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Neutral Density Absorption Type Filters at 450-650 nm

Neutral Density Absorption Type Filters at 450-650 nm

EKSMA OPTICS neutral density (ND) filters attenuate VIS spectral region. The optical density varies from 0.1 to 3.0, 1 or 2 inches size square and round shapes are available.

from 23 $
delivery Estimated delivery time: 4 - 5 days
Qty discount: 5-9 pcs. of the same item - 5% OFF! 10+ pcs. 10% OFF!
Products
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Description
Size
Optical Density
Internal Trans­mi­ttance
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Round, ø25.4 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
240-2500 neutral density color glass ø25.4 mm 0.05 89% @ 546 nm 23 $ 4 - 5 days
i 240-2501 neutral density color glass ø25.4 mm 0.1 80% @ 546 nm 23 $ 4 - 5 days
i 240-2502 neutral density color glass ø25.4 mm 0.2 63% @ 546 nm 23 $ 4 - 5 days
i 240-2503 neutral density color glass ø25.4 mm 0.3 50% @ 546 nm 23 $ 4 - 5 days
i 240-2504 neutral density color glass ø25.4 mm 0.4 40% @ 546 nm 23 $ Request
i 240-2505 neutral density color glass ø25.4 mm 0.5 32% @ 546 nm 23 $ 4 - 5 days
i 240-2506 neutral density color glass ø25.4 mm 0.6 25% @ 546 nm 23 $ 4 - 5 days
i 240-2507 neutral density color glass ø25.4 mm 0.7 20% @ 546 nm 23 $ 4 - 5 days
i 240-2508 neutral density color glass ø25.4 mm 0.8 15% @ 546 nm 23 $ Request
i 240-2509 neutral density color glass ø25.4 mm 0.9 12.5% @ 546 nm 23 $ Request
i 240-2510 neutral density color glass ø25.4 mm 1 10% @ 546 nm 23 $ 4 - 5 days
i 240-2515 neutral density color glass ø25.4 mm 1.5 3% @ 546 nm 23 $ 4 - 5 days
i 240-2520 neutral density color glass ø25.4 mm 2 1% @ 546 nm 24 $ 4 - 5 days
i 240-2530 neutral density color glass ø25.4 mm 3 0.1% @ 546 nm 25 $ 4 - 5 days
i 240-2540 neutral density color glass ø25.4 mm 4 0.01% @ 546 nm 27 $ 4 - 5 days
i 240-2550 neutral density color glass ø25.4 mm 5 0.001% @ 546 nm 28 $ 4 - 5 days
i 240-2560 neutral density color glass ø25.4 mm 6 0.0001% @ 546 nm 29 $ 4 - 5 days
Rectangular, 25.4 x 25.4 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
i 240-2600 neutral density color glass 25.4 x 25.4 mm 0.05 89% @ 546 nm 24 $ 4 - 5 days
i 240-2601 neutral density color glass 25.4 x 25.4 mm 0.1 80% @ 546 nm 24 $ 4 - 5 days
i 240-2602 neutral density color glass 25.4 x 25.4 mm 0.2 63% @ 546 nm 24 $ Request
i 240-2603 neutral density color glass 25.4 x 25.4 mm 0.3 50% @ 546 nm 24 $ Request
i 240-2604 neutral density color glass 25.4 x 25.4 mm 0.4 40% @ 546 nm 24 $ 4 - 5 days
i 240-2605 neutral density color glass 25.4 x 25.4 mm 0.5 32% @ 546 nm 24 $ 4 - 5 days
i 240-2606 neutral density color glass 25.4 x 25.4 mm 0.6 25% @ 546 nm 24 $ 4 - 5 days
i 240-2607 neutral density color glass 25.4 x 25.4 mm 0.7 20% @ 546 nm 24 $ Request
i 240-2608 neutral density color glass 25.4 x 25.4 mm 0.8 15% @ 546 nm 24 $ Request
i 240-2609 neutral density color glass 25.4 x 25.4 mm 0.9 12.5% @ 546 nm 24 $ Request
i 240-2610 neutral density color glass 25.4 x 25.4 mm 1 10% @ 546 nm 24 $ 4 - 5 days
i 240-2615 neutral density color glass 25.4 x 25.4 mm 1.5 12.5% @ 546 nm 24 $ Request
i 240-2620 neutral density color glass 25.4 x 25.4 mm 2 1% @ 546 nm 25 $ 4 - 5 days
i 240-2630 neutral density color glass 25.4 x 25.4 mm 3 0.1% @ 546 nm 27 $ Request
i 240-2640 neutral density color glass 25.4 x 25.4 mm 4 0.01% @ 546 nm 28 $ 4 - 5 days
i 240-2650 neutral density color glass 25.4 x 25.4 mm 5 0.001% @ 546 nm 29 $ Request
240-2660 neutral density color glass 25.4 x 25.4 mm 6 0.0001% @ 546 nm 30 $ Request
Round, ø50.8 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
240-5000 neutral density color glass ø50.8 mm 0.05 89% @ 546 nm 62 $ Request
