Precision Round Apertures
new!
Spatial Filter Apertures

  • 1 inch standard mount
  • blackened
  • high quality
  • from stock
  • fits most standard spatial filters.
  • Pinholes, Air Slits, and Custom Patterns for Optical, Laser,
    Astronomy and other Scientific Applications


    @@Quality Standards:

    Roundness : Major axis - Minor axis

    < 0.5 on holes 1-15,
    < 1 on holes 20-50,
    < 3 on holes 100 and up

    Finish:Optical research quality

    < 10µ-inch, on holes up to 50
    < 50µ-inch, on holes 65-250
    < 80µ-inch, on holes over 250


    Substrate Specifications:

    Finish: unblackened (see options below)
    Material: 302 stainless steel, non-magnetic (except for hs option)
    Diameter: 3/8 inch (0.375 inch), 9.53mm
    positional tolerance: ø.006 inch (0.15mm)
    thickness:
    0.0005 inch (12.7) on holes 5 and up. note:  holes 0.5 to 3.0,
    and possibly up to 10um, include the hs option for supported ultra-thin drill region)
    (0.5µm to 3.0µm holes are on 0.0001 inch - 0.0002 inch ni with .005in. backer)

    standard round pinholes
    cat. no. size () tolerance
    1-0.5 0.5 +0.3, -0
    1-1.0 1.0 +0.5, -0
    1-2.0 2.0 ±0.5
    1-3.0 3.0 ± 0.5
    1-5.0 5.0 ± 1
    1-10 10 ± 1
    1-15 15 ±1.5
    1-20 20 ± 2
    1-25 25 ± 2
    1-30 30 ± 2
    1-35 35 ± 2
    1-40 40 ± 3
    1-50 50 ± 3
    1-75 75 ± 3
    1-100 100 ± 4
    1-150 150 ± 6
    1-200 200 ± 6
    1-300 300 ± 8
    1-400 400 ± 10
    1-500 500 ± 10
    1-600 600 ± 10
    1-700 700 ± 10
    1-800 800 ± 10
    1-900 900 ± 10
    1-1000 1000 ±10
    1-size up to 7,000  

    Non-standard substrate diameter, thickness, material or tolerances:
    Note: Finish specifications do not necessarily apply to diameters other than standard .375 in.
    Per Quote
    Chemical Etching Per Quote

    Standard Options
    Standard Round Holes
    Option Description

    B-1

    Poly black, one side, ultra high (98%) emissivity 5 and up only

    B-2

    Oxide, dull black, both sides 5 and up only

    HS

    Extra heavy substrate, 0.005inch (0.127mm) thick, thinned down to required Ni thickness.
    (included with 0.5 -3.0 apertures)


    Contact sales for sizes over 1000um with this option

    CT Closer Tolerance; half of listed tolerance 5-15
    20-and up

    standard mounts
    Mount Description

    M

    25mm blackened aluminum mount (24.95mm x 2.54mm thk)

    M-1 1 inch blackened aluminum mount (0.996 inch x 0.100 inch thk)

    M-18

    18mm blackened aluminum mount (18mm x 2.54mm thk)

    m-0.5

    0.5 inch blackened aluminum mount (0.496 inch x 0.050 inch thk)


    Calibrations and Certifications

    Type Description

    C

    Calibrated; actual size, ± 0.5 or 1% (5 and up )

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