Plano-convex lenses inoburitsa kushomeka kwedenderedzwa kana yakatarisa kune infinity (apo chinhu chemufananidzo chiri kure uye conjugate ratio yakakwira). Naizvozvo ndiwo ekuenda-ku-lens mumakamera uye teresikopu. Kunyanya kushanda kunowanikwa kana plano yakatarisana nendege inodiwa, nemamwe mazwi, nzvimbo yakakomberedzwa yakatarisana nedanda rechiitiko. 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 pezviviri izvi zvakakosha, Bi-convex lenzi anowanzo kuve 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 kutumirwa kwepamusoro 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.
Calcium Fluoride (CaF2)
Asina kuvharwa kana neAntireflection Coatings
Inowanikwa kubva 20 kusvika 1000 mm
Inokodzera Kushandiswa muExcimer Laser Zvikumbiro, muSpectroscopy uye Yakatonhorera Thermal Imaging.
Substrate Material
Calcium Fluoride (CaF2)
Type
Plano-Convex (PCV) Lens
Index yeRefraction
1.428 @ Nd:Yag 1.064 μm
Abbe Number (Vd)
95.31
Thermal Expansion Coefficient (CTE)
18.85 x 10-6/K (20 - 60℃)
Diameter Tolerance
Precison: +0.00/-0.10mm | High Precision: +0.00/-0.03 mm
Pakati Makobvu Kushivirira
Precison: +/-0.10 mm | High Precision: +/-0.03 mm
Focal Length Tolerance
+/- 2%
Hunhu hwepamusoro (Scratch-Dig)
Precison: 80-50 | High Precision: 60-40
Surface Flatness (Plano Side)
λ/2
Spherical Surface Power (Convex Side)
3 λ/2
Surface Irregularity (Peak to Valley)
λ/2
Center
Precison:<3 arcmin | High Precision:<1 arcmin
Clear Aperture
> 90% yeDyamita
AR Coating Range
1.65 µm - 3.0 μm | 2 - 5 μm
Kufambisa pamusoro peCoating Range (@ 0° AOI)
Tavg > 98% | Tavg > 95%
Reflectance over Coating Range (@ 0° AOI)
Ravg<1.25%
Dhizaini Wavelength
588 nm