i 240-5001 neutral density color glass ø50.8 mm 0.1 80% @ 546 nm 62 $ 4 - 5 days
i 240-5002 neutral density color glass ø50.8 mm 0.2 63% @ 546 nm 62 $ Request
i 240-5003 neutral density color glass ø50.8 mm 0.3 50% @ 546 nm 62 $ Request
i 240-5004 neutral density color glass ø50.8 mm 0.4 40% @ 546 nm 62 $ 4 - 5 days
i 240-5005 neutral density color glass ø50.8 mm 0.5 32% @ 546 nm 62 $ 4 - 5 days
i 240-5006 neutral density color glass ø50.8 mm 0.6 25% @ 546 nm 62 $ 4 - 5 days
i 240-5007 neutral density color glass ø50.8 mm 0.7 20% @ 546 nm 62 $ Request
i 240-5008 neutral density color glass ø50.8 mm 0.8 15% @ 546 nm 62 $ 4 - 5 days
i 240-5009 neutral density color glass ø50.8 mm 0.9 12.5% @ 546 nm 62 $ 4 - 5 days
i 240-5010 neutral density color glass ø50.8 mm 1 10% @ 546 nm 62 $ 4 - 5 days
i 240-5015 neutral density color glass ø50.8 mm 1.5 3% @ 546 nm 62 $ Request
i 240-5020 neutral density color glass ø50.8 mm 2 1% @ 546 nm 63 $ Request
i 240-5030 neutral density color glass ø50.8 mm 3 0.1% @ 546 nm 64 $ Request
i 240-5040 neutral density color glass ø50.8 mm 4 0.01% @ 546 nm 65 $ 4 - 5 days
i 240-5050 neutral density color glass ø50.8 mm 5 0.001% @ 546 nm 66 $ 4 - 5 days
240-5060 neutral density color glass ø50.8 mm 6 0.0001% @ 546 nm 67 $ Request
Rectangular, 50.8 x 50.8 mm
Code Material Size Optical Density Internal Trans­mi­ttance Price Delivery Add to cart
240-5600 neutral density color glass 50.8 x 50.8 mm 0.05 89% @ 546 nm 61 $ Request
i 240-5601 neutral density color glass 50.8 x 50.8 mm 0.1 80% @ 546 nm 61 $ Request
i 240-5602 neutral density color glass 50.8 x 50.8 mm 0.2 63% @ 546 nm 61 $ 4 - 5 days
i 240-5603 neutral density color glass 50.8 x 50.8 mm 0.3 50% @ 546 nm 61 $ Request
i 240-5604 neutral density color glass 50.8 x 50.8 mm 0.4 40% @ 546 nm 61 $ Request
i 240-5605 neutral density color glass 50.8 x 50.8 mm 0.5 32% @ 546 nm 61 $ 4 - 5 days
i 240-5606 neutral density color glass 50.8 x 50.8 mm 0.6 25% @ 546 nm 61 $ 4 - 5 days
i 240-5607 neutral density color glass 50.8 x 50.8 mm 0.7 20% @ 546 nm 61 $ Request
i 240-5608 neutral density color glass 50.8 x 50.8 mm 0.8 15% @ 546 nm 61 $ Request
i 240-5609 neutral density color glass 50.8 x 50.8 mm 0.9 12.5% @ 546 nm 61 $ Request
i 240-5610 neutral density color glass 50.8 x 50.8 mm 1 10% @ 546 nm 61 $ 4 - 5 days
i 240-5615 neutral density color glass 50.8 x 50.8 mm 1.5 3% @ 546 nm 61 $ Request
i 240-5620 neutral density color glass 50.8 x 50.8 mm 2 1% @ 546 nm 62 $ 4 - 5 days
i 240-5630 neutral density color glass 50.8 x 50.8 mm 3 0.1% @ 546 nm 63 $ 4 - 5 days
i 240-5640 neutral density color glass 50.8 x 50.8 mm 4 0.01% @ 546 nm 64 $ 4 - 5 days
i 240-5650 neutral density color glass 50.8 x 50.8 mm 5 0.001% @ 546 nm 65 $ Request
240-5660 neutral density color glass 50.8 x 50.8 mm 6 0.0001% @ 546 nm 66 $ Request

Material neutral density color glass
Surface quality
60-40 scratch & dig (MIL-PRF-13830B)
Surface flatness 1 λ per inch @ 633 nm
Parallelism 3 arcmin
Diameter tolerance +0.0/-0.2 mm
Clear aperture 90% of diameter
Design wavelength 450-650 nm
Optical density tolerance +/- 5% of density

EKSMA Optics Neutral Density Absorption Type Filters
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EKSMA OPTICS neutral density (ND) filters attenuate VIS spectral region. The optical density varies from 0.1 to 3.0, 1 or 2 inches size square and roud shapes are available.

Neutral density absorption type filters decrease the intensity of light without altering the relative spectral distribution of the energy. They are used to filter the entire visible spectrum evenly, allowing light reduction, without influencing color or contrast. Attenuation is accomplished by using a light-absorbing glass.