Home / Products / Laser Consumables And Accessories / Laser Protection Lens / F-theta Scan Lens

Share to:

F-theta Scan Lens

Used in Galvo scanning galvanometer systems to keep the spot diameter on the working plane as small and constant as possible. All of our lenses are manufactured using state-of-the-art laser optics.

Availability:

Quantity:



Inquire PDF Export

Product Description

Product Overview

The F-theta scanning lens is an optical component specially designed for laser scanning systems, especially in Galvo scanning galvanometer systems. Its main function is to focus the laser beam onto a plane, ensuring that the spot diameter is as small and constant as possible on that plane. The design characteristics of this lens enable it to maintain a consistent focus at different scanning positions, thereby improving processing accuracy and efficiency.

The "F-theta" name of the F-theta lens comes from its optical properties: under certain focal length conditions, the relationship between the beam shift and the lens incident angle (θ) is linear. This means that the position of the spot during scanning can be directly controlled by a simple electrical signal, thereby achieving fast and efficient laser processing.

The F-theta scanning lenses we provide are all manufactured using the most advanced laser optical technology, ensuring excellent image quality, low distortion and high durability. They are widely used in laser marking, cutting, engraving and other fields, and can meet the various industrial needs of customers.

Main Features

1. Optical design:

Specifically designed to produce a flat spot through the Galvo scanning galvanometer system to maintain the consistency of the spot on the focal plane.

2. Focal length and field of view:

Provides a variety of focal length options to adapt to different application needs and expand the processing range.

3. Low optical distortion:

Through high-precision optical design, image distortion is significantly reduced and the clarity of laser processing edges is ensured.

4. Excellent light transmittance:

Use high-quality optical materials, usually with >95% light transmittance, to improve laser transmission efficiency.

5. Excellent wavelength adaptability:

It can support a variety of laser wavelengths, such as 1064nm, 532nm and upcoming new wavelengths, to meet the needs of different laser applications.

6. Durability and stability:

Made of high-temperature and wear-resistant materials, it can operate stably in harsh environments and extend its service life.

Product Parameters

P/N	EFL(mm)	Scan Angle	Scan Field (mm)	Beam Diameter (mm)	Length (mm)	Working Distance (mm)	Spot um(1/e^2)	Diameter	Screw thread or lens diameter
FL-1064-70-100	100	25	70X70	10	50	119.8	19	88	M85X1
FL-1064-112-163	163	25	112X112	14	48	186.8	28	88	M85X1
FL-1064-140-210	210	25	140X140	14	52	246.6	31	88	M85X1
FL-1064-175-254	254	25	175X175	14	52	259.0	35	88	M85X1
FL-1064-210-330	330	25	210X210	14	52	380.5	42	88	M85X1
FL-1064-310-430	430	29	310X310	20	50	476.8	50	105	M85X1
FL-1064-330-580	580	25	330X330	20	58	645.5	80	120	M85X1

Advantages of F-theta Scan Lens

1. High processing precision:

Achieve small spot diameter and consistent focus, eliminating the need for excessive trimming in laser marking, cutting, engraving and other applications, improving work efficiency and finished product quality.

2. High-speed processing capability:

The optical design of the F-theta lens allows the laser beam to move quickly, which is suitable for mass production and rapid processing needs.

3. Multifunctional applications:

It can be widely used in different fields, including electronics, medical, aerospace, metal processing and artistic creation, to meet a variety of laser challenges.

4. Easy to integrate:

The design is flexible and easy to integrate with existing laser systems and equipment, making it easy for users to implement and maintain.

5. Technical support and services:

Usually equipped with comprehensive technical support to help customers solve problems encountered during installation, debugging and operation, and improve the equipment use experience.

6. Economic benefits:

Although the initial investment may be higher, long-term use can significantly reduce the total cost of ownership due to its high performance and durability.

F-theta scanning lenses are ideal for high-precision laser processing applications due to their advanced optical technology and strong applicability.

