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 iyo isingaperi conjugate kudzikisa spherical aberration (kunze kwekunge ichishandiswa neakakwira-energy lasers apo izvi zvinofanirwa kudzoserwa kubvisa mukana weiyo chaiyo. focus).
Nekuda kwekutapurirana kwayo kwakanyanya kubva ku0.18 µm kusvika ku8.0 μm, CaF2 inoratidza yakaderera refractive index inosiyana kubva ku1.35 kusvika 1.51 uye inowanzoshandiswa pakushandisa zvinoda 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, kunopa avhareji yekufambisa inopfuura 97% pamusoro peiyo AR coating renji. Tarisai maGrafu anotevera kune mareferensi ako.
Calcium Fluoride (CaF2)
Asina kuvharwa kana neAntireflection Coatings
Inowanikwa kubva -18 kusvika -50 mm
Inokodzera Kushandiswa muExcimer Laser Zvikumbiro, muSpectroscopy uye Yakatonhorera Thermal Imaging.
Substrate Material
Calcium Fluoride (CaF2)
Type
Plano-Concave (PCV) Lens
Index of Refraction (nd)
1.428 @ Nd:Yag 1.064 μm
Abbe Number (Vd)
95.31
Thermal Expansion Coefficient (CTE)
18.85 x 10-6/℃
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/4
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
2 - 5 μm
Kufambisa pamusoro peCoating Range (@ 0° AOI)
Tavg > 97%
Reflectance over Coating Range (@ 0° AOI)
Ravg<1.25%
Dhizaini Wavelength
588 nm