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All Products / Optomechanics / Irises and Apertures / Pinholes and Slits

Pinholes and Slits

Pinholes and Slits are used to provide a fixed or adjustable aperture through which laser beams may be directed in a number of laser applications such as spatial filtering. Pinholes and Slits consist of variously shaped apertures within a range of materials or coatings designed to reflect or absorb laser light that does not pass through the opening. A selection of mounts is also available for holding aperture slides.

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New Chrome Coated Glass Optical Apertures Chrome Coated Glass Optical Apertures
  • Chrome Coating on Glass Substrate
  • Ideal for Precise Beam Control, Modulation, or Optical Alignment
  • Pinhole Diameters Ranging from 10µm to 1,000µm
Adjustable Optical Slit Adjustable Optical Slit
  • 6mm Maximum Clear Slit Opening
  • Fine Micrometer-Driven Mechanical Slit Adjustment
  • ¼-20 Hole for Mounting
Acktar Blackened Air Slits Acktar Blackened Air Slits
  • Wide-Band Low Reflectance Coating
  • 99% Absorbance from the EUV to SWIR
  • Slit Sizes Down to 25μm x 3mm
  • Unmounted and Mounted Versions Available
Acktar Blackened Pinholes Acktar Blackened Pinholes
  • Low Reflectance from the EUV to SWIR
  • 99% Absorbance Blackening Coating
  • Aperture Sizes from 20 to 1000μm
  • Available Unmounted and Mounted
High Power Apertures High Power Apertures
  • Ceramic, Copper, Gold-Plated Copper, Molybdenum, or Tungsten Substrates
  • Withstand High Power Densities up to 130MW/cm2 (For Mo and W Substrates)
  • Ideal for Spatial Filtering and Laser Aperturing
Precision Air Slits Precision Air Slits
  • Mounted Version Provides Secure Mechanical Support
  • Used in Optical Systems and Educational Efforts
  • Ideal for Spectrophotometer Image Analysis
Unmounted Precision Pinhole Precision Pinholes
  • Available in Aperture Mounts for a Secure Mechanical Support
  • Pinhole Sized Ranging from 1 to 1,000 Microns
  • High Power Apertures Available
2-Axis Adjustable Slits 2-Axis Adjustable Slits
  • Two Independently Adjustable Axes
  • Any Rectangular Slit Size up to 10 x 10mm
  • 50mm Outer Diameter for Ease of System Integration

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