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Focusing Lens D20-30mm Fused Silica Laser Focus Collimating Lens For Fiber Laser Engraving Machines

Focusing Lens D20-30mm Fused Silica Laser Focus Collimating Lens For Fiber Laser Engraving Machines

Precio habitual S/. 366.95 PEN
Precio habitual S/. 366.95 PEN Precio de oferta S/. 366.95 PEN
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Model Number
Focusing Lens D20-30mm Fused Silica Laser Focus Collimating Lens For Fiber Laser Engraving Machines
Products Description
10.6μm CVD ZnSe CO2 Laser Focus Lens Infrared Lenses For Laser Cutting Engraving System
Co2 Laser Focusing Lens is an indispensable part of the CO2 laser processing systems and other kinds of light converging applications. CVD Znse focus lenses is the prior choice for high power CO2 laser systems due to its particularly low absorption for the 10.6μm laser beam.

YONGLI selects CVD (chemically vapor deposited) ZnSe grown in America, which features extremely low bulk losses induced by absorption and scatter, exceptional homogeneity, high thermal shock durability, and stability under harsh operating conditions.

The relatively high refractive index of Znse Selenide implies that anti-reflection coatings are crucial for ZnSe lenses, correspondingly, our AR coating ensures a high damaging threshold, high durability, and high abrasion-resistance, with an excellent transmittance of T≥99.5%@10.6mm.
Technical Parameters
Focal Length(mm)
Edge Thickness(mm)
Product Details
ZnSe lense is widely used in CO2 laser cutting ,marking,drilling,other laser system of industrial, which has low absorption and withstand high laser power.The coating layer of ZnSe lense is solid.The trasmission of it can reach 67 % in 10.6 micron.

We do the optimization design according to diffration and aberration and then show the products that have actual focus spot size in the same focal length. We can produce the products upon your requirement.

We take the import ZnSe which is yellow transparent multi-crystal to be coating. Its trasmittance is 0.5-15μm. It is made in chemical vapor deposition method,which have little inclusions and low obsorption. Its has feature of low scatter loss. It is the best substrate that can make IR lenses to use in CO2 high power laser system because of low absorption in 10.6μm.
YONGLI powerful focus lenses are manufactured from premium zinc selenium(Znse) via chemical vapor deposition for superior optical properties.

* HIGH TRANSMITTANCE: Both sides of each lens are covered with strongly anti-reflective coatings to achieve at least 99.5% transmittance rate for infrared light at a wavelength of 10.6 microns.
High Quality OEM Optical CVD Znse CO2 Laser Focus Lens
* LASTING DURABILITY: Our laser engraver focus lenses' double-sided coating process also ensures outstanding scratch resistance for longer service life.
* WIDE COMPATIBILITY: This CVD ZNSE laser focus lens fits YONGLI 40W-200W CO2 laser engravers. Please check the focal lens diameter in your machine’s manual before purchasing.

CO2 Laser Engraving and Cutting Machine Focus Lens

* EASY TO USE: The plano-convex shape of YONGLI's laser engraver focal lens lets you install it easily and correctly onto your machine in the proper orientation. Detailed cleaning instructions also help you take proper care of your lens.
• The stability of focus position strengthened, the cutting & engraving speed of some applications improved, and the ability for reflected light enhanced;
The lens consist in many advantages such as precise focus, thin-film coating anti wiping, higher luminous flux, etc. For which materially improves your work efficiency.

CO2 laser cutter lens ZnSe Lens Laser Focus Lens Feature

• Stable focus spot, better effect in cutting and engraving, bearable for high power density, and strong thin - film coating against peeling off and durable for wiping;
• Double-side coated anti-reflection coating, the light transmission of the parts increased by cylindrical surface polishing, reduction or elimination on stray light of the optical system;
• More bearable for wiping, longer life span as well as better process to radioactive coating.
Product Manufacturing Process
OPTICAL DESIGN Full range of optical lens design and producing, lens customization services, customer optic electronic products supporting the design, producing, systems integration services.
OPTICAL PROCESSING 1.Machinable lenses type Plane,spherical surface,spherical cover, reflector, aspheric surface, diffraction surface, free-form surface,etc. 2.Optics processing Material Crystal (Ge ZnSe GaAs Si Fluoride chalcogenideetc)Plastic(PMMA,PC)Metal( Cu,Al)glass/fused silica Optical glass

High end coating machine, mature coating process ensures product quality.
YONGLI always invests the most reliable measuring equipment to strengthen our quality control capability. Through the years, YONGLI employs quantitative measuring devices for every single production Phase in order to strictly control our products quality no matter components or system level job.
Co2 Laser Focus Lens for all brands of laser cutter & engraver
Widely used in the following brands CO2 laser engraving & cutting machines:Redsail, Kaitian, Yueming, Goldenlaser, Senfeng, Shenhui, York Laser, Hanma Laser, Ruijie, and Bodor etc.
Focal Length Measurement and Cleaning Procedure
How to adjust the focal length
Put a piece of harder paper under the laser head, adjust the height between the laser head and the paper by the focal length ruler, and then press the 'Laser' button on the panel to make marks. Compare the sizes of the marks made in different height and find the minimum sized mark,and then the appropriate height can be determined as the focal length of the machine.The following pictures shows an example. You may see that the mark made in the height of 8 mm is the minimal. Then we know the focal length is 8 mm. In the future, materials with different thickness should be cut in the height of 8 mm.

