Thaum txiav txim siab ntawm lub lens-convex thiab ib lub lens bi-convex, ob qho tib si uas ua rau lub teeb pom kev sib tsoo, feem ntau yog tsim nyog xaiv lub lens plano-convex yog tias qhov xav tau qhov magnification yog tsawg dua 0.2 lossis ntau dua. 5. Nyob nruab nrab ntawm ob qhov tseem ceeb no, cov lo ntsiab muag bi-convex feem ntau nyiam.
Silicon muaj thermal conductivity thiab tsawg ntom. Txawm li cas los xij nws muaj qhov nqus tau zoo ntawm 9 microns, nws tsis haum rau siv nrog CO2 laser kis tau tus mob daim ntawv thov. Paralight Optics muaj Silicon (Si) Plano-Convex Lenses muaj nrog broadband AR txheej optimized rau 3 µm txog 5 μm spectral ntau yam tso rau ntawm ob qhov chaw. Cov txheej no zoo heev txo qhov kev xav ntawm lub substrate, yielding siab kis tau tus mob thiab tsawg haum rau tag nrho AR txheej ntau yam. Xyuas cov Graphs rau koj cov ntaub ntawv siv.
Silicon (Si)
Low Density & High Thermal Conductivity
Uncoated los yog nrog Antireflection & DLC Coatings rau 3 - 5 μm Range
Muaj los ntawm 15 mus rau 1000 mm
Cov khoom siv substrate
Silicon (Si)
Hom
Plano-Concex (PCX) Lens
Index ntawm Refraction
3.422 @ 4.58m
Abbe Number (Vd)
Tsis tau txhais
Thermal Expansion Coefficient (CTE)
2.6 x 10-6/ ntawm 20 ℃
Txoj kab uas hla Tolerance
Precision: +0.00/-0.10mm | Siab Precision: +0.00/-0.02mm
Thickness kam rau ua
Precision: +/- 0.10 hli | High Precision: -0.02 hli
Focal Length kam rau ua
+/- 1%
Surface Quality (Scratch-Dig)
Nqe: 60-40 | High Precision: 40-20
Nto Flatness (Plano Sab)
hl/4
Spherical Surface Power (Convex Sab)
3 hl/4
Deg Irregularity (Peak rau Valley)
hl/4
Qhov chaw
Qhov tseeb:<3 arcmin | High Precision: <30 arcsec
Clear Aperture
90% ntawm txoj kab uas hla
AR Txheej ntau yam
3-5 m
Kev xa tawm dhau txheej txheej (@ 0 ° AOI)
Qhov hnyav> 98%
Reflectance dhau txheej txheej (@ 0 ° AOI)
Ravg<1.25%
Tsim Wavelength
4;m ua
Laser Damage Threshold
0.25 J/cm2(6 ns, 30 kHz, @ 3.3μm)