TEN-HIGH Cu Reflective Lens CO2 vs TEN-HIGH Diameter 12mm Focal Lens: Spec Comparison
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You are comparing the ten high cu reflective lens co2 vs diameter 12mm focal lens for your CO2 laser setup. Both components are essential for directing the laser beam, but they serve different roles in the optical path. The first item is a focusing lens made of zinc selenide with a specific focal length. The second is a reflective mirror made of gold-plated copper. Understanding their distinct materials and shapes helps you choose the right part for maintenance or upgrades.
Key differences
| Aspect | TEN-HIGH 12mm ZnSe CO2 Focal Lens | TEN-HIGH 30mm Gold-Plated Copper CO2 Mirrors |
|---|---|---|
| Form Factor | Plano-convex lens | Plane mirror |
| Material | Zinc Selenide (ZnSe) | Gold-Plated Oxygen-Free Copper |
| Diameter | 12mm | 30mm |
| Focal Length | 76.2mm | Not listed |
| Transmittance/Reflectance | High transmittance | >99.9% reflectance |
Which one should you choose?
Choose TEN-HIGH 12mm ZnSe CO2 Focal Lens if
- You need to focus the laser beam onto the material for engraving or cutting.
- Your machine requires a 12mm lens with a 76.2mm focal length.
- You are replacing a worn zinc selenide focusing element.
Choose TEN-HIGH 30mm Gold-Plated Copper CO2 Mirrors if
- You need to direct the laser beam within the optical path.
- Your system uses 30mm mirrors for high-power applications up to 5000W.
- You require gold-plated copper mirrors for superior heat resistance and reflectivity.
Verdict: Choose the 12mm ZnSe lens if you need to focus the beam for precise marking or cutting. Select the gold-plated copper mirror if you need to reflect the beam within the machine optics. Both parts are designed for CO2 lasers but perform fundamentally different tasks.
Optical Path Component Specs
Laser Type
Both products are designed specifically for CO2 laser systems. The TEN-HIGH 12mm ZnSe Focal Lens is listed with CO2 as its laser type attribute. Similarly, the TEN-HIGH Cu Reflective Lens is also designated for CO2 applications. This confirms that both components are compatible with the same class of laser machinery. You do not need to worry about mismatched laser technologies when choosing between these two items for your setup. They share the same fundamental operational environment.
Material Composition
The materials differ significantly based on their function. The TEN-HIGH 12mm ZnSe Focal Lens uses Zinc Selenide with superior transmittance materials and double-sided solid coating. This plano-convex shape is chosen for engraving quality. In contrast, the TEN-HIGH Cu Reflective Lens is made from Gold-Plated Oxygen-Free Copper. This material choice supports high temperature resistance and excellent optical properties for reflective surfaces. The focal lens relies on ZnSe for transmission, while the mirror uses copper for reflection.
Power Compatibility
The TEN-HIGH Cu Reflective Lens specifies a compatible power range of 40W to 5000W. This wide range indicates suitability for high-power industrial or professional machines. The TEN-HIGH 12mm ZnSe Focal Lens does not list a specific wattage range in its provided data. While it mentions high work efficiency, the absence of explicit power limits makes direct comparison difficult. You should verify the focal lens specifications separately if your machine operates at very high wattages near the 5000W upper limit of the mirror.
Dimensions and Form
Size specifications are clearly defined for both items. The TEN-HIGH 12mm ZnSe Focal Lens has a diameter of 12mm (0.47 inch) and a focal length of 76.2mm (3 inches). It weighs approximately 3.53 ounces. The TEN-HIGH Cu Reflective Lens has a diameter of 30mm (1.18 inch) and a thickness of 3mm (0.19 inch). It weighs 0.3KG. The mirror is physically larger in diameter but the focal lens has a distinct focal length parameter crucial for beam focusing.
Optical Performance
Performance metrics highlight the distinct roles of each component. The TEN-HIGH Cu Reflective Lens boasts a transmittance of greater than 99.9%, which is technically reflectance in the context of mirrors, ensuring minimal laser loss. It also features superb coating art for precision slicing and polishing. The TEN-HIGH 12mm ZnSe Focal Lens emphasizes high transmittance through exquisite coating to reduce laser loss. Both products prioritize high efficiency and long working life through precision manufacturing processes.
Choose based on your optical path needs
You need to focus the beam for engraving
This ZnSe focal lens has a 76.2mm focal length and 12mm diameter. It uses a plano-convex shape to concentrate the laser. The high transmittance reduces energy loss. This design improves engraving quality and efficiency for your CO2 machine.
You need to direct the beam path
This gold-plated copper mirror reflects the laser beam. It has a 30mm diameter and supports power up to 5000W. The plane shape directs light without focusing. It offers high temperature resistance and excellent optical properties for your optical path.
You want high durability and precision
The focal lens features double-sided solid coating for wiping resistance. It has a long working life due to high temperature and laser resistance. The precision slicing and polishing ensure excellent substrate quality. This makes it reliable for consistent daily use.
You need a complete set of mirrors
This package includes three mirrors instead of a single unit. The gold-plated copper material ensures high reflectivity. It is compatible with various CO2 laser powers. You get multiple components to set up or replace your entire reflective optical path at once.