1. Before installing the lens, please confirm the diameter and focal length.
2. The focal length is the distance between the lens and the cutting/engraves material.
3. Suggestion: convex upward, the plane side faces to material.


Company Profile
                                      The Largest Laser Manufacturer in China                               
Yongli Laser Technology Co.,ltd Was Founded in 2005, Yongli is the No.1 Co2 & Fiber Laser Parts & Machine Manufacturer in China, with 69 Core Technology and Independent Intellectual Property Rights. We Are Committed to the Development and Manufacture of Laser Machine Parts & accessories (co2 Laser Tube, Power Supply, Lens&mirrors, Power Meter, Water Chiller and Control System, Fiber Laser Source, and Fiber Laser Head) and CNC Laser Machines (Laser Marking Machines, Laser Engraving Machines, Laser Cleaning Machines, and Laser Welding Machines). We Are Always Providing Customers with High-quality Products, Competitive Prices, and Excellent Services. Whether You’re a Professional Supplier, a Large Material Processing Enterprise, or an Inspiring Workshop, We Understand Your Need for Pin-point Precision with a Pleasing Price Tag. Our Machines and Parts Come Equipped for Every Need — from Desktop Engravers to Large Cutters, Fiber Laser Markers and Even 100w for Small Businesses.
               YongLi Laser- Products and solutions for laser professionals.                 
Yongli Laser Technology is a Leading Manufacturer of Co2 Lasers & Fiber Lasers Machine&parts in China. from Our Base in Changchun, We Supply a Range of Advanced Products for Laser Solutions for Customers Throughout the World. All Yongli Laser Products Are Designed and Produced On-site Ensuring Transparency and Quality Control Throughout the Manufacturing Process. with In-house Cnc Machining Capabilities and a Roster of Highly Skilled Engineers, Our Facility is Equipped to Produce Equipment of Remarkable Performance and Quality. Yongli Laser Technology Has the Knowledge and Experience to Provide Expert Advice on Any Laser Application. Combined with Comprehensive After-sales Support Yongli Can Provide an Unrivaled Solution to Your Needs. Solving the Most Difficult Manufacturing Challenges with Thought Leadership and Innovative Laser Systems Solutions. Our Experts Engage Customers on over 2,500 Projects Per Year.
                     Certification is commitment to quality and safety                                 
Product certification acts as an indicator of that product’s safety, reliability, and quality, Product certification is one of our best tools to tell the quality from the questionable, or reliable from the risky. YongLi Laser Technology has obtained 50 patents, 6 software copyrights, and has successfully passed European CE certification, RoHS certification, FCC certification, REACH certification, MSDS certification, US Food and Drug Administration Certification, TUV Rheinland certification, Swiss SGS testing certification, and ISO9001 quality management system certification. YongLi Laser Technology is a member of Alibaba Group’s TrustPass VIP member and Golden & Assessed Supplier. The business covers more than 70 cities in China, as well as nearly 80 countries and regions such as Southeast Asia, Europe, America, Oceania and Africa, and is highly recognized by domestic and global customers.

                  Pre-sales support. Build customers value with trustworthy              
All laser products with comprehensive pre-sales support services that enable you an easy and resourceful journey with YongLi Laser. All we want is to give you a delightful experience.
Extensive coverage of 30+ domestic offices and institutions to create a 2-hour service arrival. Combination of online live chat and other social media video chat to meet customer needs in multiple directions and at multiple levels. Multi-batch customer return visits, timely discovery of problems to solve and improve.
Customer Need Focus
Tell us about your business needs or any questions about CNC laser machines. We strive to put 100% effort into helping you find the most suitable metal laser solution.
Free Consultation
Free consultation and laser market analysis are provided to help you commence and get returns with our high quality lasers.

Customized Solutions
Customized metal laser solutions will be designed to meet diverse needs, together with free drawings and free trial running. Lifetime technical support is offered for all YongLi Laser laser products.

Showroom Visit
You are always welcomed to visit our factory and office in China, or visit our online 3D VR showroom and experience a fast and efficient way to connect with us.

                       We guarantee the most professional after-sales service.                  
Less than 5 MINS QUICK RESPONSE. Within 24 HOURS SOLUTION PROVIDED. Proud to be No.1 in customer satisfaction for our guaranteed after-sales service.
We guarantee the profitability of our laser products.
The laser equipment we designed is highly efficient and durable, which can bring benefits and is easy to oversell.
You can always contact our company's specialized after-sales service staff. Our team will professionally answer all questions about the equipment at any time. No need to worry about anything, we are always by your side.
2015-Serigrafia Sign Futuretextil , Sao Paulo, Brasil
2016-EXPO PUBLICITAS, Mexico City, Mexico
2017-LASER PHOTONICS, Munich, Germany
2017-Sign Africa Expo Durban, Cape Town, South Africa
2018-Digi Sign,Cairo Egypt
2018-Media Expo, Mumbai, India
2018-Print & Signage Expo, Berlin, Germany
2019-Media Expo Mumbai, India
2019-FESPA , Sao Paulo, Brasil
2019-ITMA , Bienvenido, Spain
2022-LASER World of PHOTONICS, Messe München, Germany
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