Industry News

At JGZOE, we provide a full line of 10.6 μm F-Theta lenses designed for high-accuracy CO₂ laser marking, engraving, cutting, and coding applications. Our lenses deliver stable performance, consistent spot quality, and excellent field flatness—ideal for demanding industrial environments.

In modern laser technology, the Beam Expander—also known as a laser beam expander or optical beam expander—has quietly become an essential component in many high-precision systems. At JGZOE, we design and manufacture a wide range of optical components, and Beam Expanders are among the most important tools for improving beam quality, stability, and processing performance. If you're working with laser marking, cutting, welding, semiconductor processing, or measurement systems, understanding how a Beam Expander works can significantly improve your overall results.

Working Principle：The telecentric scanning lens designed by JGZOE combine the flat-field focus capabilities of the F-Theta design with telecentric optical correction. This can ensures the laser beam strikes the workpiece surface perpendicularly throughout the entire scan range, minimizing distortion, focus shift, and spot deformation. OF course ，this effectively delivers consistent mark depth, shape, and quality from the center to the edge of the work area.

In the world of laser processing, there is a name you may not have noticed, but it is an indispensable "invisible hero" of the entire industry—the F-theta lens. Don't underestimate this small lens; it is the most critical "brain" in laser processing equipment. Today, let's explore and see how it silently promotes the progress of the entire industry behind the scenes.

Among various optical components used in laser systems, the Telecentric Lens and the F-Theta Lens are two common types with distinctly different functions. The Telecentric Lens is widely used in high-precision visual measurement and inspection, while the F-Theta Lens serves as a core component in laser marking and processing systems. Each plays a vital role in industrial production, fulfilling its own mission and providing strong support that is indispensable.

Introduction

In laser processing systems, the choice of optical components directly affects accuracy, efficiency, and overall performance. Two commonly used optics are the F-theta lens and the standard focusing lens. Although both are designed to focus laser beams, they serve different purposes and are optimized for different applications.

Understanding the differences between these lenses can help manufacturers, integrators, and engineers select the right solution for their laser systems.

In modern laser processing systems, F-theta lenses play a critical role in determining marking accuracy, processing uniformity, and overall system performance. However, as the demand for larger working fields continues to grow, a common optical challenge becomes more significant—edge distortion.

So why does edge distortion happen in large field F-theta lenses, and how can it be controlled?

In modern laser processing systems, maintaining stable laser spot quality across a large scanning field is one of the most critical factors affecting processing accuracy, consistency, and yield. As applications such as laser marking, engraving, cutting, and micro-machining continue to expand, especially in large-format processing, laser spot instability becomes a key limitation that engineers must solve.

This article explains the main causes of laser spot instability in large field scanning and provides practical methods to improve performance in real industrial systems.

In modern laser processing systems, F-theta lenses are designed to provide a flat-field scanning response, where the output position on the work surface is proportional to the input scanning angle.

However, as laser systems move toward larger working fields and higher processing efficiency, edge distortion becomes increasingly noticeable. This is a common challenge in high-power and high-precision laser applications.

So why does this happen—and what causes it?

With the rapid growth of industrial additive manufacturing, laser 3D printing systems are increasingly used in aerospace, automotive, medical devices, and advanced manufacturing. At the core of these systems is the laser scanning system, which requires high-precision laser optics to ensure stable beam control and accurate layer deposition.

As a professional laser optics manufacturer, we provide high-quality optical components designed specifically for laser 3D printing scanning systems and high-power laser applications.