Meniscus Lenses

Material: Bk7, Fused Silica, Silicon, Germanium, CaF2, MgF2

Specifications

Material	Bk7, (other material upon request)
Focal Length Tolerance	2%
Fringes	1-5
Irregularity of Fringes	0.2-0.5
Diameter Tolerance	+0.0/-0.10 mm
Center Thickness(Tc) Tolerance	+0.0/-0.10 mm
Centration	3 arc minutes
Clear Aperture	90% of Diameter
Surface Quality:	60-40 scratch and dig
Coating	Single-layer MgF2 AR Coateds

 

Note: All material and size are available upon request.