Hom tawv nqaij ntawm Fitzpatrick

Fitzpatrick kev faib tawm ntawm daim tawv nqaij yog kev faib tawm ntawm cov xim tawv nqaij rau hauv hom I-VI raws li cov yam ntxwv ntawm kev teb rau kev kub hnyiab lossis tanning tom qab raug tshav ntuj:

Hom I: Dawb; ncaj heev; plaub hau liab lossis daj; qhov muag xiav; quav hnav

Hom II: Dawb; ncaj ncees; plaub hau liab lossis daj, xiav, xim av daj, lossis qhov muag ntsuab

Hom III: Dawb dawb; ncaj nrog txhua lub qhov muag lossis plaub hau xim; pom ntau heev

Hom IV: Xim av; cov neeg Mediterranean Caucasian ib txwm muaj, cov tawv nqaij Isdias/Esxias

Hom V: Xim av tsaus, hom tawv nqaij nruab nrab sab hnub tuaj

Hom VI: Dub

Feem ntau ntseeg tias cov neeg European thiab Asmeskas muaj cov ntsiab lus melanin tsawg dua hauv txheej tawv nqaij basal, thiab daim tawv nqaij yog hom I thiab II; daim tawv nqaij daj hauv Southeast Asia yog hom III, IV, thiab cov ntsiab lus ntawm melanin hauv txheej tawv nqaij basal yog nruab nrab; daim tawv nqaij xim av-dub African yog hom V, VI, thiab cov ntsiab lus ntawm melanin hauv txheej tawv nqaij basal yog siab heev.

Rau kev kho mob laser thiab photon ntawm daim tawv nqaij, lub hom phiaj chromophore yog melanin, thiab lub tshuab thiab cov kev kho mob yuav tsum tau xaiv raws li hom tawv nqaij.

Hom tawv nqaij yog lub hauv paus tseem ceeb rau kev siv algorithm ntawmtshuaj ntsuam tawv nqaijHauv kev xav, cov neeg uas muaj xim tawv nqaij sib txawv yuav tsum siv cov algorithms sib txawv thaum nrhiav pom qhov teeb meem ntawm pigmentation, uas tuaj yeem tshem tawm qhov sib txawv ntawm cov txiaj ntsig los ntawm cov xim tawv nqaij sib txawv ntau li ntau tau.

Txawm li cas los xij, qhov tam sim notshuab tshuaj xyuas daim tawv nqaij ntawm lub ntsej muagnyob rau hauv kev ua lag luam muaj qee qhov teeb meem kev siv tshuab rau kev kuaj pom cov tawv nqaij dub thiab xim av tsaus, vim tias lub teeb UV siv los ntes cov xim yuav luag tag nrho nqus los ntawm eumelanin ntawm daim tawv nqaij nto. Yog tsis muaj kev cuam tshuam,tshuaj ntsuam tawv nqaijtsis tuaj yeem ntes cov nthwv dej ntawm lub teeb uas cuam tshuam, thiab yog li ntawd tsis tuaj yeem pom qhov tsis zoo ntawm daim tawv nqaij.