Compare Model Drawings, CAD & Specs Type Diffusion Angle (FWHM) Diameter Clear Aperture Availability Price
$504
In Stock
Diffuser Kit, Narrow 0.5°, 1°, 5°, 10° 25.4 mm 21.4 mm
In Stock
$504
In Stock
Diffuser Kit, Medium 10°, 15°, 20°, 25° 25.4 mm 21.4 mm
In Stock
$504
In Stock
Diffuser Kit, Wide 30°, 40°, 60°, 80° 25.4 mm 21.4 mm
In Stock
$642
In Stock
Diffuser Kit, Narrow 0.5°, 1°, 5°, 10° 50.8 mm 45.0 mm
In Stock
$642
2 Weeks
Diffuser Kit, Medium 10°, 15°, 20°, 25° 50.8 mm 45.0 mm
2 Weeks
$664
In Stock
Diffuser Kit, Wide 30°, 40°, 60°, 80° 50.8 mm 45.0 mm
In Stock

Specifications

  • Wavelength Range
    365-1600 nm
  • Material
    Polycarbonate
  • Angular Deviation
    ≤10°: ±0.5°
    >1° <10°: ±1°
    >10°: ±10%
  • Thickness
    0.76 mm
  • Damage Threshold
    0.22 J/cm2 with 10 nsec pulses at 1064 nm, typical
  • Cleaning
    DI water rinse followed by forced air drying, wipe gently with lens tissue soaked with methanol, followed with forced clean air or nitrogen drying (acetone can not be used)

Features

Random, Non-periodic Surface Structures

These diffusers have a surface that is holographically replicated on polycarbonate from a holographic master. They have a surface with completely random, non-periodic structures that can be thought of as randomized micro lenslets. They cause light to diverge at up to the filter's specified cone angle. The random size and orientation of the structure eliminates both wavelength dependent effects and moiré interference effects. They will work with both polychromatic and monochromatic light that is either coherent or incoherent. They work best with collimated light but also work well in non-collimated light, albeit emitting somewhat wider than the nominal angle.

Smooth and Homogenize Light Sources

Hot spots and uneven light distribution are common problems with most light sources, including filament lamps, arc lamps, LEDs, cold cathode fluorescent lamps, fiber optics, and lasers. Light Shaping Diffusers® smooth and homogenize these sources while providing uniform light in critical applications. The energy distribution from these diffusers closely approximates a flat top distribution across the specified range of angles. Diffusers are available in both circular and elliptical beam patterns. Large angle diffusers produce the greatest degree of homogenized light.

Precisely Shape, Control, & Distribute Light

Light Shaping Diffusers also precisely shape, control, and distribute light into a specific cone angle. This cone angle can be either symmetrical (circular) or asymmetrical (elliptical). Standard circular angles range from 0.5° to 80° FWHM, while standard elliptical angles range from 0.2° x 10° to 35° x 95°. Transmission efficiency is superior to other diffusers between 365–1600 nm. The diffuser surface is antireflective in nature and therefore utilizes light that would otherwise be wasted due to Fresnel loss. LED light is shown before and after a circular and elliptical diffuser.

Applications

  • Homogenize laser beams and LEDs
  • Remove filament structure from extended sources
  • Homogenize and shape the output of fiber optic bundles
  • Remove "hot spots" from LED displays
  • Homogenize and shape the output of LCD backlights
  • Highly efficient viewing screens