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Meniscus Lenses
Meniscus Lenses
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Port
tianjin
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Baizhen Machinery Company
China
Main Products : sludge dewatering machine, volute press sludge dewatering, screw press
hepin lu Yangzhou, Jiangsu
Meniscus Lenses Details
Place of Origin
China
Material
Glass
Shape
Meniscus
Usage
Optical
Meniscus Lenses Introduce

Material: BK7A
Focal Length Tolerance: ±0.5%
Diameter Tolerance: +0/-0.2mm
Thickness Tolerance: ±0.2mm
Surface Flatness: λ/10
Centration Error: <3 arcmin
Surface Quality:

20/10
Clear Aperture: >90% of central diameter
Coating: Optional

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