specifications:
dimension tolerance: +0.0/-0.2mm
thickness tolerance: ±0.2mm（general),±0.05(high precision)
surface quality: 60/40（general),10/5(high precision)
clear aperture: ＞90%
flatness: λ/2@633nm（general),λ/10@633nm (high precision)
parallelism:
ar coated: uncoated, ar,hr,pr, etc.
typical sizes:
roundshape:diameter(mm): φ5.0；φ10.0；φ12.7；φ15.0；φ20.0； φ25.4；φ30.0；φ38.1；φ50.8；φ76.2
square shape:wxh(mm) 5.0x5.0；10.0x10.0；15.0x15.0 ； 20.0x20.0；25.0x25.0；50.0x50.0
thickness tolerance: 0.5；1.0；1.5；2.0；3.0；4.0； 5.0；6.0；8.0；10.0; 50.0

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福州艾尔斯达光电科技有限公司
张雪飞
18059084811
福建省福州市仓山区金山橘园洲工业园31栋2层