• Homogenizes a light source

• Controls the emission pattern

• Superior transmission efficiency

• Kits contain four diffusers

• 25 and 50 mm diameter sizes 

Hot spots and uneven light distribution are common problems with 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. Large angle diffusers produce the greatest degree of homogenized 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.

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 diverge light, emulating a negative lens. They are wavelength independent and will work in white, monochromatic, coherent, or incoherent light. They work best in collimated light but also work well in non-collimated light. Their randomized structure eliminates moiré and color diffraction.

These diffusers are available in kits of four diffusers having similar diffusion angles. They are mounted in 25 or 50 mm diameter housings to be conveniently held in Newport mounts.

Laser: 0.2° x 40° FWHM EllipticalLED: 20° FWHM CircularFilament: 10° x 60° FWHM Elliptical

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

Lamp SourceMedium Circular DiffuserMedium Elliptical DiffuserLamp FilamentMedium Circular DiffuserMedium Elliptical DiffuserLEDMedium Circular DiffuserMedium Elliptical Diffuser