Features of the Module
- High precision focus across the entire field of view
- Uniform spot size over a large scan area
- Low distortion for accurate scanning
- Durable construction with anti-reflective coatings
- Optimized for high-power laser applications
Description of the Module The F-Theta Lens is an essential optical module designed for precision laser scanning applications. Unlike standard focusing lenses, the F-Theta lens maintains a constant spot size and focus across the entire field of view, ensuring that the laser beam remains focused regardless of its position within the scan area. This unique characteristic is achieved by the lens’s design, which creates a linear relationship between the scanning angle (theta) and the position on the image plane, hence the name “F-Theta.”
The F-Theta lens is widely used in laser marking, engraving, and cutting systems where high precision and uniformity are crucial. Its ability to deliver consistent beam focus over a large area makes it indispensable in applications that require high-speed processing with minimal distortion. The lenses are often constructed using high-quality optical glass or fused silica, with advanced coatings that enhance transmission and durability, especially in high-power laser environments.
General Specification, Manufacturing Tolerances, and Limitations
| Specification | Detail |
|---|---|
| Material | Fused silica, optical glass |
| Focal Length Range | 100 mm to 400 mm |
| Wavelength Compatibility | 355 nm, 532 nm, 1064 nm (other wavelengths available) |
| Surface Quality | 20-10 Scratch-Dig |
| Transmission | > 99% with AR coatings |
| Distortion | < 1% across the scan area |
| Spot Size | Varies by focal length and scan area |
| Coating | Anti-reflective, custom coatings available |
What is the Module Composed of? And What’s the Classification?
- High-precision optical elements
- Durable mechanical housing
- Anti-reflective coatings
- Protective elements for high-power laser use
Classification
- UV F-Theta Lenses: Designed for UV laser applications, typically around 355 nm.
- Visible F-Theta Lenses: Optimized for lasers operating at 532 nm.
- Infrared F-Theta Lenses: Suitable for IR lasers, commonly at 1064 nm.
- Multi-wavelength F-Theta Lenses: Capable of handling multiple wavelengths for versatile applications.
What’s the Key Components?
- Optical Glass Elements: Precisely shaped and coated lenses that ensure high accuracy and minimal distortion.
- Protective Coatings: Enhance durability and performance in high-power laser applications.
- Mechanical Housing: Ensures the stability and alignment of the optical components.
What’s the Critical Specs?
- Focal length accuracy, ensuring precise beam placement.
- Low distortion, critical for accurate scanning across the entire field.
- High transmission rates, ensuring efficient laser power delivery.
How to Evaluate the Performance? Performance of an F-Theta Lens can be evaluated through several key metrics:
- Spot Size Consistency: Measuring the uniformity of the laser spot across the scan area.
- Distortion Testing: Assessing the deviation from the ideal scanning pattern.
- Transmission Efficiency: Evaluating the percentage of laser power transmitted through the lens.
- Thermal Stability: Ensuring the lens maintains performance under high-power laser operation.
How to Select the Module Selecting an F-Theta Lens should be based on the specific laser wavelength, desired scan area, and application requirements. Consideration of the focal length and spot size is crucial, as these will impact the precision and efficiency of the scanning system. The lens should also be compatible with the power levels and environmental conditions of the intended application.
What’s the Application?
- Laser marking and engraving
- Precision cutting systems
- High-speed laser scanning
- 3D printing with laser systems
- Micromachining applications
Why Choose Bote Optics Bote Optics offers a range of high-performance F-Theta Lenses designed to meet the exacting demands of modern laser scanning systems. Our lenses are manufactured using state-of-the-art technology and undergo rigorous quality control to ensure optimal performance and durability. With a commitment to innovation and precision, Bote Optics provides solutions that enhance the efficiency and accuracy of your laser systems. Choose Bote Optics for your F-Theta lens needs and experience unparalleled optical quality and reliability.