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CCRQ Optics Co.,Ltd

 6 month year

Product details

Laser focus lens is a critical optical component that shapes and directs laser beam for precise energy delivery in industrial, medical and creative applications.

CO2 laser focus lens is suitable for cutting and engraving and responsible for concentrating the 10.6um wavelength infrared light into a high-energy density light spot. The selection mainly depends on three core parmeters, material, focal length and aperture

co2 laser can not pass through oridnary glass, therefore, infrared materials must be choose Znse window or Znse Lens

Znse Meniscus lens or Znse plano convex lens has a transmittance of over 99% at 106.um wavelength and can also transmit visible light( which is convenient for red light positioning) making it suitable for most cutting/engraving scenarios.

GaAs lens :High hardness, resistant to splashing, but opaque( not transparent to visible light), mostly used in harsh environment

1.Focal Length determines the size of the light and the depth of field

The focal length is the key factor in the selection process, as it determines the size of the light spot and the depth of field( the range of cutting depth

*Short focal length:(25-50mm): the light spot is small and the engery is concentrated, suitable for precise marking and thin plate cutting ,however, the depth of the field is short and extremely high accuracy in the flatness of the materil is required

*Middle focal length:(63-100mm): General purpose option, balancing both light spot quality and a certain depth of field. suitble for acrylic, wood board engraving and medium-thickness cutting

*Long focal length:(125-129mm): the light spot slightly larger, but the depth of field is long, which is suitable for thick plate cutting( such as 20mm+acrylic) ensuring consistent quality at the top and bottom of the cut

2. Size: match with power

the aperture size should be larger than diameter of the incident light beam to prevent damaging the frame

low power(<100w) commonly choose 18-20mm diameter

High power(>200w), requires Dia25mm or larger to disperse the heat load

Znse Plano convex lens VS Znse Meniscus Lens

According shape there have two types, one is Znse plano convex lens, another is Znse Meniscus lens, both are the most common types in CO2 laser systems, although their material is the same, but optical structures, focusing performance and application scenarios are vastly different.

Dimension	Znse Plano convex lens (PCX)	Znse curved lens( Meniscus)
Structural characteristics	one side is flat, while the other is convex( like a flat-bottomed magnifying glass)	one side is concave, while the other is convex( like a crescent moon)
Focus Principle	One sided refraction, simple and crude	double refraction, capable of correcting spherical aberration
Spot quality	the edge aberration is significant, and light spot is slightly spread out	the light spot is rounder and the engergy is more concentrated
Installation direction	the convex surface must face the incident light	the concave surface faces the incident light( otherwise it would become divergent)
Cost	low（easy to manufacture)	High( High processing difficulty)

Scenario-based selection suggestions

Znse flat convex lens ( pcx) preferably cheaper or with a long focal length

Application scenarios: Budget-sensitive, long focal length(>100mm) thick plate cutting, low power(<100w) engraving

Advantage: simple structure, not prone to being installed incorrectly, and low price.

Disadvantage: the edge light spots have slightly poorer quality and are not suitble for extremely precise and detailed processing

Znse Meniscus lens for precision or high power

Applicable scenarios: High power cutting(>500w), precise marking, high-speed scanning galvanometer system

Advantages: Minimizes spherical aberration, has extremely high focal energy density, and results in a smoother cutting surface

Disadvantages: the price is high, and it's very prone to being installed incorrectly ( incorrect installation will cause the beam to spread and damge the equipment)

Usage Restrctions

Don't install wrongly:Reversing the parabolic lens is a fatal mistak

Remember the rule: the flat convex surface should face the light source, while the curved concave surfaces should face the light source.

Specifications

Substrate	PVD Znse and CVD Znse as choice
Shape	Plano convex or Meniscus
Diameter	12mm 15mm 18mm 20mm 25mm, 38.1mm optional
Focal length	38.1mm, 50.8mm, 63.5mm, 76.2mm, 101.6mm ,127mm optional
Thickness	2mm, 2.4mm, 2.6mm, 3mm
Transmission	>99.5% at 10.6um
Power	100w-500w as choice
CA	>90%
S/D	20/10
Coating	both surfaces solided AR coating

Our company specializing in processing, production and sales of precision optical components, we specialize in optical component including Sapphire Windows, Spherical Lens, Optical Mirrors Optical Windows, Optical Prisms, Filters and Lasers.

We have a skilled optical engineer team which is expertised in processing optical components for over 10 years and have a completed production line of cutting, milling, grinding, polishing, coating, spray paint, and assembly.

The superior quality of product and our best service enable us to cooperate with more and more customers domestically and overseas.

Our product categories are listed as follows.

1.Laser optics, such as Laser focus lens, laser mirror applicable to laser cutting and engraving machines ect

2.Infrared optics, such as Sapphire Window, CaF2 Window, BaF2 Window, MgF2 Window, ZnS window, Znse window, Silicon window, IRG205, IRG206, IRG207 ect

3.Optical glass components, such as Spherical Lens, achromatic lenses doublet, ball lens, collimator lens, corner cube prism, optical lens, right angle prism ,ATR prism ect

4.Optical Mirrors, Dielectric Mirror, Spherical Concave or Convex Mirror, Off- Axis Parabolic Mirrors coating including Silver, Gold, Aluminum, Cooper, Nickel etc.

Besides, we also specialized in manufacturing large size prism, such as Periscope prism, Beamsplitter(Cube, Plate).

We have advanced coating machines and related equipment such as ultrasonic cleaning devices. our technical team is capable of performing various types of coating processes to meet different demand, including AR coating, HR coating, long pass coating, short pass coating , bandpass coating, anti-laser coating, waterproof coating, metal coating and conductive coating

In order to ensure highest standard quality of optical components, our company equipped with advanced testing equipment like ZYGO three-dimensional optical profilometer, laser interferometer, spectrophotometer UV-3600 and video measuring machines

The survice purpose of our company is the principle based on honesty, attention to quality, the pursuit of excellence, share value, we are willing to become your best suppliers of optical components in China.

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CCRQ Optics Co.,Ltd

 Audited supplier

6 month

Address: Changchun, China

Main Product: Sapphire window , Spherical Lens, Optical mirror, Optical Prism, CaF2 window, Fused Silica Window

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