BH Square Diffuser - double sided square lens array with improved uniformity

BH square diffusers (Broadband  high Homogeniety diffusers) are special flat-top beam shaping micro-refractive line diffusers, based on double sided square packed micro lens arrays.

Useful for any  laser application where shaping needs to be sharp, regardless of laser M2 , the BH square  diffuser offers excellent efficiency and uniformity within the sharp square shape. 

Typical applications include: 

  • UV laser curing, de bonding, annealing and other processing
  • Semiconductor wafer defect. inspection
  • Multi KW ~1um IR laser processing – plate welding,  sintering , hardening

By combining precisely controlled  diffusion into the surfaces of the lens arrays, our BH square diffuser offers several advantages over standard  fly eye type diffusers:

  • Excellent uniformity – the addition of random diffusion eliminates order artifacts that exist in standard double sided square lens arrays.
  • High efficiency (>95%)
  • UV fused silica material, optimal for high power and UV laser applications.
  • Same performance for a wide wavelength spectrum from IR to UV.
 

SPEC TABLE FOR Standard BROADBAND DIFFUSER products

PN
Shape
Diffusion Angle (degrees)
Dimensions
Central Thickness
Material
Download Data Sheet
Add to Quote
BH-002
Square
5.5 X 5.5 +-0.5
15X15mm
2.29mm
UV Fused Silica
Download here
Add to Quote