Showing 1–20 of 444 results

  • Edmund Optics 43-636 Uncoated, Sapphire Window – LOT OF 2

    $160.00

    Edmund Optics 43-636 Uncoated, Sapphire Window- LOT OF 2

    25.4mm Dia., 2.25mm Thick

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  • THOR LABS WG 41050 0.25.4MM UVFS WINDOW

    $75.00

    THOR LABS WG 41050 0.25.4MM UVFS WINDOW

    BROADBAND PRECISION WINDOW

    UNCOATED

    5MM THICK

    TP00639654

     

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  • CVI PW1-1037-C Laser Grade Plane Parallel Window

    $75.00

    CVI PW1-1037-C Laser Grade Plane Parallel Window

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  • ISP GE-W-25-2 Ge IR Window

    $50.00

    ISP Optics GE-W-25-2 Germanium Infrared Window
    Diameter: 25mm
    Thisckness: 2mm
    Specifications:
    – Dia tolerance: +0, -0.005″(+0, -0.13mm)
    – Th tolerance: �0.005� (�0.13mm)
    – Clear Aperture: 85%
    – Parallelism: 3 arc min
    – Flatness: 1/10 wave at 10.6 um
    – Surface Finish: 40/20

    ***MPN GE-W-25-2
    ***OEM ISP Optics
    ***SKU*** 28028

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  • NaCl Window, 1.25 inches by 0.25, sealed in bag

    $35.00

    This is a sodium chloride window. Unable to check condition of the surface because it is wrapped within tissue. It should be assumed that the surface will probably need light repolishing.

    Material � NaCl
    Diameter � 1.25 inches
    Thickness � 0.25 inches
    Focal Length � flat window
    Surface finish � unable to check
    Container � wrapped in tissue within sealed plastic bag with desiccant tube

    ***MPN
    ***OEM
    ***SKU*** DP393

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  • NaCl Window Blank, 0.5 inches x 2mm, etched (x4)

    $30.00

    Sealed bag contains four sodium chloride optical window blanks. Windows are the better selected pieces from large lot stored in petri dish without desiccant. They will need to be polished both sides.

    Material � NaCl
    Diameter � 0.5 inches
    Thickness 2mm
    Focal Length � flat window
    Surface finish � mostly clear, but some surface damage
    Container � plastic bag containing four pieces, not individually wrapped, no desiccant

    ***MPN
    ***OEM
    ***SKU*** DP391

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  • NaCl Window, 50mm x 25mm x 6mm, Superb

    $40.00

    Sodium Chloride crystal window, 50mm long, 25mm wide, and 6mm thick. Crystal is sealed in plastic bag (two desiccant tubes in bag). Crystal is wrapped in tissue and could not be examined without opening. Like most salt windows, it should be assumed that this may need to be repolished. This lot consists of one crystal window.

    Material � NaCl
    Dimensions 50mm x 25mm
    Thickness � 6mm
    Focal Length � flat window
    Surface finish � could not evaluate � crystal wrapped in tissue inside sealed bag.
    Container � sealed plastic with paired desiccant tubes inside

    ***MPN
    ***OEM
    ***SKU*** DP389

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  • NaCl Window, 36mm diameter, 9mm thick,

    $30.00

    Sodium Chloride window, 36mm in diameter, 9mm thick. There is a significant fracture on one edge of the crystal approximately 14mm wide, and extending about 6mm from the edge. You will probably wish to repolish one side. Window was in unsealed bag with desiccant. Part number on padded envelope is #03609.

    Material � NaCl
    Diameter � 36mm
    Thickness � 9mm
    Focal Length � flat window
    Surface finish � very lightly etched on one side, other side appears blemish-free
    Container � cotton-padded cloth sleeve pouch with desiccant container.

    ***MPN
    ***OEM
    ***SKU*** DP386

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  • NaCl Window, 50mm x 40mm x 20mm, Corner

    $80.00

    This is a very large sodium chloride crystal window. Crystal has been bumped � there is a significant fracture in one corner that extends approximately 6mm diagonally into the plate, otherwise the window appears unflawed. This lot consists of one crystal window.

    Material � NaCl
    Dimensions 50mm x 40mm
    Thickness 20mm
    Focal Length � flat window
    Surface finish � visually perfect � significant flaw in one corner (see photo)
    Container � sealed plastic bag without desiccant

    ***MPN
    ***OEM
    ***SKU*** DP385

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  • NaCl Rectangular Window 50 x 40mm

    $119.00

    This is a very large sodium chloride crystal window.

    Material: NaCl
    Dimensions: 50 x 40mm
    Thickness: 20mm
    Focal Length: flat window
    Surface finish: visually perfect � very minor corner flaws (less than 0.5mm)
    Container: sealed plastic bag includes desiccant
    ***MPN
    ***OEM
    ***SKU*** DP384

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  • NaCl Window, 38mm x 19mm x 4mm, Superb

    $40.00

    This is an individual crystal sodium chloride window. The windows show trace evidence of adhesion to the tissue that wrapped them..

    Material � NaCl
    Dimensions 38mm x 19mm
    Thickness 4mm
    Focal Length � flat window
    Surface finish � very lightly etched
    Container � plastic bag individually wrapped in tissue, without desiccant

    ***MPN
    ***OEM
    ***SKU*** DP383

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  • NaCl Windows, 38mm x 19mm x 4mm, Some

    $50.00

    This is a quantity of three sodium chloride windows. All of the windows show some adhesion to the tissue that wrapped them, one a bit worse than the others. They will need to be repolished both sides.

