Collimation Homogenization Converters CHC25-633-4-FTC4

The LBTek Collimation Homogenization Converter (CHC) achieves beam homogenization and shaping based on the principle of spatial local light attenuation. The product features a three-piece flat-plate structure installed in a standard SM1 lens tube.

The converter comprises a structured waveplate and two parallel linear polarizers arranged at a specific angle. Linearly polarized light passes through the structured waveplate to generate vector polarized light, which then undergoes partial intensity attenuation of the Gaussian beam via the rear polarizer, achieving collimation and homogenization.

Compared to DOE homogenizers, the collimation homogenization converter can achieve flat-top beam shaping over long propagation distances, making it suitable for imaging, illumination, and long-distance laser processing applications.

Key Features

• Liquid crystal polymer / N-BK7 window plate / linear polarizing film material
• Three-piece flat plate structure with mechanical housing
• High uniformity light output with long propagation distance
• Optical attenuation principle for flat-top beam shaping
• Operating wavelengths: 532 nm and 633 nm
• Incident beam diameter options: 2 mm, 4 mm, 6 mm
• Requires high-quality incident light (single-mode, M2 < 1.3)