Optical Pinholes - Optical Slits

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Adjustable Optical Slit

6mm Maximum Clear Slit Opening
Fine Micrometer-Driven Adjustment
¼-20 Hole for Mounting

New Acktar Blackened Pinholes

Low Reflectance from the EUV to SWIR
99% Absorbance Blackening Coating
Aperture Sizes from 50 to 1000μm
Available Unmounted and Mounted

New 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

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

Mounted Version Provides Secure Mechanical Support
Used in Optical Systems and Educational Efforts
Ideal for Spectrophotometer Image Analysis

Precision Pinholes

Available in Aperture Mounts for a Secure Mechanical Support
Pinhole Sized Ranging from 1 to 1,000 Microns
High Power Apertures Available

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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.