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Details

Category

Single Lens ,Doublet Lens, Aspheric  lensCylindrical Lens

Diameter

<Φ420mm

Material

Fused Silica ,BK7, Si, Ge ,MgF2, CaF2  etc.

Surface quality

20-10 or better

Irregularity

<λ/10@633nm

Coating

AR,HR