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bi-concave cylindrical lens
Product description
*Material BK7 or other optical materials
*Dimension Tolerance +0.0~-0.1mm
*Center Thickness +/-0.1mm
*Focal Length Tolerance+/-1%
*Surface Quality:60/40
*Surface Figure λ/2 at 633nm on plano side
*Clear Aperture >90%
*Chamfer 0.25mm at 45 degree typical
*Coating Optional
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