Txawm hais tias Bi-convex lo ntsiab muag txo qis qhov tsis sib xws hauv cov xwm txheej uas cov khoom thiab cov duab nyob deb sib npaug los yog ze li ntawm qhov sib npaug, thaum txiav txim siab ntawm ob-convex lossis DCX lens thiab lub lens plano-convex, ob qho tib si uas ua rau muaj teeb meem teeb meem sib sib zog nqus, nws yog feem ntau yog qhov zoo dua los xaiv lub lens bi-convex kom txo qis aberrations yog tias qhov sib piv ntawm cov khoom thiab cov duab nyob deb (qhov tseeb conjugate ratio) yog ntawm 5: 1 thiab 1: 5.Sab nraum qhov no, cov lo ntsiab muag plano-convex feem ntau nyiam.
ZnSe lo ntsiab muag yog qhov tshwj xeeb zoo rau kev siv nrog lub zog siab CO2 lasers.Paralight Optics muaj Zinc Selenide (ZnSe) Bi-Convex Lenses muaj nrog broadband AR txheej optimized rau 8 txog 12 μm spectral ntau yam tso rau ntawm ob qhov chaw.Cov txheej no zoo heev txo qhov siab ntawm qhov pom ntawm lub substrate, ua rau qhov nruab nrab kis tau tus mob ntau dua 97% dhau ntawm tag nrho AR txheej.Tshawb xyuas cov duab hauv qab no rau koj cov ntaub ntawv siv.
Zinc Selenide (ZnSe)
Broadband AR txheej rau 8 - 12 µm Range
Muaj los ntawm 15 mus rau 200 mm
Zoo tagnrho rau CO2Kev siv laser
Cov khoom siv substrate
Laser Qib Zinc Selenide (ZnSe)
Hom
Ob chav-Convex (DCX) Lens
Index ntawm Refraction @ 10.6 µm
2.403 ib
Abbe Number (Vd)
Tsis tau txhais
Thermal Expansion Coefficient (CTE)
7.1 x 10-6/ ℃ ntawm 273K
Txoj kab uas hla Tolerance
Presicion: +0.00/-0.10mm |Siab Precise: +0.00/-0.02 hli
Thickness kam rau ua
Presicion: +/- 0.10 hli |Siab Precise: +/- 0.02 hli
Focal Length kam rau ua
+/- 0.1%
Surface Quality (scratch-dig)
Nqe: 60-40 |Siab Precise: 40-20
Spherical Surface Power
3 hl/4
Surface Irregularity (Peak rau Valley)
hl/4
Qhov chaw
Qhov tseeb:<3 arcmin |Siab Precision<30 arcsec
Clear Aperture
80% ntawm txoj kab uas hla
AR Txheej ntau yam
8-12 m
Reflectance dhau txheej txheej (@ 0 ° AOI)
Ravg<1.0%, Rab<2.0%
Kev xa tawm dhau txheej txheej (@ 0 ° AOI)
Tavg> 97%, Tabs> 92%
Tsim Wavelength
10,6m ib
Laser Damage Threshold
> 5 J/cm2(100 ns, 1 Hz, @ 10.6μm)