    Material � NaCl
    Dimensions 38mm x 19mm
    Thickness 4mm
    Focal Length � flat window
    Surface finish � moderately etched
    Container � plastic bag individually wrapped in tissue, without desiccant

    ***MPN
    ***OEM
    ***SKU*** DP382

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  • Unknown Salt Window ~1.550 inches by < 0.25

    $60.00

    This lot consists of two windows of an unknown salt crystal. They are suspended inside fiberboard tubes by slightly smaller tubes inserted into either side of the larger tube. I did not wish to remove the tubes, so I can only guess at the thickness, being on the order of 0.15 to 0.25 inches. The diameter is less than 1.6 inches, and may be as small as 1.550 inches. The crystal windows are in excellent condition � I could not detect any degradation. The outer tubes are lined with desiccant packages. There appear to be two identical windows � unfortunately, no markings as to compound, or dimensions. Listing includes both pieces.

    Material � Unknown
    Diameter 1.6 inches
    Thickness 0.15 � 0.25 inches
    Focal Length � flat window
    Surface finish � visually excellent

    ***MPN
    ***OEM
    ***SKU*** DP381

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  • Salt Window 2.16 x 0.25 inches

    $200.00

    This is a large window of an unknown salt crystal.

    Material � Unknown
    Diameter = 2.158 inches
    Thickness = 0.25 inches
    Focal Length � flat window
    Surface finish � visually superb
    Container � tissue wrap without desiccant

    Location MB 112
    Photo set 814.

    Salt window only.
    Micrometer in photo is NOT included..

    BMI Surplus, Inc. has a huge inventory of used, new, pre-owned and recycled Optical Windows & Flats for sale.
    We will work with you individually to find the perfect set up for your application.

    Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

    BMI Surplus, Inc. is a dealer in used and sometimes new Surplus Scientific & Industrial Equipment – we cater to clients in search of items to be used for specific applications.
    We do not offer a guarantee as many of our items are purchased by professionals in need of parts and pieces.
    You will find many of our items listed on our website as untested or as parts or repair units even though in they are in good used condition.

    **Shipping, Handling & Freight fees are dependent on your location.
    We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
    We have 32 years of experience shipping sensitive scientific instruments & industrial equipment!

    Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.
    ***MPN
    ***OEM Custom
    ***SKU*** DP379

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  • KBr window, 1.587 x 0.171 – Needs Repolishing

    $30.00

    Large KBr salt crystal window with surface flaws (caliper not included)

    Material � Potassium Bromide
    Diameter 1.6 inches
    Thickness 0.17 inches
    Focal Length � flat window
    Surface finish � strongly etched, (with foreign contaminants?)
    Container � Plastic box with tissue lining, no desiccant.

    This crystal will need to be repolished � one face appears to have some contaminants on the surface, the other face is lightly etched. Box is marked �KBy� but outside edge of crystal is correctly marked KBr.

    ***MPN
    ***OEM
    ***SKU*** DP378

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  • Van Keuren set of four Optical Flats in case

    $550.00

    This is an extraordinary set of Van Keuren fused-quartz optical flats complete with fitted hardwood cabinet. The set consists of three flats of two inch diameter and one flat of three inches diameter. All are 0.625 inches in thickness.

    All four flats are accurate to 1 millionth of an inch on both surfaces. The three inch flat is marked 1CC for the bottom, 1CV for the top. All of the two inch flats are marked similarly � 1CV for the bottom and 1CC for the top. CV denotes �convex�, and CC denotes �concave�. I believe these are the highest grade flats that were commercially manufactured by Van Keuren, otherwise known as the �Reference� accuracy.

    The flats are in absolutely flawless condition � there are no chips, scratches, or other blemishes on any of the surfaces. There is a current calibration sticker affixed to the cabinet (due date is 31 August 2010).

    Location MB 94.

    Photo set 761..

    BMI Surplus, Inc. has a huge inventory of used, new and pre-owned Optical Windows and Flats for sale.
    We will work with you individually to find the perfect set up for your application.

    Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

    BMI Surplus, Inc. is a dealer in used and sometimes new Surplus Scientific and Industrial Equipment – we cater to clients in search of items to be used for specific applications.
    We do not offer a guarantee as many of our items are purchased by professionals in need of parts and pieces.
    You will find many of our items listed on our website as untested or as parts or repair units even though in they are in good used condition.

    **Shipping, Handling and Freight fees are dependent on your location.
    We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
    We have 33 years of experience shipping sensitive scientific instruments and industrial equipment!

    Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.

    ***MPN
    ***OEM Van Keuren
    ***SKU*** DP329

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  • Spectral Systems 975-Disk ZnSe Window

    $99.00

    Spectral Systems 975-Disk ZnSe Window

    25x2mm
    Near I.R. A/R
    ***MPN 975-Disk
    ***OEM Spectral Systems Inc.
    ***SKU*** 64608

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  • 50mm Fused Silica Window

    $50.00

    50mm Fused Silica Window

    12.5mm Thick
    2050 UV
    ***MPN
    ***OEM Brand Unmarked
    ***SKU*** 64607

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  • Melles Griot ZNS Window 25mm

    $50.00

    Melles Griot ZNS Window 25mm

    4mm Thick
    Polished one side
    Fine ground one side
    ***MPN
    ***OEM Melles Griot
    ***SKU*** 64606

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  • Meller Optics Sapphire Plate

    $200.00

    Meller Optics Sapphire Plate

    SCD2870-02A
    3.900″ X 1.500″ X 0.118″ THK
    ***MPN SCD2870-02A
    ***OEM Meller Optics
    ***SKU*** 62441

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