A double convex lens consists of two convex surfaces with equal radii, which can focus light into a point with a positive focal length. It can be used in 1:1 imaging systems and multi-component systems, effectively reducing spherical aberration while improving coma aberration and distortion.

Material: CaF2, MgF2, quartz, K9, etc.

Design wavelength：587.6nm

Central Thickness Tolerance: ± 0.1mm

Dimensional Tolerance: ± 0.1mm

Focal Length Tolerance: ± 1%

Surface Quality: 60/40

Surface Accuracy: λ/10~2λ