Description General Tolerance In Speicial Case

Material Chinese Optical Glass Schott / Ohara / HOYA / Corning Glass

Type Photoengraving Etching&Filling

Liner Tolerance +/-0.005mm +/-0.002mm.

Diameter Range 10.00~50.00mm 5.00~100.00mm

Diameter tolerance +/-0.025mm +/-0.005mm

Form Error 3/3(0.5)fringe 3/1(0.2)fringe

Parallelism 1.0arcmin. 15.0 arc-seconds.

Surface Defects 20-10 Scratcher-Dig per MIL-PRF-13830B 10-5 Scratcher-Dig per MIL-PRF-13830B

Coating A/R coating A/R coating