915nm F-Theta scan lens is a high-precision scanning and focusing optical component specifically designed for 915nm wavelength lasers, widely used in laser material processing applications. This lens features a flat-field scanning design that ensures a consistent and uniform focused spot across the entire scan plane, fundamentally solving the edge blurring issue caused by field curvature in conventional lenses.

Key Advantages

This lens series is optimized for the 915nm wavelength, utilizing high-quality fused silica optical materials with excellent thermal stability and high laser damage threshold. Standard product focal lengths range from 100mm to 420mm, with scan fields from 70×70mm to 250×250mm to accommodate various processing requirements. All products feature the standard M85×1 mounting thread for compatibility with mainstream galvo scanning systems.

Typical Applications

915nm F-Theta scan lenses are widely used in new energy battery manufacturing, consumer electronics precision processing, and photovoltaic module production. Specific applications include: lithium battery tab welding and cutting, solar cell scribing, precision marking, laser cleaning, and 3D printing/additive manufacturing. The 915nm wavelength offers a balance of good metal absorption and moderate penetration depth, making it particularly suitable for precision processing of highly reflective materials such as copper and aluminum.

Technical Features

The scan angle typically ranges from ±14° to ±25°, with excellent spot roundness and focal plane consistency across the entire scan field. Select achromatic models also enable confocal imaging between the 915nm processing laser and 633nm indicator light/CCD observation light, supporting coaxial vision alignment for high-precision automated processing applications.