Calcium Fluoride (CaF2)
Magalasi a Bi-Convex
Magalasi a Bi-convex (kapena ma lens awiri-convex) amachita bwino pamene chinthucho chili pafupi ndi mandala ndipo chiŵerengero cha conjugate chili chochepa. Pamene chinthu ndi mtunda wa fano ndi wofanana (1: 1 kukula), sikuti kutsika kozungulira kumachepetsedwa, komanso kupotoza, ndi kusintha kwa chromatic kumathetsedwa chifukwa cha symmetry. Chifukwa chake ndi zisankho zabwino kwambiri ngati chinthu ndi chithunzi zili pamiyezo yolumikizirana pafupi ndi 1: 1 yokhala ndi matabwa olowera. Monga lamulo la chala chachikulu, ma lens a bi-convex amachita bwino mkati mwa kusintha kochepa pa ma conjugate ratios pakati pa 5: 1 ndi 1: 5, amagwiritsidwa ntchito pojambula zithunzi (Real Object and Image) ntchito. Kunja kwamtunduwu, magalasi a plano-convex nthawi zambiri amakhala oyenera.
Chifukwa cha kufalikira kwake kwakukulu kuchokera ku 0.18 µm kufika ku 8.0 μm, CaF2 imawonetsa index yotsika yotsika kuchokera ku 1.35 mpaka 1.51 ndipo imagwiritsidwa ntchito kwambiri pamapulogalamu omwe amafunikira kufalikira kwakukulu mumitundu ya infrared ndi ultraviolet spectral. Calcium fluoride ndiyomwe imalowa m'thupi ndipo imapereka kuuma kopambana poyerekeza ndi barium fluoride, ndi azisuwani ake a magnesium fluoride. Paralight Optics imapereka Magalasi a Calcium Fluoride (CaF2) Bi-Convex omwe amapezeka ndi zokutira za Broadband AR zokongoletsedwa ndi mawonekedwe a 2 µm mpaka 5 μm oyikidwa pamalo onse awiri. Kupaka uku kumachepetsa kwambiri mawonekedwe a gawo lapansi lochepera 1.25%, kumapereka kufalikira kwapakati pa 95% pamitundu yonse ya zokutira za AR. Yang'anani m'ma Grafu otsatirawa kuti mupeze zolozera zanu.
Mawonekedwe:
Zofunika:
Calcium Fluoride (CaF2)
Zilipo:
Zovala zosaphimbidwa kapena zokhala ndi Antireflection Coatings
Utali Woyimba:
Amapezeka kuchokera 15 mpaka 200 mm
Mapulogalamu:
Ndioyenera kugwiritsidwa ntchito ndi Excimer Lasers
Zomwe Zadziwika:
Zojambula za
Magalasi a Double-convex (DCX)
Dia: Diameter
f: Kutalika Kwambiri
ff: Kutalika Kwambiri Kwambiri
fb: Kutalika Kwambiri Kumbuyo
R: Radius of Curvature
tc: Makulidwe apakati
te: Makulidwe a M'mphepete
H": Ndege Yaikulu Yobwerera
Zindikirani: Kutalika kwapakati kumatsimikiziridwa kuchokera ku ndege yayikulu yakumbuyo, yomwe siimayenderana ndi makulidwe a m'mphepete.
Parameters
Ranges & Tolerances
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Zinthu Zapansi
Calcium Fluoride (CaF2)
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Mtundu
Magalasi a Double-Convex (DCX)
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Index of Refraction (nd)
1.434 @ Nd:Yag 1.064 μm
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Nambala ya Abbe (Vd)
95.31
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Thermal Expansion Coefficient (CTE)
18.85 x 10-6/℃
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Kulekerera kwa Diameter
Kulondola: +0.00/-0.10mm | Kusamalitsa Kwambiri: +0.00/-0.03 mm
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Makulidwe Kulekerera
Precison: +/-0.10 mm | Kuthamanga Kwambiri: +/-0.03 mm
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Kuyang'ana Kwautali Kulekerera
+/- 0.1%
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Ubwino wa Pamwamba (kukumba-kumba)
Nthawi: 80-50 | Kuthamanga Kwambiri: 60-40
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Mphamvu ya Spherical Surface
3 la/4
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Surface Irregularity (Peak to Valley)
λ/4
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Pakati
Precison:<3 arcmin | High Precison: <1 arcmin
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Khomo Loyera
90% ya Diameter
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AR Coating Range
2 - 5 m
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Kuyang'ana pa Kuyika (@ 0° AOI)
Ravg< 1.25%
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Kupatsirana pamwamba pa zokutira (@ 0° AOI)
Mphamvu> 95%
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Kupanga Wavelength
588 nm
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Chiwopsezo cha Kuwonongeka kwa Laser
> 5 J/cm2(100 ns, 1 Hz, @10.6μm)
Zithunzi
♦ Mpiringidzo wopatsira wa 10 mm wokhuthala, wosakutidwa ndi gawo laling'ono la CaF2: kufalikira kwakukulu kuchokera ku 0.18 µm mpaka 8 μm
♦ Mpiringidzo wodutsa wa CaF2 yowonjezeredwa ndi AR: Tavg > 95% pamtundu wa 2 µm - 5 μm
