Window/Mirror/Filter/Reticle

Size : 2.0~200mm in diameter or in diagonal.

Thickness : ≥ 0.3mm conditionally.

Flatness :  λ/10 for any 50mm of diameter.

                       It applies to aspect ratio of<10.

Parallelism : ≤ 1.0 arcsec.

Surface Defects : 5/A x 0.025 conditionally.