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squarerplano-concavecylindrical lesses
specification1: material bk7 , fused silica
surface figure λ /2@633nm on plano side
surfacequality 60-40
dimensionaltolerance + 0.0mm, - 0.1mm
thicknesstolerance ± 0.2mm
chamfer 0.25mm at 45° typical
concentricity 3 minutes
focallengthtolerance ± 1% typical
antireflection coating
wavelength user specified           r0.25% for v-type ar coatingr 0.5% for bbar coating, per surface. 
clear aperture exceeds central 85% of dimension
specifications2:
material uvgrade caf2
surface figure 1alongcurved axis y,1 per cm along x dimension, p-v at 633 nm before coating
surfacequality 60-40
dimensionaltolerance +0.00mm, - 0.1mm
thicknesstolerance ±0.2mm
chamfer 0.25mm@ 45° typical
concentricity λ/3minutes
focallengthtolerance ±1%typical
antireflection coating
wavelength user specifiedr 0.25% for v-type ar coatingr 0.5% for bbar coating, per surface.
clear aperture exceeds central 85% of dimension
note: dimensionandspecification are available upon requests

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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