Cum diiudicatio inter lens plano-concavatum et lens bi-concavata, utraque causa in lucem incidens divergentiam, aptius est eligat lens bi-concava, si ratio absoluta conjugata (distantia objecti per distantiam imaginalem divisa) prope 1. Cum magnificatio absoluta desiderata est vel minor quam 0,2 vel maior quam 5, proclivitas est eligere lentis plano-concavatarum loco.
ZnSe lentes aptissima sunt maxime ad usum lasers cum summus potentia CO2.Optica paralight offert Zinc Selenide (ZnSe) Bi-Concave vel Duplici-Concave (DCV) Lentes paratae cum lata banda AR efficiens optimized pro 8-12 μm extensionis spectris in utraque superficie deposita.Haec efficiens multum remittit altam superficiei reflexionem subiecti, praebens transmissionem mediocris in excessu 97% per totam extensionem AR efficiens.Pro magis notitia in artibus, quaeso sequentia Graphs pro indiciis tuis inspicias.
Cadmiae Selenide (ZnSe)
Available Uncoated an antireflection coatings
Available ex -25.4mm ad -200 mm
Specimen pro CO2 Laser Applications Ob Low Coefficiens effusio
Substratum Material
Laser-Grade Zinc Selenide (ZnSe)
Type
Geminus-Convave (DCV) Lens
Index Refractionis
2.403 @ 10.6μm
Abbatis Number (Vd)
Non definitur
Scelerisque Expansion Coefficient (CTE)
7.1x10-6/ at 273K
Diameter Tolerantia
Praesicion: +0.00/-0.10mm |High Preison: +0.00/-0.02mm
Crassitudo tolerantia
Praesicion: +/-0.10 mm |High Preison: +/-0.02 mm
Arx Longitudo Tolerantia
+/- 1%
Superficiem Quality
Praesicion: 60-40 |Alta Preison: 40-20
Sphaerica Superficies
3 λ/4
Superficies Irregularitas (Peak ad Valley)
λ/4 @633 nm
Centration
Precision:< 3 arcmin |Princeps Precision<30 arcsec
Patet Apertura
LXXX% diametri
AR Coating Range
8 - 12 μm
Meditatio super Coating Range (@ 0° AOI)
Ravg<1.0%, Rabs< 2.0%
Transmissio super Coating Range (@ 0° AOI)
Tavg > 97%, Tabs > 92%
Design Wavelength
10.6 μm
Laser damnum Limen
5 J/cm2(100 ns, 1 Hz, @10.6μm)