Lens-concave lens waa shayga ugu badan ee loo isticmaalo saadaasha iftiinka iyo fidinta laydhka.Dahaarka leh dahaarka ka-hortagga, muraayadaha waxaa loo isticmaalaa hababka kala duwan ee indhaha, lasers iyo shirarka.
Qalab | BK7, FS, UVFS, CaF2, ZnSe, Si, Ge |
Mawjada dhererka | 350-2000nm/185-2100nm |
Dulqaadka cabbirka | +0.0/-0.1mm |
Dulqaadashada Dhumucda | +/- 0.1mm |
Nadiifi Aperture | >85% |
Dulqaadka Focal Length | 5% (Heerka)/ 1%(Saxnaanta Sare) |
Tayada dusha sare | 40/20Heerka)/ 20/10(Saxnaanta Sare) |
Xarunta | <3 daq |
Dahaarka | Codsiga macaamiisha |