Icalcium Fluoride (CaF2)
IiLensi zeBi-Convex
Iilensi ze-Bi-convex (okanye i-double-convex lens) zenza ngcono xa into isondele kwi-lens kunye ne-conjugate ratio iphantsi.Xa into kunye nomgama womfanekiso zilingana (1:1 ulwandiso), akuncitshiswa kuphela ukujika okungqukuva, kodwa nokugqwethwa, kunye nokujika kwekhromatic kuyacinywa ngenxa ye-symmetry.Ke lolona khetho lulungileyo xa into kunye nomfanekiso zikumlinganiselo opheleleyo weconjugate kufutshane ne-1:1 kunye nemiqadi yokufaka eyahlukanisiweyo.Njengomthetho wesithupha, iilensi ze-bi-convex zisebenza kakuhle ngaphakathi kokuphambuka okuncinci kwi-conjugate ratios phakathi kwe-5: 1 kunye ne-1: i-5, zisetyenziselwa ukuhanjiswa kwe-imaging (Into eyinyani kunye noMfanekiso) izicelo.Ngaphandle kolu luhlu, iilensi zeplano-convex zihlala zifanelekile.
Ngenxa yokuhanjiswa kwayo okuphezulu ukusuka kwi-0.18 µm ukuya kwi-8.0 μm, i-CaF2 ibonisa isalathisi esisezantsi se-refractive ukusuka kwi-1.35 ukuya kwi-1.51 kwaye isetyenziswa ngokuqhelekileyo kwizicelo ezifuna ukuhanjiswa okuphezulu kwi-infrared kunye ne-ultraviolet spectral ranges.I-calcium fluoride ikwayikhemikhali inert kwaye inika ubunzima obuphezulu xa kuthelekiswa ne-barium fluoride, kunye nabazala be-magnesium fluoride.IParalight Optics ibonelela ngeCalcium Fluoride (CaF2) iiLensi zeBi-Convex ezifumaneka ngebroadband AR yokugquma elungiselelwe i-2 µm ukuya kwi-5 μm uluhlu lokubonwayo olufakwe kuyo yomibini imiphezulu.Olu gquba luwunciphisa kakhulu umndilili wembonakalo yesubstrate engaphantsi kwe-1.25%, inika usasazo oluyi-avareji olungaphezulu kwama-95% kulo lonke uluhlu lokutyabeka lwe-AR.Jonga ezi Grafu zilandelayo kwiireferensi zakho.
Iimbonakalo:
Izinto:
Icalcium Fluoride (CaF2)
Iyafumaneka:
Ingagqunywanga okanye ngeAntireflection Coatings
Ubude bokuJonga:
Ifumaneka ukusuka kwi-15 ukuya kwi-200 mm
Usetyenziso:
Ilungele ukusetyenziswa kunye neLaser Excimer
Iingcaciso eziqhelekileyo:
Umzobo weReferensi ye
Ilensi ye-convex ephindwe kabini (DCX).
Idaya: Ububanzi
f: Ubude bokuJonga
ff: Ubude bokuJonga ngaphambili
fb: Ubude bokujongwa ngasemva
R: Irediyasi yeCurvature
tc: Ukutyeba embindini
te: Ukutyeba komda
H”: Inqwelo-moya eyiNqununu yoBuyela
Qaphela: Ubude obugxininise bumiselwa ukusuka kwinqwelo-moya eyintloko yangasemva, engahambelaniyo nobukhulu bomphetho.
Iiparamitha
Uluhlu kunye noNyamezelo
-
I-Substrate Material
Icalcium Fluoride (CaF2)
-
Uhlobo
Ilensi ye-Double-Convex (DCX).
-
Isalathiso sokuRefraction (nd)
1.434 @ Nd:Yag 1.064 μm
-
Inombolo ka-Abbe (Vd)
95.31
-
I-Thermal Expansion Coefficient (CTE)
18.85 x 10-6/℃
-
Ukunyamezela kwe-Diameter
Ukuchaneka: +0.00/-0.10mm |Ukuchaneka okuphezulu: +0.00/-0.03 mm
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Ukutyeba Ukunyamezela
Precison: +/-0.10 mm |I-Precison ephezulu: +/-0.03 mm
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Unyamezelo loBude obuJolisekileyo
+/-0.1%
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Umgangatho womphezulu (ukugrumba-krwempa)
Precison: 80-50 |I-Precison ephezulu: 60-40
-
Amandla oMphezulu weSpherical
3 λ/4
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i-Surface irregularity (iNcopho ukuya kwiNtlambo)
λ/4
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Iziko
Umzobo:<3 arcmin |I-Precison ephezulu: <1 arcmin
-
Umngxuma ocacileyo
90% yoMdayamitha
-
Uluhlu lwe-AR Coating
2 - 5 μm
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IReflectance phezu koLunge loKutyabeka (@ 0° AOI)
Ravg< 1.25%
-
Ugqithiso phezu koLunge loKutyabeka (@ 0° AOI)
Tavg > 95%
-
Yila ubude beWaveleng
588nm
-
Laser Umonakalo Threshold
>5 J/cm2(100 ns, 1 Hz, @ 10.6μm)
Iigrafu
♦ Igophe lothumelo lwe-10 mm ubukhulu, i-CaF2 substrate engagqunywanga: usulelo oluphezulu ukusuka kwi-0.18 µm ukuya kwi-8 μm
♦ Igophe losasazo lwe-AR-coated CaF2 ephuculweyo: Tavg > 95% ngaphezulu koluhlu lwe-2 µm - 5 μm