The products compared
TEN-HIGH 12mm ZnSe CO2 Focal Lens
Best for: Standard CO2 laser cutting and engraving
- Laser Type
- CO2
- Weight
- 3.53 ounces
View on Amazon: TEN-HIGH 12mm ZnSe CO2 Focal Lens Affiliate link
This TEN-HIGH lens uses ZnSe material for CO2 laser systems. It features a 12mm diameter and a 76.2mm focal length. The plano-convex shape helps improve engraving quality. Double-sided solid coating provides wiping resistance and long working life. High transmittance reduces laser loss for better efficiency. It weighs 3.53 ounces. You should choose this if you need a standard focal length for cutting or engraving tasks.
Pros
- 12mm diameter with 76.2mm focal length
- Superior transmittance ZnSe material
- Plano-convex shape for better engraving quality
- Double-sided solid coating for durability
Cons
- Limited to CO2 laser types only
- Fixed 76.2mm focal length not adjustable
- No included protective case or mount
Good fit if
- You need a 76.2mm focal length for CO2 lasers
- You want high transmittance for efficient cutting
- You require a durable ZnSe lens
Skip if
- You use fiber or diode laser systems
- You need a different focal length like 50mm
- You prefer gold-plated reflective lenses
Verdict: TEN-HIGH 12mm 76.2mm Focal CO2 Lens is a solid choice for CO2 laser users needing a 76.2mm focal length. It delivers reliable transmittance and durability for standard engraving and cutting jobs.
TEN-HIGH 30mm Gold-Plated Copper CO2 Mirrors
Best for: High-power CO2 laser reflective applications
- Laser Type
- CO2
- Compatible Material
- Gold
View on Amazon: TEN-HIGH 30mm Gold-Plated Copper CO2 Mirrors Affiliate link
This is a gold-plated copper reflective lens designed for CO2 laser systems. It features a 30mm diameter and 3mm thickness. The material offers greater than 99.9% transmittance for high efficiency. It supports compatible power ranges from 40W to 5000W. The package includes three mirrors. This lens suits users needing high-power durability and superior optical performance for engraving or cutting tasks.
Pros
- Gold-plated copper material for high temperature resistance
- Greater than 99.9% transmittance for high efficiency
- Compatible with 40W to 5000W power ranges
- Package includes three mirrors for replacement
Cons
- Limited to plane shape rather than focal options
- Requires manual alignment and mounting
- No included mounting hardware or tools
Good fit if
- You need a high-power reflective lens for CO2 systems
- You require multiple mirrors for maintenance
- You prioritize high transmittance for efficiency
Skip if
- You need a focusing lens for precision engraving
- You require a smaller 20mm or 25mm diameter
- You prefer a ready-to-install kit with hardware
Verdict: TEN-HIGH 30mm Gold-Plated Copper CO2 Laser Lens is a robust option for high-power CO2 laser users needing durable reflective optics. It fits those who value high transmittance and bulk replacement mirrors over integrated mounting solutions.
Specifications side by side
| Spec | TEN-HIGH 12mm ZnSe CO2 Focal Lens | TEN-HIGH 30mm Gold-Plated Copper CO2 Mirrors |
|---|---|---|
| Laser Type | CO2 | CO2 |
| Compatible Material | not stated | Gold |
| Weight | 3.53 ounces | not stated |
| Size | 3"/76.2mm | Gold-Plated Copper |
| Color | not stated | D: 30mm |
Frequently asked questions
What is the difference between the focal lens and the reflective lens?
The focal lens concentrates the laser beam onto the material surface for cutting or engraving. The reflective lens, often called a mirror, redirects the beam path within the machine. You use the focal lens at the nozzle and the reflective lens to guide light between components.
Which lens is best for standard CO2 laser engraving?
The TEN-HIGH 12mm ZnSe CO2 Focal Lens is designed for standard engraving and cutting tasks. It features a 76.2mm focal length and a 12mm diameter. This setup provides reliable transmittance and durability for typical jobs on various materials.
Is the copper lens suitable for high-power applications?
Yes, the TEN-HIGH 30mm Gold-Plated Copper CO2 Mirror is built for high-power reflective applications. The gold plating enhances durability and transmittance. It is ideal for users who need robust optics that can handle intense laser energy without degrading quickly.
What material is the reflective lens made of?
The reflective lens is made of gold-plated copper. This combination offers excellent thermal conductivity and reflectivity for CO2 lasers. The copper base helps dissipate heat, while the gold layer ensures high performance during prolonged use.
Does the focal lens come in different sizes?
The listed TEN-HIGH focal lens has a 12mm diameter and a 76.2mm focal length. This specific size is common for many CO2 laser modules. Always verify your machine’s requirements before purchasing to ensure proper fit and alignment.
How do I know if I need a reflective lens?
You need a reflective lens if your laser setup uses mirrors to direct the beam. These lenses redirect the CO2 laser path between the tube and the galvanometer head. They are essential for maintaining beam integrity and precision in complex optical paths.
Can I use the focal lens for cutting thick materials?
The 76.2mm focal length focal lens is suitable for standard cutting and engraving. It delivers reliable transmittance for various material thicknesses. For thicker materials, you might need a longer focal length lens to achieve a deeper focal point and cleaner cuts.
What is the weight of the TEN-HIGH focal lens?
The TEN-HIGH 12mm ZnSe CO2 Focal Lens weighs 3.53 ounces. This lightweight design makes it easy to handle during installation or replacement. The compact size fits standard mounting brackets found in most CO2 laser engravers.

