Calcium Fluoride (CaF2)
Magalasi a Plano-Concave

Magalasi a plano-concave ndi ma lens oyipa omwe amakhala okulirapo m'mphepete kuposa apakati, kuwala kumadutsa pakati pawo, kumasiyana ndipo malo omwe amawunikira amakhala pafupifupi.Kutalika kwawo ndi koyipa, komanso utali wopindika wa malo opindika.Potengera kupindika kwawo kozungulira koyipa, magalasi a plano-concave atha kugwiritsidwa ntchito kuti azitha kusuntha mozungulira chifukwa cha magalasi ena panjira yowonera.Magalasi a plano-concave ndi othandiza pakupatutsa mtengo wopindika ndikuphatikiza mtengo wopindika, amagwiritsidwa ntchito kukulitsa nyali zowala ndikuwonjezera utali wokhazikika pamakina omwe alipo.Magalasi oyipawa amagwiritsidwa ntchito kwambiri mu telescopes, makamera, ma lasers kapena magalasi kuti athandizire makina okulitsa kukhala ophatikizika.

Magalasi a plano-concave amachita bwino ngati chinthu ndi chithunzicho zili pamiyezo yolumikizana, yoposa 5:1 kapena kuchepera 1:5.Pachifukwa ichi, ndizotheka kuchepetsa kuphulika kwa spherical, coma, ndi kupotoza.Mofananamo ndi magalasi a plano-convex, kuti akwaniritse bwino kwambiri malo opindika ayenera kuyang'anizana ndi mtunda waukulu kwambiri wa chinthu kapena cholumikizira chopanda malire kuti achepetse kufalikira kwa spherical (kupatula ngati agwiritsidwa ntchito ndi ma laser amphamvu kwambiri pomwe izi ziyenera kusinthidwa kuti zithetse kuthekera kwa pafupifupi. kuganizira).

Chifukwa cha kufalikira kwake kwakukulu kuchokera ku 0.18 µm mpaka 8.0 μm, CaF2 imawonetsa index yotsika yotsika yosiyana kuchokera ku 1.35 mpaka 1.51 ndipo imagwiritsidwa ntchito kwambiri pamapulogalamu omwe amafunikira kufalikira kwakukulu mumitundu ya infrared ndi ultraviolet spectral, ili ndi refractive index ya 1.4024 pa 1.4028 pa 1. .Calcium fluoride imakhalanso yopanda mankhwala ndipo imapereka kuuma kopambana poyerekeza ndi barium fluoride, ndi magnesium fluoride cousins.Paralight Optics imapereka magalasi a Calcium Fluoride (CaF2) a plano-concave okhala ndi zokutira zotchingira mawonedwe a kutalika kwa 2 µm mpaka 5 µm zoyikidwa pamalo onse awiri.Kupaka uku kumachepetsa kwambiri kuwunikira kwa gawo lapansi, kumapereka kufalikira kwapakati kupitilira 97% pamitundu yonse ya zokutira za AR.Yang'anani m'ma Grafu otsatirawa kuti mupeze zolozera zanu.

Mawonekedwe:

Zofunika:

Calcium Fluoride (CaF2)

Zosankha zokutira:

Zovala zosaphimbidwa kapena zokhala ndi Antireflection Coatings

Utali Woyimba:

Amapezeka kuchokera -18 mpaka -50 mm

Mapulogalamu:

Zoyenera Kugwiritsidwa Ntchito mu Excimer Laser Applications, mu Spectroscopy ndi Cooled Thermal Imaging

Zomwe Zadziwika:

pro-zogwirizana-ico — Zojambula za

Plano-concave (PCV) Lens

f: Kutalika Kwambiri
f_b: Kutalika Kwambiri Kumbuyo
R: Radius of Curvature
t_c: Makulidwe apakati
t_e: 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

Zinthu Zapansi

Calcium Fluoride (CaF2)
Mtundu

Plano-Concave (PCV) Lens
Index of Refraction (nd)

1.428 @ Nd:Yag 1.064 μm
Nambala ya Abbe (Vd)

95.31
Thermal Expansion Coefficient (CTE)

18.85 x 10^-6/℃
Kulekerera kwa Diameter

Kuchuluka: +0.00/-0.10mm |Kusamalitsa Kwambiri: +0.00/-0.03 mm
Center Makulidwe Tolerance

Precison: +/-0.10 mm |Kulondola Kwambiri: +/-0.03 mm
Kuyang'ana Kwautali Kulekerera

+/- 2%
Ubwino Pamwamba (Scratch-Dig)

Nthawi: 80-50 |Kulondola Kwambiri: 60-40
Surface Flatness (Plano Side)

λ/4
Mphamvu Yozungulira Yozungulira (Convex Side)

3 la/2
Surface Irregularity (Peak to Valley)

λ/2
Pakati

Precison:<3 arcmin |Kulondola Kwambiri:<1 arcmin
Khomo Loyera

90% ya Diameter
AR Coating Range

2 - 5 m
Kupatsirana pamwamba pa zokutira (@ 0° AOI)

Mphamvu> 97%
Kuyang'ana pa Kuyika (@ 0° AOI)

Ravg< 1.25%
Kupanga Wavelength

588 nm