Ø1英寸镀增透膜的吸收型中性密度滤光片
l 衰减可见或近红外光
l 可选增透膜：A型（350-700纳米）或者B型（650-1050纳米）
l 可选光密度：0.3，1.0或2.0
l 已安装的和未安装的Ø1英寸圆形滤光片可供选择
l 增透膜极大地减少了光学系统中的背反射光
l 已安装的产品刻有产品编号和增透膜波长范围
l 低功率应用（小于1瓦）的理想选择
规格
General Specifications
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Diameter
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25.0 mm
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Diameter Tolerance
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+0.0 / -0.25 mm
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Clear Aperture
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90% Outer Diameter
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Surface Flatness (@633 nm)
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λ/10
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Scratch-Dig
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40-20
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Parallelism
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10 arcsec
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Substrate (Schott)
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NG11 for Part Numbers Starting with NE03
NG4 for Part Numbers Starting with NE10
NG9 for Part Numbers Starting with NE20
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Substrate Thickness*
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2.26 mm for Part Numbers Starting with NE03
1.82 mm for Part Numbers Starting with NE10
1.46 mm for Part Numbers Starting with NE20
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