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Collimating Lens for Fiber Laser Cutting Machine

Collimator lenses are widely used in fiber laser cutting machines/cutting heads. We provide collimating lenses of different specifications for common laser cutting heads, and supply special collimating lenses for Precitec, WSX, Raytools, Ospri and other brand cutting heads.

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Product Description

Function of Collimating Lens

1. Laser beam collimation:

Collimation lenses are used to collimate the divergent beam emitted by the laser source into a parallel beam. This is essential for improving the accuracy and effect of laser cutting.

2. Focused beam:

During the laser cutting process, collimation lenses can also help focus the laser beam to the focal point of the cutting head, thereby achieving high energy density cutting.

3. Improve cutting quality:

By optimizing the beam quality of the laser beam, collimation lenses can improve the clarity of the cutting edge and reduce the heat-affected zone, thereby improving the quality of the final cutting work.

Features of Collimating Lens

1. High transmittance:

Collimator lenses need to have extremely high transmittance to minimize light loss, so as to improve the efficiency of laser cutting.

2. Anti-reflection coating:

In order to further improve transmittance and reduce light loss, many collimator lenses are coated with anti-reflection coatings.

3. Excellent optical performance:

Collimator lenses need to have good optical performance, including surface flatness and optical uniformity, to ensure the quality of the laser beam.

4. High temperature and wear resistance:

During the fiber laser cutting process, the lens may be subjected to high temperature and laser energy impact, so the material needs to have excellent heat resistance and wear resistance.

Technical parameters

Wavelength range: Applicable to 1064nm, 1070nm or other specific wavelengths

Transmittance: ≥99% (specific values vary according to manufacturers and coating types)

Surface flatness: λ/10 (according to optical requirements)

Transmittance: Excellent, specific values depend on coating conditions

Material type: optical glass, germanium, zinc selenide, etc.

Dimensions: Customized according to customer needs (diameter, thickness)

Anti-reflective coating: double-sided or single-sided anti-reflective coating

Material Selection

1. Optical glass:

For general applications, with good light transmittance and stability.

2. Crystal materials (such as germanium, zinc selenide, etc.):

For higher performance applications, such materials are usually used in infrared laser systems.

3. AR coating:

Anti-reflective coating generally uses plasma coating technology to treat the lens to improve light transmittance.

Selection of Collimating Lens

Things to consider when choosing a collimating lens:

1. Laser wavelength: Make sure the selected lens is suitable for a laser light source with a specific wavelength (such as 1064nm, 1070nm, etc.).

2. Beam quality: Choose a high-performance collimating lens based on the output beam quality of the fiber laser cutting machine.

3. Durability: Choose a material that is resistant to high temperatures and scratches to ensure that the lens maintains good performance during the laser cutting process.

4. Brand and reputation: Make sure to buy products from a trusted brand to ensure optical quality and performance stability.

Maintenance and upkeep

1. Cleaning method:

Use dust-free lens cleaning cloth and optical cleaning fluid to avoid scratches.

Check the lens surface regularly to remove dust and stains.

2. Storage conditions:

Store in a dry, cool place, away from direct sunlight and high temperature environment.

3. Damage inspection:

Check the lens regularly for scratches, cracks, etc., and replace it in time if damage is found.

The collimating lens of the fiber laser cutting machine is crucial to the laser quality and cutting effect during the cutting process. By choosing the right lens and regular maintenance, the efficiency of laser cutting and the quality of your cut work can be significantly improved. Correct selection and maintenance can not only extend the service life of the equipment, but also effectively reduce the failure rate during the production process.