarbonate, polycarbonate, kuj yog ib qho thermoplastic tsis muaj xim thiab pob tshab amorphous, thiab nws kuj yog ib qho yas dav dav. Nws tsuas yog industrialized hauv xyoo 1960. Qhov kev tiv thaiv kev cuam tshuam ntawm PC khoom yog qhov zoo heev, cov ntawv thov feem ntau suav nrog cov thoob dej dispenser, goggles, thiab lwm yam.
• COP & COC:Cyclic olefin Polymer (COP), Cyclic olefin polymer; Cyclic olefin copolymer (COC) Cyclic olefin copolymer, yog cov khoom siv polymer amorphous pob tshab nrog lub nplhaib qauv, nrog cov pa roj carbon-carbon ob npaug hauv lub nplhaib Cov hydrocarbons cyclic yog ua los ntawm cyclic olefin monomers los ntawm kev ua tus kheej-polymerization (COP) lossis copolymerization (COC) nrog lwm cov molecules (xws li ethylene). Cov yam ntxwv ntawm COP thiab COC yuav luag zoo ib yam. Cov khoom siv no yog qhov tshiab. Thaum nws tau tsim thawj zaug, nws tau txiav txim siab feem ntau rau qee qhov kev siv kho qhov muag. Tam sim no nws tau siv dav hauv zaj duab xis, lub lens kho qhov muag, zaub, kev kho mob (lub raj mis ntim khoom) kev lag luam. COP ua tiav kev tsim khoom lag luam nyob ib puag ncig xyoo 1990, thiab COC ua tiav kev tsim khoom lag luam ua ntej xyoo 2000.
• l O-PET:Cov fiber polyester optical polyester, O-PET tau muag hauv Osaka xyoo 2010s.

Thaum tshuaj xyuas cov khoom siv kho qhov muag, peb feem ntau txhawj xeeb txog lawv cov khoom siv kho qhov muag thiab cov khoom siv kho tshuab.

Optical pcov kab mob

• Refractive Index & Dispersion

Refractive index thiab dispersion

Los ntawm daim duab qhia luv luv no, peb pom tau tias cov khoom siv yas kho qhov muag sib txawv feem ntau muaj ob ntu: ib pawg yog cov ntsuas refractive siab thiab cov dispersion siab; lwm pawg yog cov ntsuas refractive qis thiab cov dispersion qis. Piv rau qhov xaiv tau ntawm cov ntsuas refractive thiab dispersion ntawm cov khoom siv iav, peb yuav pom tias cov ntsuas refractive xaiv tau ntawm cov khoom siv yas yog nqaim heev, thiab txhua yam khoom siv yas kho qhov muag muaj cov ntsuas refractive qis. Feem ntau, cov kev xaiv rau cov khoom siv yas yog nqaim dua, thiab tsuas muaj li 10 txog 20 qib khoom lag luam, uas feem ntau txwv tsis pub muaj kev ywj pheej ntawm kev tsim kho qhov muag hauv cov ntaub ntawv.

Refractive index sib txawv nrog wavelength: Qhov refractive index ntawm cov khoom siv yas optical nce nrog wavelength, qhov refractive index txo qis me ntsis, thiab tag nrho yog ruaj khov.

Cov ntsuas refractive hloov pauv nrog qhov kub thiab txias Dn / DT: Qhov ntsuas kub ntawm cov ntsuas refractive ntawm cov yas kho qhov muag yog 6 zaug txog 50 zaug loj dua li ntawm iav, uas yog tus nqi tsis zoo, uas txhais tau tias thaum qhov kub nce, qhov ntsuas refractive txo qis. Piv txwv li, rau qhov ntev ntawm 546nm, -20 ° C txog 40 ° C, tus nqi dn / dT ntawm cov khoom siv yas yog -8 txog -15X10 ^ -5 / ° C, thaum sib piv, tus nqi ntawm cov khoom siv iav NBK7 yog 3X10 ^ -6 / ° C.

• Kev Sib Kis

Qhov kev xa tawm

Hais txog daim duab no, feem ntau cov yas kho qhov muag muaj qhov xa tawm ntau dua 90% hauv qhov pom kev; lawv kuj muaj qhov xa tawm zoo rau cov kab infrared ntawm 850nm thiab 940nm, uas yog cov khoom siv hluav taws xob. Qhov xa tawm ntawm cov khoom siv yas kuj tseem yuav txo qis rau qee qhov nrog lub sijhawm. Qhov laj thawj tseem ceeb yog tias cov yas nqus cov duab ultraviolet hauv lub hnub, thiab cov saw hlau molecular tawg kom lwj thiab sib txuas, ua rau muaj kev hloov pauv hauv cov khoom siv lub cev thiab tshuaj lom neeg. Qhov pom tseeb tshaj plaws yog qhov daj ntawm cov khoom siv yas.

• Kev Nyuaj Siab Birefringence

Kev cuam tshuam ntawm lub lens

Kev ntxhov siab birefringence (Birefringence) yog ib qho khoom siv kho qhov muag ntawm cov ntaub ntawv. Qhov ntsuas refractive ntawm cov ntaub ntawv muaj feem cuam tshuam nrog lub xeev polarization thiab kev taw qhia ntawm lub teeb pom kev. Cov ntaub ntawv qhia txog cov ntsuas sib txawv ntawm kev refraction rau cov xeev polarization sib txawv. Rau qee lub kaw lus, qhov kev hloov pauv ntawm refractive index no me heev thiab tsis muaj kev cuam tshuam loj rau lub kaw lus, tab sis rau qee lub kaw lus kho qhov muag tshwj xeeb, qhov kev hloov pauv no txaus los ua rau muaj kev puas tsuaj loj heev ntawm kev ua haujlwm ntawm lub kaw lus.

Cov khoom siv yas lawv tus kheej tsis muaj cov yam ntxwv anisotropic, tab sis kev txhaj tshuaj molding ntawm cov yas yuav ua rau muaj kev ntxhov siab birefringence. Qhov laj thawj tseem ceeb yog kev ntxhov siab uas tau tshwm sim thaum lub sijhawm txhaj tshuaj molding thiab kev npaj ntawm cov yas macromolecules tom qab txias. Kev ntxhov siab feem ntau yog nyob ze ntawm qhov chaw txhaj tshuaj, raws li pom hauv daim duab hauv qab no.

Lub hauv paus ntsiab lus dav dav thiab kev tsim khoom yog kom txo qhov kev ntxhov siab birefringence hauv lub dav hlau optical zoo, uas xav tau kev tsim qauv tsim nyog ntawm cov qauv lens, txhaj tshuaj molding pwm thiab cov txheej txheem tsim khoom. Ntawm ntau cov ntaub ntawv, cov ntaub ntawv PC muaj kev ntxhov siab birefringence ntau dua (kwv yees li 10 npaug loj dua li cov ntaub ntawv PMMA), thiab cov ntaub ntawv COP, COC, thiab PMMA muaj kev ntxhov siab birefringence qis dua.