Calcium Fluoride (CaF2)
Plano-Concave Lenses

Plano-concave lenses malenzi asina kunaka ayo akakora kumucheto kupfuura ari pakati, kana chiedza chikapfuura nepakati pawo, chinosiyana uye nzvimbo yekutarisa ndeyechokwadi.Kureba kwavo kwakananga kwakashata, pamwe chete neradius ye curvature yenzvimbo dzakakombama.Tichifunga nezve spherical spherical aberration, ma plano-concave lenzi anogona kushandiswa kudzikamisa kutenderera kwakatenderedzwa kunokonzerwa nemamwe malenzi muoptical system.Plano-concave lenses anobatsira pakusiyanisa danda rakatenderedzwa uye kubatanidza danda rakachinjika, anoshandiswa kuwedzera mwenje wemwenje uye kuwedzera hurefu hwakatarisana mumasisitimu emeso aripo.Aya malenzi asina kunaka anowanzo kushandiswa mumateresikopu, makamera, lasers kana magirazi kubatsira magnification masisitimu kuti awedzere compact.

Plano-concave lenzi anoita zvakanaka kana chinhu nemufananidzo zviri paabsolute conjugate ratios, yakakura kupfuura 5:1 kana isingasviki 1:5.Muchiitiko ichi, zvinokwanisika kuderedza spherical aberration, coma, uye kukanganisa.Saizvozvo ne plano-convex lenses, kuti ibudirire zvakanyanya nzvimbo yakakomberedzwa inofanirwa kutarisana nechinhu chikuru chinhambwe kana chisingaperi conjugate kudzikisa spherical aberration (kunze kwekunge ichishandiswa neakakwira-energy lasers apo izvi zvinofanirwa kudzoserwa kubvisa mukana weiyo chaiyo. focus).

Nekuda kwekutapurirana kwayo kukuru kubva ku0.18 µm kusvika ku8.0 μm, CaF2 inoratidza yakaderera refractive index inosiyana kubva pa1.35 kusvika 1.51 uye inowanzoshandiswa pamaapplications anoda kufambiswa kwepamusoro mu infrared uye ultraviolet spectral ranges, ine refractive index ye1.4024 pa1. .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-concave lenses ine antireflection coatings ye2 µm kusvika 5 µm wavelength renji yakaiswa panzvimbo dzese dziri mbiri.Uku kupfekedza kunoderedza zvakanyanya kutaridzika kwepamusoro kweiyo substrate, inopa avhareji yekutapurirana inodarika 97% pamusoro peiyo AR coating renji.Tarisai maGrafu anotevera kune mareferensi ako.