Tam sim no, ntau tus neeg ntseeg tias cov iav kim dua yog qhov zoo dua!Txhawm rau kom nkag siab qhov kev xav ntawm cov neeg siv khoom, cov khw muag khoom siv kho qhov muag feem ntau siv qhov ntsuas qhov muag tsis pom kev los ua kom tus nqi ntawm cov iav kom tau txais txiaj ntsig zoo dua nyiaj txiag.Qhov siab dua qhov refractive index, qhov thinner lub lens, qib siab dua, thiab tus nqi siab dua!Yog li nws puas muaj tseeb tias qhov siab dua qhov refractive index ntawm tsom iav, qhov zoo dua?Wb tham txog nws.
Cov lo ntsiab muag kho qhov muag zoo yuav tsum xa mus rau cov lo ntsiab muag uas muaj cov khoom siv kho qhov muag zoo, uas tau cuam tshuam nrog lub teeb xa hluav taws xob siab, me me dispersion, zoo hnav tsis kam, muaj zog tiv thaiv ultraviolet, thiab kev tiv thaiv hluav taws xob zoo.
Feem ntau qhov ntsuas qhov ntsuas ntawm lub lo ntsiab muag suav nrog 1.49, 1.56, 1.61, 1.67, 1.74, 1.8, 1.9.Myopia tuaj yeem muab faib ua myopia me (nyob rau hauv 3.00 degrees), nruab nrab myopia (nruab nrab ntawm 3.00 thiab 6.00 degrees), thiab siab myopia (siab dua 6.00 degrees).Feem ntau hais lus me me thiab nruab nrab myopia (paj mus rau 400 degrees) CHOICE refractive index yog 1.56 OK, (300 degrees rau 600 degrees) hauv 1.56 lossis 1.61 ob hom refractive index xaiv qhov tsim nyog me ntsis, 600 degrees saum toj no tuaj yeem xav txog 1.67 lossis 1.74. Lub lens refractive index.Ntawm chav kawm, cov no tsis yog kiag li, feem ntau raws li kev xaiv ntawm lub thav duab thiab qhov teeb meem tiag tiag ntawm lawv ob lub qhov muag los txiav txim siab.
Qhov siab dua qhov refractive index, lub thinner lub lens, ntau dua cov tshuab yuav tsum tau, tus nqi siab dua, tab sis qhov qis dua lub ntsiab lus, qhov qis dua qhov refractive index yuav!
Qhov siab dua qhov refractive index yog, qhov ntau refraction tshwm sim tom qab lub teeb dhau los ntawm lub lens, thiab lub lens yog thinner.Txawm li cas los xij, qhov siab dua qhov refractive index yog, qhov loj dua qhov tshwm sim dispersion yog, yog li lub siab refractive index lens muaj tus lej Abbe tsawg.Nyob rau hauv lwm yam lus, lub refractive index yog siab dua, lub lens yog thinner, tab sis lub vividness ntawm cov xim tsis yog nplua nuj li qhov nruab nrab 1.56.High refractive index lo ntsiab muag feem ntau yog siv rau ntau txhiab degrees.
Lub ntsiab kom zoo dua ntawm high refractive index lo ntsiab muag yog lawv cov thinness, uas tsis tas yuav ua rau kev ua tau zoo kho qhov muag.Cov neeg siv khoom hauv kev xaiv lo ntsiab muag, yuav tsum xaiv raws li qhov sib txawv ntawm qhov muag kom haum rau lawv tus kheej, kev ua tau zoo ntawm lub lens, qhov muag tsis pom kev ntawm qhov ntsuas siab refractive tsis xav tau, tsim nyog yog qhov tseem ceeb tshaj plaws!
Post lub sij hawm: Aug-08-2022