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  • Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
  • Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
  • Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
  • Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
  • Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
  • Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine
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Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine

  • 1 - 9 Pieces
    $8.50
  • 10 - 99 Pieces
    $8.40
  • 100 - 499 Pieces
    $8.10
  • >= 500 Pieces
    $7.80

Customization:

Diameter customization（Min.Order: 50 pieces）
Customized logo（Min.Order: 50 pieces）
Customized packaging（Min.Order: 50 pieces）
View product details

Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Laser Beam Focusing: Designed as a plano convex lens with a diameter of 18mm, this lens precisely focuses laser beams for high-accuracy engraving and cutting in industrial and commercial applications.
  • PVD Coating Durability: The PVD (Physical Vapor Deposition) ZnSe (Zinc Selenide) coating ensures resistance to environmental wear, maintaining optical clarity and efficiency even under prolonged use.

Key features

  • 1. Advanced Material Technology

    • With PVD-coated zinc selenide (ZnSe) material, you can achieve high durability and optical clarity in harsh environments, outperforming traditional germanium or silicon lenses in mid-IR applications.*

  • 2. Simplified Interactive Design

    • With a plano convex design, you can ensure precise laser beam focusing and simplified alignment in engraving systems, unlike biconvex lenses that require complex setups.*

  • 3. Optimized Performance Parameters

    • With an 18mm diameter and optimized curvature, you can achieve faster and more accurate laser cutting/engraving, surpassing smaller lenses in beam control efficiency.*

  • 4. Commercial-Grade Scenario Solutions

    • With commercial-grade durability, you can support continuous operation in industrial laser systems, unlike home-use lenses prone to overheating or distortion under prolonged use.*

  • 5. Customizable Adaptability

    • With customizable parameters (size, thickness, gradient), you can tailor the lens to specialized applications like medical imaging or astronomy, adapting beyond standard off-the-shelf solutions.*

Product details

Wholesale China PVD ZnSe Plano Convex Lens Dia18mm Laser Focus Lens for Laser Engraving Cutting Machine

Wholesale China PVD ZnSe Plano Convex Lens Dia18mm is a precision optical component designed for laser engraving and cutting machines. Featuring a gradient color transition from yellow to orange, these lenses optimize light transmission and filtration. Their plano-convex design ensures sharp focus, while the ZnSe material provides high durability and thermal stability for industrial applications.

Technical specifications

FeatureSpecificationBenefit
MaterialZinc Selenide (ZnSe)High transmission in mid-IR spectrum; chemical resistance
Diameter18mm ±0.05mmPrecision fit for standard laser systems
Curvature TypePlano-ConvexReduces spherical aberration for sharp focus
Color GradientYellow-to-orange (customizable)Optimizes wavelength filtering for specific applications

Customization guide

Adjustable parameters include:

  • Thickness: Modify to control light refraction for specialized focal lengths.
  • Gradient intensity: Tailor to filter specific wavelengths (e.g., 1064nm lasers).
  • Material coating: Add anti-reflective or protective layers for harsh environments.

Get inspired

With their gradient color and plano-convex design, these lenses excel in laser systems requiring precise light management. For instance, the yellow-orange gradient reduces glare in high-power applications, while ZnSe material ensures stability under thermal stress.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Surface Accuracyλ/4 @632.8nmλ/10 @632.8nm (+15%)λ/20 @632.8nm (+30%)*
Transmission Range3-12µm3-14µm (+16.7%)3-16µm (+33.3%)
Chemical ResistanceStandardEnhancedTriple industry standard**

Supplier's note

  1. Technical Breakthroughs:

    • ZnSe Material: Enables high thermal conductivity and resistance to harsh chemicals, outperforming traditional BK7 glass.
    • Gradient Color Design: Reduces light scatter by 20% compared to uniform-colored lenses.
    • Precision Curvature: Achieves 98% light transmission efficiency in mid-IR ranges.

  2. Version Selection Guide:

    • Base Model: Ideal for small-scale engraving workshops needing cost-effective solutions.
    • Advanced Model: Suitable for industrial users requiring higher precision (e.g., medical device manufacturing).
    • Pro Model: Designed for R&D labs or aerospace applications where extreme durability and broad wavelength compatibility are critical. For example, the Pro’s triple chemical resistance allows safe handling of corrosive gases in laser cutting, paired with its ultra-smooth surface to minimize beam distortion.

*Comparative improvement over Base Model. **Triple the ISO 9001:2015 standard for chemical resistance.

Frequently asked questions

  • Which PVD ZnSe plano convex lens suits laser engraving machines with high-power beams?

  • How to clean ZnSe plano convex lenses without damaging the PVD coating?

  • ZnSe vs BK7 for laser cutting lenses: Which offers better durability in mid-IR applications?

  • Can ZnSe plano convex lenses be customized for 20mm diameter or adjusted focal lengths?

  • Are ZnSe plano convex lenses RoHS-certified for industrial laser systems?

  • Why choose plano convex over bi-convex lenses for laser engraving focus precision?

  • Does PVD coating enhance ZnSe lens durability in harsh industrial environments?

  • Are 18mm ZnSe plano convex lenses compatible with Epilog or Trotec laser systems?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-power laser systems (e.g., CO₂ lasers)Industry Standard: BK7 Glass (500nm-2500nm transmission)
Our Base: ZnSe (2-14μm, ASTM E438)
Our Advanced: Multi-layer ZnSe (2-16μm, ISO 14644) ▲▲		Superior IR transmission for CO₂ lasers; lightweight compared to glassHigher cost than BK7; requires careful handling to avoid scratches
Optical PerformancePrecision manufacturing (e.g., aerospace parts)Industry: ±1% focal accuracy (ISO 10110)
Our Base: ±0.8% (ISO 10110) ▲
Our Advanced: ±0.5% (ISO 10110) ▲▲		Reduces material waste and alignment errors in high-precision tasksAdvanced versions may require specialized calibration tools
Environmental ResistanceHarsh chemical environments (e.g., semiconductor cleanrooms)Industry: Passes ASTM D543 (20 chemical exposures)
Our Base: ASTM D543 (30 exposures) ▲
Our Advanced: ASTM D543 (50 exposures) ▲▲		Resists common solvents and oils used in industrial cleaning processesBase version may degrade over time in extreme pH conditions
Mechanical DurabilityIndustrial machinery (e.g., laser cutters in factories)Industry: 6H hardness (ISO 14506)
Our Base: 7H ▲
Our Advanced: 8H ▲▲		Reduced need for frequent replacements due to scratch resistanceAdvanced coatings may increase fragility under extreme thermal shock
Weight & PortabilityPortable laser engraving setups (e.g., field service)Industry: 200g (glass)
Our Base: 180g (ZnSe) ▲
Our Advanced: 160g (lightweight ZnSe) ▲▲		Easier to handle and transport for mobile applicationsBase version still heavier than some polymer alternatives
Customization FlexibilitySpecialized applications (e.g., medical imaging, defense)Industry: Limited to standard sizes
Our Base: Custom sizes (±5% tolerance) ▲
Our Advanced: ±1% tolerance ▲▲		Tailored solutions for niche requirements like gradient coatings or thicknessesCustom orders may have longer lead times and higher costs

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