Features of the Module
- High precision focusing for laser scanning applications
- Optimal transmission across a wide wavelength range
- Customizable focal lengths to suit specific applications
- Superior thermal stability for consistent performance
- Durable construction for extended longevity
- Low aberration design for accurate beam shaping and steering
Description of the Module The scanning lens, also known as an F-theta lens, is an advanced optical module designed to focus laser beams accurately across a flat field during high-speed scanning processes. These lenses are integral in applications like laser marking, engraving, and cutting, where maintaining a consistent focal point across the entire working area is critical. The F-theta lens operates by ensuring that the laser beam remains in focus as it moves across the field, providing uniform spot size and energy distribution. Bote Optics’ scanning lenses are meticulously engineered to deliver exceptional precision and reliability, making them ideal for use in cutting-edge laser systems.
General Specification, Manufacturing Tolerances, and Limitations
| Specification | Detail |
|---|---|
| Focal Length | 100 mm, 160 mm, 254 mm, 420 mm (custom options available) |
| Wavelength Range | 355 nm, 532 nm, 1064 nm, 10.6 µm |
| Lens Material | Fused silica, ZnSe, BK7, or custom materials |
| Coatings | AR coating, DLC, UV protection |
| Transmission Efficiency | > 99% |
| Spot Size | As low as 10 µm (depending on focal length and wavelength) |
| Field Size | Up to 300 x 300 mm |
| Surface Quality | 20/10 scratch-dig or better |
| Surface Flatness | λ/10 at 633 nm |
| Operating Temperature | -20°C to +80°C |
| Tolerance on Dimensions | ±0.05 mm |
What is the Module Composed of?
- High-grade optical glass or fused silica for primary lens elements
- Anti-reflective and protective coatings to enhance performance and durability
- Protective windows to shield the lens from environmental contaminants
Classification of Scanning Lenses
- By focal length: Short, medium, and long focal lengths for different scanning distances
- By wavelength compatibility: UV, visible, near-infrared, and mid-infrared scanning lenses
- By application: Laser marking, cutting, engraving, and 3D printing
Key Components The scanning lens module includes several critical components:
- The primary focusing lens, responsible for directing and shaping the laser beam
- Protective windows that prevent dust and debris from affecting the lens performance
- Coatings that enhance transmission efficiency and protect the lens surface
Critical Specs Critical specifications include the focal length, which determines the working distance; the wavelength range, which must match the laser source; and the transmission efficiency, which impacts the laser’s effectiveness. Surface quality and flatness are also crucial for maintaining beam accuracy and minimizing distortion.
Performance Evaluation Methodology The performance of a scanning lens can be evaluated by assessing the spot size consistency, focal accuracy, and transmission efficiency across the entire field. Key methods include:
- Testing for uniform spot size across the scan area to ensure consistent performance
- Measuring transmission efficiency to confirm optimal energy delivery to the target
- Verifying thermal stability under operational conditions to ensure consistent focus and accuracy
Module Selection Criteria When selecting a scanning lens, it is essential to consider the specific requirements of your application, such as the laser wavelength, desired field size, and required focal length. The material of the target surface and the precision needed for the task should also influence your choice. Bote Optics offers a range of customizable scanning lenses designed to meet various industrial and scientific needs, ensuring optimal performance and durability.
Applications
- Laser marking and engraving
- Laser cutting and welding
- 3D printing and additive manufacturing
- Optical scanning and inspection systems
- Precision micromachining
Why Choose Bote Optics Bote Optics is committed to delivering high-performance scanning lenses that meet the stringent demands of modern laser processing applications. Our lenses are crafted from the finest materials and undergo strict quality control processes to ensure exceptional precision and reliability. With advanced design capabilities and customizable options, Bote Optics is the preferred partner for professionals seeking the best optical solutions. Our dedication to innovation and quality ensures that each lens delivers unparalleled performance, enhancing the capabilities of your laser systems.