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  • SPECKLEFREE™ ILLUMINATE AST-ILM-1-3

    image type is jpg image type is jpg image type is jpg
      AST-ILM-1-3
      Glass reticle with line pair pattern. Before and after
      Laser illuminated difuse material. Before and after

    • REDUCES/SPATIAL/COHERENCE
    A free space optical system for illumination of a rectangular area with homogenized intensity distribution with reduced add/or controlled speckle contrast. Speckle contrast ratio measurements are dependent on many parameters in the apparatus used, e.g. illumination and/or projection lens f/#, camera lens f/#, camera sensor pixel size etc. By clicking My Input , you can provide us with parameters that are critical in your operating environment. Or put your questions to our Engineers for feedback. A brochure including some technical specification , is available to download here

    INPUTUser provided.
      Wavelength Range:
    		400-1100nm
      Max Laser Power:
    		3W (532 nm)
      Beam Diameter:
    		1-5 mm (collimated)
    OUTPUT 
      Transmission:
    		 > 70%
      Polarization:
    		Non-preserving as standard
      Illumination uniformity,
      Working Distance,
    		Determined by projection optics
      Illuminated area diagonal,
      Working f/#,
    PERFORMANCESpeckle Contrast Ratio < 2.5%

    Before and after images demonstrating Dyoptyka’s AST-ILM module in a polarisation-preserving configuration using diffractive optical elements (DOEs) to achieve beam shaping and intensity homogenisation, illuminating a rough surface (lined paper) of about 150x150mm. Camera exposure period was 20ms. Camera lens f/# was 4.7. (right click to enlarge)

    Baseline price: Will be quoted subject to your requirements. Click  'My Input'  to send us your application data.
    Approximate Dimensions: Height 53 mm, Length 70 mm, Width 80 mm, Weight 630 g.
    Lead time before shipping: 20 working days


    Dyoptyka, 7 Westland Court, South Cumberland Street, Dublin 2, Ireland.     Fax: +353 1 611 4626  Phone: +353 (0)1 6619766.   Email: