Calcium Fluoride (CaF₂)
Plano-Convex Lenses

Plano-convex (PCX) lenzi ma lenzi akanaka ayo ari mukobvu mukati kupfuura ari kumucheto, kana mwaranzi yakasanganiswa ichipinda mavari, mwenje unochinjika kuenda kunzvimbo yepanyama.Plano-convex lenses ane rimwe divi rakati sandara uye rimwe divi rakakombama rine radius yakanaka yekukona.Malenzi ePlano-Convex ane hurefu hwekutarisa uye nzira yakanakisa yeasingaperi uye ane magumo conjugate application.Malenzi aya anotarisisa danda rakakomberedzwa kumberi kwekutarisa uye kudhumhana mwenje kubva kunobva nzvimbo.Iwo akagadzirwa ane kushoma spherical aberration uye ane kureba kwakapihwa ne:
f= R/(n-1),
uko R iri radius yekukombama kwechikamu che convex chelenzi uye n indekisi yekuramba.

Plano-convex lenses inoburitsa kushomeka kudiki kana yakatarisa kune infinity (apo chinhu chemufananidzo chiri kure uye conjugate ratio yakakwira).Naizvozvo ndiwo ekuenda-ku-lens mumakamera uye teresikopu.Kunyanya kushanda zvakanaka kunowanikwa kana plano yakatarisana nendege inodiwa, nemamwe mazwi, nzvimbo yakakomberedzwa yakatarisana nebango rechiitiko chakakanganiswa.Plano convex lenzi isarudzo yakanaka yekubatanidza mwenje kana yekutarisa maapplication uchishandisa monochromatic mwenje, mumaindasitiri akadai semaindasitiri, emishonga, marobhoti, kana kudzivirira.Iwo isarudzo yehupfumi yekuda maapplication nekuti ari nyore kugadzira.Sekutonga kwechigunwe, plano-convex lenses inoita zvakanaka kana chinhu nemufananidzo zviri paabsolute conjugate ratios> 5:1 kana <1:5, saka spherical aberration, coma uye kukanganisa zvinoderedzwa.Kana iyo mhedziso inodiwa kukudza iri pakati pezvinhu zviviri izvi, Bi-convex lenzi anowanzo akakodzera.

Nekuda kwekutapurirana kwayo kwakanyanya kubva ku0.18 µm kusvika ku8.0 μm, CaF₂inoratidza yakaderera refractive index inosiyana kubva 1.35 kusvika 1.51 uye inowanzoshandiswa pazvikumbiro zvinoda kutapurirana kwakanyanya mu infrared uye ultraviolet spectral ranges.Calcium fluoride zvakare yakanyatso makemikari inert uye inopa kuomarara kwepamusoro kana ichienzaniswa neyayo barium fluoride, uye magnesium fluoride makunakuna.Paralight Optics inopa Calcium Fluoride (CaF₂) plano-convex lenzi ane antireflection coatings eiyo 1.65 µm kusvika 3.0 µm kana 2 µm kusvika 5 µm wevelength renji.Uku kupfekedza kunoderedza zvakanyanya avhareji yekuratidzira kweiyo substrate isingasviki 1.25%, ichipa avhareji yekutapurirana yakakura kupfuura 95% pairi rese AR coating renji.Tarisai maGrafu anotevera kune mareferensi ako.