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Holographic Diffusers

Filament Imaged Through Low Angle Circular Diffuser
Projected Image of Lamp Filament
Filament Imaged Through Elliptical Diffuser

Filament Imaged Through Low Angle Circular Diffuser

Projected Image of Lamp Filament

Filament Imaged Through Elliptical Diffuser


  • Transmission Efficiency >85%
  • Elliptical and Circular Diffusing Outputs
  • Ideal for Visible and Near-Infrared Applications
  • UV Holographic Diffusers Also Available

Holographic Diffusers are used to control the diffuse area of illumination and increase transmission efficiency to greater than 90% from filament lamps, LEDs, arc lamps, and other sources. Standard ground glass and opal glass will produce diffuse illumination, but the diffuse light area will often exceed the requirements of the system. This over-illumination, associated with traditional diffusers, reduces efficiency and can often lead to added costs by requiring higher power illumination sources, lenses, and possibly filters. It is important to note that diffusing angles are given for a collimated input beam and angular divergence will vary for different incidence angles.

Unlike many holographic elements, these specific polycarbonate components can be used throughout the visible and near-infrared. Available individually, as umounted sheets, or in sets of four filters. Holographic Diffusers can be cleaned with a de-ionized water rinse, followed by a forced air drying. Wipe gently with lens tissue soaked with methanol, followed with a forced clean air or nitrogen drying. Holographic Diffusers are resistant to methanol and methylene chloride.

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