Fitzpatrick Daim tawv nqaij hom

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

Hom I: Dawb; ncaj ncees heev; cov plaub hau liab los yog xim daj; ob lub qhov muag xiav; freckles

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

Hom III: Cream dawb; ncaj ncees nrog txhua qhov muag lossis cov plaub hau xim; nquag heev

Hom IV: Xim av; Ib txwm Mediterranean Caucasians, Indian / Esxias daim tawv nqaij hom

Hom V: Tsaus xim av, hom tawv nqaij nruab nrab sab hnub tuaj

Hom VI: Dub

Nws feem ntau ntseeg tias cov neeg European thiab Asmeskas muaj cov ntsiab lus melanin tsawg dua hauv cov txheej txheem ntawm daim tawv nqaij, thiab daim tawv nqaij yog hom I thiab II; Cov tawv nqaij daj nyob rau sab hnub tuaj Asia yog hom III, IV, thiab cov ntsiab lus ntawm melanin nyob rau hauv basal txheej ntawm daim tawv nqaij yog nruab nrab; African xim av-dub daim tawv nqaij yog hom V, VI, thiab cov ntsiab lus ntawm melanin nyob rau hauv basal txheej ntawm daim tawv nqaij yog siab heev.

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

Hom tawv nqaij yog ib qho tseem ceeb theoretical hauv paus rau lub algorithm ntawmdaim tawv nqaij analyzer. Hauv kev xav, cov neeg uas muaj xim sib txawv ntawm daim tawv nqaij yuav tsum siv cov algorithms sib txawv thaum kuaj pom qhov teeb meem ntawm pigmentation, uas tuaj yeem tshem tawm qhov sib txawv ntawm cov txiaj ntsig tshwm sim los ntawm cov xim sib txawv ntawm cov tawv nqaij ntau li ntau tau.

Txawm li cas los xij, tam sim nontsej muag daim tawv nqaij tsom xam tshuabHauv kev ua lag luam muaj qee yam teeb meem rau kev tshawb pom ntawm cov tawv nqaij dub thiab xim av tsaus nti, vim tias UV lub teeb siv los ntes pigmentation yuav luag tag nrho absorbed los ntawm eumelanin ntawm daim tawv nqaij. Tsis muaj kev xav,daim tawv nqaij analyzertsis tuaj yeem ntes tau cov teeb pom kev tsis zoo, thiab yog li tsis tuaj yeem ntes cov tawv nqaij hloov xim.