Application of F-theta Scan Lens

1. Laser marking

Precision marking: The F-theta scanning lens can provide a stable and uniform spot, making it possible to perform high-quality laser marking on different materials. By adjusting the laser parameters, detailed and clear identification can be achieved, including product serial numbers, logos, dates, etc.

Barcode and QR code printing: In the printing of barcodes and QR codes, the high resolution and low distortion of the lens ensure the readability and accuracy of these graphics. Suitable for tracking and management of various products.

2. Laser cutting

For cutting of materials such as paper, plastic, and metal: The design of the F-theta lens enables the laser beam to accurately cut a variety of materials at high speeds. Its high focusing ability enables fine cuts and smooth cutting edges, and is widely used in industries such as advertising, packaging, and casing.

Adapt to a variety of materials: Not only limited to common paper and plastic, the F-theta lens can also handle metals and other industrial materials, suitable for a variety of industry needs.

3. Laser engraving

High-precision engraving: The characteristics of the lens design enable it to perform high-precision engraving on the surfaces of different materials (such as wood, glass, leather, etc.). Whether it is a detailed pattern or a complex design, the F-theta lens can complete it with high resolution to meet the user's creative needs.

Personalized customization: In artistic creation and personalized products (such as customized gifts and souvenirs), the F-theta lens provides a wide range of application possibilities.

4. Micromachining

Suitable for processing electronic components and other precision industrial products: In the electronics industry and other high-precision manufacturing industries, the F-theta scanning lens is particularly suitable for micromachining. It can achieve extremely small-sized cutting, marking and engraving, and is very suitable for the manufacture of components such as circuit boards, connectors, sensors, etc.

Combination of high efficiency and high precision: Micromachining usually requires extremely high precision. The F-theta lens can maintain extremely consistent processing accuracy while running at high speed, improving production efficiency.

The F-theta scanning lens has demonstrated excellent performance in multiple fields such as laser marking, cutting, engraving and micromachining, and is suitable for a wide range of application needs. Whether in industrial production, artistic creation or high-tech product manufacturing, its excellent characteristics make it an indispensable tool.

Installation and Maintenance

1. Easy Installation

User-friendly Design: The structural design of F-theta scanning lenses usually takes into account user convenience, equipped with standardized interfaces and fixtures, making the installation process more intuitive.

Quick Installation and Debugging: Most F-theta lenses are designed with a series of mounting marks and docking bosses to ensure their correct positioning on the equipment. Users can quickly install the lens into the Galvo system, reducing downtime and speeding up production startup.

2. Maintenance Requirements

a. Regularly Clean the Lens Surface:

Avoid Dust and Contamination: Regular inspection and cleaning of the lens is key to ensuring optical performance. If dust, oil or other contaminants accumulate on the lens surface, it will seriously affect the transmission quality of the laser beam and lead to poor processing results.

Cleaning Method: Use professional optical cleaning fluid and soft dust-free cloth or lens paper to gently wipe the lens surface. Avoid using solvents with too high chemical content to avoid damaging the lens coating.

b. Calibration and Debugging:

Regular Calibration: After long-term use or replacement of the light source, the system needs to be calibrated to ensure the accuracy of the beam path and the stability of the imaging.

Monitoring performance: The processing accuracy and stability of the equipment should be checked regularly, and possible problems should be dealt with in a timely manner to ensure the normal operation of the system.

c. Environmental control:

Avoid high temperature and humid environment: The lens should be stored in an environment with suitable temperature and humidity to avoid high temperature or high humidity environment that has an adverse effect on optical performance.

d. Regularly check accessories:

Check connecting parts: Regularly check the connecting parts between the lens and the laser, reflector, etc. to ensure that there is no looseness and wear, and to ensure the stability of the overall system.

Through the above installation and maintenance measures, the F-theta scanning lens can continue to provide excellent optical performance throughout its service life, ensuring the efficiency and stability of the production process. At the same time, developing good maintenance habits will effectively extend the service life of the equipment and reduce the possibility of equipment failure.