10.6um Focusing Lens

ZnSe (Zinc Selenide) CO2 Laser Focusing Lenses (Plano-convex Lenses)

Description of Part Number: FL-xxxx-F-D-T-EN-yy

• FL: single-element focusing lens
• Xxxx: laser wavelength, 10.6um.
• F: focal length, mm
• D: lens diameter, mm
• T: lens edge thickness, mm
• EN: inch unit (If there is no EN, it means metric unit in mm).
• yy: others Coating: di-electric coating at 10.6nm.

Remark: 1. FL=focal length; BFL-back focal length. 2. There are too many items and models and welcome to call us or send us an email if you have any further enquiry or question!

LPZ Series Plano-convex ZnSe Lenses Coated AR-AR @ 10.6um

This wide range of CO2 plano-convex lenses have been prepared to fit most OEM, Industrial and Medical laser systems. All have been manufactured to high-quality laser specifications for high-power applications. Made with laser grade zinc selenide with computer optimized anti-reflection coatings.

ZnSe CO2 Negative Laser Focusing Lenses (Plano-Concave Lenses )

• Diameter tolerance: +0/-0.1mm
• Focal length tolerance: +/-0.5%
• Angle of incidence: 0 degree
• Transmission: >99.4% Reflectance:<0.1% per surface
• Absorption:<0.2% per surface

Remark: 1. WL-wavelength; FL=focal length; BFL-back focal length. 2. There are too many items and models and welcome to call us or send us an email if you have any further enquiry or question!

Positive meniscus lenses may be used to increase the numerical aperture of a positive lens assembly without an undue increase in the aberrations. For the case of a lens of thickness tc in air, and surfaces with radii of curvature R1 and R2, the effective focal length f is given by:

where n is the refractive index of the lens medium. The quantity 1/f is also known as the optical power of the lens. The the back focal distance:

In the sign convention used here, the value of R1 will be positive if the first lens surface is convex, and negative if it is concave. The value of R2 is positive if the second surface is concave, and negative if convex. Note that sign conventions vary between different authors, which results in different forms of these equations depending on the convention used.

• Meniscus lenses form the largest and most popular part of our product range.
• Optimised meniscus designs
• Manufactured in high quantities to keep costs low
• Quality matches or exceeds any other supplier

Specifications:

• Diameter tolerance: +0/-0.1mm
• Focal length tolerance: +/-0.5%
• Angle of incidence: 0 degree
• Transmission: >99.4%
• Reflectance:<0.1% per surface
• Absorption:<0.2% per surface

The following standard meniscus are available.

LMZ Series Meniscus ZnSe Lenses Coated AR-AR @ 10.6 µm

This wide range of CO2 plano-convex lenses have been prepared to fit most OEM, Industrial and Medical laser systems. All have been manufactured to high-quality laser specifications for high-power applications.

Made with laser grade zinc selenide with computer optimized anti-reflection coatings.

Specifications:

• Material: ZnSe Laser Grade C.V.D. type
• Diameter Tolerances: +0.000", -0.005"
• Thickness: ±0.010"
• Surface Figure: < 1/40 wavelength @ 10.6µm
• Centration: < 0.001"
• Focal Length Tolerance: ±1.0%
• Surface Quality: < 40/20 scratch-dig Laser Finish

Spectral Performance:

• Standard AR Coating type Both Sides @ 10.6µm (AR)
• Absorption: < 0.25 % total
• Reflectance: < 0.20% per surface @ 10.6µm
• Transmittance: > 99.0% typical
• Ultra Low Absorption AR Coating type Both Sides @ 10.6µm (ULA)
• Absorption: < 0.15 % total
• Reflectance: < 0.25% per surface
• Transmittance: > 99.0% typical
• Dual Band AR Coating type Both Sides @ 10.6µm and .633µm (DBAR)
• Absorption: < 0.30 % total
• Reflectance: < 0.25% per surface @ 10.6µm
• Transmittance: > 98.5% @ 10.6µm with > 90% @ .633µm

10.6um Focusing Lenses Used in Branded Lasers Machines

AMADA Focusing Lenses

Bystronic Focusing Lenses

CINCINNATI Focusing Lenses

MAZAK Focusing Lenses

Mitsubishi Focusing Lenses

TRUMPF Focusing Lenses

The lenses for other brands are available opon request. Please contact us for more information.