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Color Filter Glass : Neutral Density Filter Data
Item / Filter Type Standard Value Color Specification (Standard illuminants A) Thickness Reflective Index Chemical Properties Thermal Properties Mechanical Properties Specific Gravity
Tav (%) x y mm nd Dw DA Tg TS α -30/70 α 100/300 HK FA S
ND-03 10±2 0.453 0.408 2.5 - 1 3 490 565 60 65 530 100 2.41
ND-13 12.5±2 0.446 0.416 2.5 1.510 1 1 535 595 58 68 530 100 2.43
ND-25 25±2.5 0.447 0.415 2.5 1.507 1 2 535 600 62 66 550 100 2.42
ND-40 40±4 0.449 0.413 2.5 1.504 2 3 525 570 61 65 550 100 2.42
ND-50 50±5 0.445 0.412 2.5 1.504 2 4 495 555 62 66 550 90 2.42
ND-70 70±5 0.449 0.410 2.5 1.500 4 5 470 540 66 72 510 100 2.39
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Note: The listed data are standard value. Because of continuous product improvement, the various data listed are subject to change without notice.

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