Surplus - Edge Filters

Surplus - Edge Filters

Surplus - Edge Filters

Surplus Edge Filters from Andover Corporation provide exceptional value on high-quality long-wave pass and short-wave pass filters at reduced prices. These optical components offer well-defined transitions between reflecting and transmitting regions, making them ideal for wavelength isolation applications.

Each surplus edge filter features the same durable, first-surface dielectric coatings and precise optical specifications as our standard product line, but at significant savings. These filters utilize interference effects rather than absorption to isolate spectral bands, providing steeper transitions than comparable colored glass alternatives. Our surplus inventory includes various cut-on and cut-off wavelengths across the UV, visible, and NIR spectrum, perfect for researchers, educational institutions, and companies seeking cost-effective solutions for fluorescence applications, photometry, and spectral management. Despite being offered at discounted prices, these filters maintain excellent optical quality and performance. Inventory changes regularly, so we recommend checking our listings frequently for the best selection.

    PART NO.
    DESCRIPTION
    1 - 5 pcs.
    6 - 10 pcs.
    > 10 pcs.
    Stock Status

    610.0 / STEEP LWP – 53761-B

    610nm Steep-Edge Long Pass Filter, 25mm dia.

    $163.00
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    In Stock: 27

    625.0 / SWP – 86407

    IR Cut 625 nm Shortwave Pass, Borofloat, 25mm dia

    $62.00
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    In Stock: 200

    625.0 / SWP – 86407-B

    IR Cut 625 nm Shortwave Pass, Borofloat, 12.5mm dia

    $45.00
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    In Stock: 200

    625.0 / SWP – 86407-C

    IR Cut 625 nm Shortwave Pass, Borofloat, 50mm dia

    $95.00
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    In Stock: 13

    635.0 / STEEP LWP – 70197-B

    Custom LWP filter at 635nm with a 1% slope 50mmSQ

    $485.00
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    In Stock: 8

    650.0 / STEEP LWP – 53621

    650nm Steep-Edge Long Pass Filter, 26.0 x 29.0mm sq.

    $240.50
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    In Stock: 3

    650.0 / SWP – 86403

    IR cut 650 nm Shortwave Pass, Borofloat, 25mm dia

    $62.00
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    In Stock: 200

    650.0 / SWP – 86403-B

    IR cut 650 nm Shortwave Pass, Borofloat, 12.5mm dia

    $45.00
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    In Stock: 200

    650.0 / SWP – 86403-C

    IR cut 650 nm Shortwave Pass, Borofloat, 50mm dia

    $95.00
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    In Stock: 42

    668.0 / LWP – 72677

    668nm Long Pass Filter, 25mm dia.

    $215.00
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    In Stock: 3

    675.0 / STEEP LWP – 64780-B

    Custom STEEP LWP filter at 675nm with a 1% slope

    $135.00
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    In Stock: 19

    680.0 / LWP – 57892

    LWP Dichroic Filter / Cut-on W/L 680.0nm / 24mm dia

    $165.00
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    In Stock: 4

    683 / LWP – 64780-C

    STEEP LWP filter at 683nm with a 1% slope

    $92.00
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    In Stock: 13

    690 / LWP – 85021-B

    690nm Steep-Edge Long Pass Filter, 25mm dia.

    $163.00
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    In Stock: 14

    690.0 / STEEP LWP – 53762-B

    690nm Steep-Edge Long Pass Filter, 25mm dia.

    $163.00
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    In Stock: 10

    725.0 / STEEP LWP – 68675

    725 STEEP LWP / 48MM diameter

    $745.00
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    In Stock: 2