Dab tsi yog cov ntsiab lus tseem ceeb thiab qhov tsis zoo ntawm cov ntxaij lim dej kho qhov muag?

1. Raws li cov spectral band distinction lim:

 

Los ntawm qhov ntev ntawm lub spectrum (piv txwv li, thaj av uas lub spectrum nyob), cov ntxaij lim dej tau muab faib ua ultraviolet, pom, ze-infrared, infrared, thiab far-infrared lim.

 

Lub spectral wavelength range yog raws li nram no:

 

UV lim 180 ~ 400nm

Pom pom lim 400 ~ 700nm

Ze-infrared lim 700 ~ 3000nm

Infrared lim 3000nm ~ 10um saum toj no

 

 

2. Distinguishes cov ntxaij lim dej los ntawm cov yam ntxwv spectral:

 

Bandpass filters, cutoff filters, spectral filters, neutral density filters, reflection filters, thiab negative filters.

 

Dab tsi yog cov ntsiab lus tseem ceeb thiab qhov tsis zoo ntawm cov ntxaij lim dej kho qhov muag?

 

Bandpass hom: Lub teeb ntawm lub wavelength band uas tau xaiv dhau los, thiab lub teeb sab nraum lub passband raug txiav tawm. Nws qhov ntsuas qhov muag pom feem ntau yog nruab nrab wavelength (CWL) thiab ib nrab bandwidth (FWHM). Nws tau muab faib ua qhov nqaim thiab dav dav-piv txwv li, nqaim band 808 lim, NBF-808.

 

Short wavelength pass type (tseem hu ua low wavelength pass):Lub teeb luv luv dua li qhov kev xaiv wavelength hla dhau thiab lub teeb ntev dua li lub wavelength cutoff-piv txwv li, infrared cutoff filter, IBG-650.

 

Ntev wavelength pass hom (tseem hu ua high wavelength pass): ntev tshaj qhov xaiv wavelength ntawm lub teeb pom kev, luv dua lub wavelength ntawm lub teeb txiav. Piv txwv li, lub lim kis infrared, IPG-800.

 

 

3. Distinguishing cov ntxaij lim dej raws li cov khoom siv zaj duab xis:

 

Mos zaj duab xis lim, nyuaj zaj duab xis lim;

 

Cov ntxaij lim dej mos yog siv rau hauv biochemical analyzers; Cov ntxaij lim dej nyuaj xa mus rau zaj duab xis hardness thiab, qhov tseem ceeb tshaj, lawv qhov kev puas tsuaj ntawm lub laser, yog li nws tau siv dav hauv cov tshuab laser.

 

 

4. cov ntsiab lus hais txog lim:

 

Center wavelength (CWL):Lub wavelength siv nyob rau hauv qhov tseeb daim ntawv thov ntawm lub lim, xws li lub ntsiab ncov tus nqi ntawm lub teeb qhov chaw yog 850nm coj teeb, qhov kev thov rau nruab nrab wavelength yog 850nm.

 

Transmittance (T):Piv txwv tias qhov pib tus nqi ntawm lub teeb yog 100 feem pua, tom qab dhau los ntawm lub lim, muaj qhov poob los ntawm kev ntsuam xyuas tsuas yog 85 feem pua, ces qhov optical transmittance ntawm lub lim tsuas yog 85 feem pua, yooj yim tso yog qhov poob ntawm ntau npaum li cas. , peb txhua tus cia siab tias yuav ua txhua yam me me, qhov zoo dua.

 

Peak transmittance (Tp) > 85 feem pua:Tus nqi siab tshaj plaws uas cov lim tuaj yeem kis tau tom qab poob yog siab dua 85 feem pua.

 

FWM:Cias muab, nws yog lub wavelength sib raug rau 1/2 ntawm qhov siab tshaj plaws transmittance, thiab tus nqi ntawm sab laug thiab txoj cai wavelengths yog rho tawm, piv txwv li, lub ncov tus nqi yog 90 feem pua, 1/2 yog 45 feem pua, thiab sab laug thiab sab xis. wavelengths sib xws rau 45 feem pua ​​​​yog 800 nm thiab 850 nm, thiab ib nrab bandwidth yog 50 nm.

 

Thaiv:Lub transmittance sib raug rau thaj tsam thaiv. Txij li thaum tus nqi xa mus txog 0 feem pua, paub tias lub hnub tuaj yeem ua rau cov ntoo hauv av rau hauv hluav taws yog qhov nyuaj. Tsuas yog tso siab rau cov yeeb yaj kiab nyias no los npog txhua yam yog qhov nyuaj heev, thiab peb tsuas yog xaiv tau los ntawm tus nqi me me, qhov zoo dua; uas yog, peb tsis xav kom tus spectral transmittance tus nqi yuav me me li sai tau.

 

Txiav tawm band:Qhov tsawg tshaj plaws tau txais cheeb tsam ntawm pliaj wavelengths.

 

Hard txheej:Plating ntawm cov khoom siv oxide (xws li Ta2O5, SiO2, thiab lwm yam).

 

Mos txheej:Dhau li ntawm cov khoom siv oxide, xws li fluoride (MgF2), sulfide, feem ntau siv kub, nyiaj, txhuas, thiab lwm yam.

 

Transmission enhancement zaj duab xis (AR):Txo qhov kev xav ntawm zaj duab xis nce qhov nkag mus ntawm lub teeb kom qhov kev siv lub teeb pom kev zoo tshaj plaws.

 

BBAR:Rov qab broadband transmittance li zaj duab xis.

 

High Reflective (HR):lub teeb los ntawm ib lub wavelength tshwj xeeb yog xa rov qab los yog xav tau ntau dua, xws li kev siv iav ib txwm siv.

 

High Transmittance (HT):Lub teeb los ntawm ib lub wavelength tshwj xeeb yog tsawg dua, xws li kev siv cov iav qhov rais niaj hnub, uas belongs rau lub teeb pom kev siab transmittance.