N-BK7 yog borosilicate yas kho qhov muag iav dav siv hauv kev pom thiab NIR spectrum, nws feem ntau xaiv thaum twg cov txiaj ntsig ntxiv ntawm UV fused silica (piv txwv li, kev sib kis tau zoo ntxiv rau hauv UV thiab qis coefficient ntawm thermal expansion) tsis tsim nyog.Peb lub neej ntawd siv cov khoom sib npaug Suav ntawm CDGM H-K9L los hloov N-BK7.
Paralight Optics muaj N-BK7 (CDGM H-K9L) Bi-Convex lo ntsiab muag nrog cov kev xaiv ntawm ob qho tib si uncoated los yog peb antireflection (AR) txheej, uas txo cov npaum li cas ntawm lub teeb pom los ntawm txhua qhov chaw ntawm lub lens.Txij li thaum kwv yees li 4% ntawm qhov teeb meem teeb pom kev tshwm sim ntawm txhua qhov chaw ntawm lub substrate uncoated, daim ntawv thov ntawm peb cov txheej txheem AR txheej ua haujlwm siab txhim kho kev sib kis, uas yog ib qho tseem ceeb hauv kev siv lub teeb qis, thiab tiv thaiv cov teeb meem tsis zoo (xws li, dab dluab) txuam nrog ntau qhov kev xav.Muaj optics nrog AR txheej optimized rau spectral ntau ntawm 350 - 700 nm, 650 - 1050 nm, 1050 - 1700 nm tso rau ntawm ob qhov chaw.Cov txheej no zoo heev txo qhov siab ntawm qhov pom ntawm lub substrate tsawg dua 0.5% ntawm ib qho chaw, ua rau muaj kev sib kis tau zoo thoob plaws tag nrho AR txheej rau cov kaum sab xis ntawm qhov xwm txheej (AOL) ntawm 0 ° thiab 30 ° (0.5 NA), Rau optics npaj. siv rau ntawm qhov xwm txheej loj, xav txog kev siv cov txheej txheem kev cai zoo ntawm 45 ° kaum ntawm qhov xwm txheej;Cov txheej txheem kev cai no siv tau los ntawm 25 ° txog 52 °.Broadband coatings muaj ib qho kev nqus ntawm 0.25%.Tshawb xyuas cov duab hauv qab no rau koj cov ntaub ntawv siv.
CDGM H-K9L
330nm - 2.1 μm (Tsis muaj coated)
Uncoated los yog nrog AR Txheej los yog laser kab V-txheej ntawm 633nm, 780nm los yog 532/1064nm
Muaj los ntawm 10.0 hli mus rau 1.0 m
Rau siv ntawm Finite Conjugates
Zoo suited rau ntau daim ntawv thov Finite imaging
Cov khoom siv substrate
N-BK7 (CDGM H-K9L)
Hom
Plano-Convex (PCV) Lens
Index ntawm Refraction (nd)
1.516 8
Abbe Number (Vd)
64.20 Nws
Thermal Expansion Coefficient (CTE)
7.1 x 10-6/ ℃
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
Surface 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
Saib cov lus piav qhia saum toj no
Kev xa tawm dhau txheej txheej (@ 0 ° AOI)
Cov ntsiab lus> 92% / 97% / 97%
Reflectance dhau txheej txheej (@ 0 ° AOI)
Ravg<0.25%
Tsim Wavelength
5 87,6nm
Laser Damage Threshold
> 7.5 J/cm2(10ns, 10Hz, @ 532nm)