Frosted Diffuser

Product Code: 120206000557 Typical FOI Angle (FWHM) Horizontal: 128° Typical FOI Angle (FWHM) Vertical: 112°

The PoG (Polymer on Glass) diffuser combines a micro-structured polymer layer on a glass substrate, offering wide wavelength coverage (450–2000nm), high transmission (>90%), customizable divergence angles (10°–130°) with various beam shapes, and excellent thermal stability (-40°C to 125°C, reflow soldering up to 260°C). It is a cost-effective, reliable, and scalable solution for VCSEL-based applications such as 3D sensing, LiDAR, in-cabin monitoring, robotics, and machine vision.

Design Angle (FWHM): 125° Design Angle (FW1/e²): 125° Angular Output Profile: Top Hat

The 125° Glass Diffuser is a high-quality homogenizer designed to span a defined angle from collimated light. It creates a top hat or cos^2 profile with steep slopes and high homogeneity along one dimension in angular space. Combining two diffusers generates a homogeneous rectangular distribution, making it ideal for high laser input powers. It uses low absorption glass or fused silica for optimized LIDT and provides line or rectangular shapes, steep slopes, high optical efficiency, wide angles, repeatability, no zero order, no hot spots, and no degradation under UV.

Transmission (%) at 300nm: ~10% Transmission (%) at 400nm: ~20% Transmission (%) at 500nm: ~25%

This product is a white glass diffuser sheet with a thickness of 1.25mm, designed for optical applications requiring controlled light transmission.

Diameter: 12.7mm Thickness Tolerance: ±0.2

Frosted diffusers are polished on one side and fine-ground on the other, suitable for applications requiring scattered light intensity with a Gaussian distribution. Union Optic can provide diffusers fine-ground with various grit numbers.