I-Calcium Fluoride (CaF2)
I-Bi-Convex Lens
Amalensi e-Bi-convex (noma amalensi aphindwe kabili) enza kangcono uma into iseduze nelensi futhi isilinganiso se-conjugate siphansi. Uma into nebanga lesithombe zilingana (1:1 ukukhulisa), akuncishiswa kuphela ukujika okuyindilinga, kodwa futhi ukuhlanekezela, nokungalungi kwe-chromatic kukhanseliwe ngenxa yokulinganisa. Ngakho-ke ziyizinketho ezingcono kakhulu lapho into nesithombe kuku-conjugate ratios ngokuphelele eduze no-1:1 ngemishayo yokufaka ephambukayo. Njengomthetho wesithupha, amalensi ama-bi-convex asebenza kahle ngaphakathi kokungalungi okuncane ezilinganisweni ze-conjugate phakathi kuka-5:1 no-1:5, asetshenziselwa izinhlelo zokusebenza ze-relay imaging (Into Yangempela Nesithombe). Ngaphandle kwalolu hlu, amalensi e-plano-convex ngokuvamile afaneleka kakhulu.
Ngenxa yokudluliswa kwayo okuphezulu ukusuka ku-0.18 µm kuya ku-8.0 μm, i-CaF2 ibonisa inkomba ephansi ye-refractive ehluka ukusuka ku-1.35 ukuya ku-1.51 futhi ivamise ukusetshenziselwa izinhlelo zokusebenza ezidinga ukudluliswa okuphezulu kububanzi be-infrared ne-ultraviolet spectral. I-calcium fluoride nayo ayisebenzi ngamakhemikhali futhi inikeza ubulukhuni obuphakeme uma iqhathaniswa ne-barium fluoride yayo, kanye nabazala be-magnesium fluoride. I-Paralight Optics inikezela ngamalensi e-Calcium Fluoride (CaF2) Bi-Convex atholakala nge-broadband AR coating elungiselelwe ububanzi obungama-2 µm kuya ku-5 μm obufakwe kuzo zombili izindawo. Lokhu kunamathela kunciphisa kakhulu ukubonakaliswa okumaphakathi kwe-substrate engaphansi kuka-1.25%, kuveza ukudluliswa okumaphakathi okungaphezu kuka-95% kulo lonke uhla lokumboza lwe-AR. Hlola amagrafu alandelayo ukuze uthole izithenjwa zakho.
Izici:
Okubalulekile:
I-Calcium Fluoride (CaF2)
Iyatholakala:
Engagqotshiwe noma ene-Antireflection Coatings
Ubude bokugxila:
Itholakala kusuka ku-15 kuya ku-200 mm
Izicelo:
Ilungele ukusetshenziswa nge-Excimer Lasers
Imininingwane Ejwayelekile:
Umdwebo Wezithenjwa we
Ilensi ye-Double-convex (DCX)
I-Dia: Ububanzi
f: Ubude bokugxila
ff: Ubude Bendawo Ephambili
fb: Ubude beFocal Emuva
R: I-Radius of Curvature
tc: Ubukhulu obuphakathi
te: Ukujiya komphetho
H”: Emuva Indiza Eyinhloko
Qaphela: Ubude bokugxila bunqunywa kusukela endizeni eyinhloko engemuva, engahambelani nogqinsi lomkhawulo.
Amapharamitha
Amabanga & Ukubekezelelana
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I-Substrate Material
I-Calcium Fluoride (CaF2)
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Uhlobo
Ilensi ye-Double-Convex (DCX)
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Inkomba ye-Refraction (nd)
1.434 @ Nd:Yag 1.064 μm
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Inombolo ye-Abbe (Vd)
95.31
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I-Thermal Expansion Coefficient (CTE)
18.85 x 10-6/℃
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Ukubekezelela Ububanzi
Ukunemba: +0.00/-0.10mm | Ukunemba okuphezulu: +0.00/-0.03 mm
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Ukujiya Ukubekezelelana
Ukunemba: +/-0.10 mm | I-Precison Ephakeme: +/-0.03 mm
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Ukubekezelela Ubude obugxile
+/-0.1%
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Ikhwalithi Yobuso (i-scratch-dig)
Isilinganiso: 80-50 | I-Precison ephezulu: 60-40
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Amandla Obuso Obuyindilinga
3 l/4
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I-Surface Irregularity (Peak to Valley)
λ/4
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Isikhungo
I-Precison:<3 arcmin | I-High Precison: <1 arcmin
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Imbobo ecacile
90% we-Diameter
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I-AR Coating Range
2 - 5 μm
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Ukubukeka phezu kobubanzi bokuhlanganisa (@ 0° AOI)
I-Ravg< 1.25%
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Ukudluliswa kwe-Coating Range (@ 0° AOI)
I-Tavg > 95%
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Design Wavelength
awu 588nm
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I-Laser Damage Threshold
> 5 J/cm2(100 ns, 1 Hz, @10.6μm)
Amagrafu
♦ Ijika lokudlulisela elingu-10 mm ubukhulu, i-CaF2 substrate engagcotshiwe: ukudluliswa okuphezulu kusuka ku-0.18 µm kuya ku-8 μm
♦ Ijika lokudlulisela le-CaF2 ehlanganiswe ne-AR ethuthukisiwe: Tavg > 95% phezu kobubanzi obungu-2 µm - 5 μm
