20mm Dia ZnSe Focus Lens for CO2 Laser Engraver/Cutter Cutting Machine FL 1.5/2/2.5/3/4/5''

Specification:

Name: ZnSe Focus Lens

Material: ZnSe

Diameter: 20mm

Thinckness: 2mm

Anti-Reflective Coating: at 10.6 μm

Size	Focal Length
#1	38.1mm/1.5"
#2	50.8mm/2"
#3	63.5mm/2.5"
#4	75mm/3"
#5	100mm/4"
#6	127mm/5"

Features:

- ZnSe is used for optical windows, lenses, mirrors, prisms and optical blanks, plates, disks, sheets, slabs particularly for infrared applications

- Zinc Selenide (ZnSe) is transparent in wide spectral range from yellow (visible) to far IR. ZnSe material is a chemically inert, non-hygroscopic and highly pure product that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock and stability in virtually all environments, easily machined.

- To obtain superior transmittance, ZnSe crystals are grown by Chemical Vapor Deposition process. Zinc Selenide is polycrystalline material, demonstrates superior CO2 laser transmittance and is employed in the transmission optical components used in CO2 laser processing.

Package Included:

1 x 20mm Dia ZnSe Focus Lens

20mm-Dia-ZnSe-Focus-Lens-for-CO2-Laser-EngraverCutter-Cutting-Machine-FL-15225345quot-1427657

Shipping Time

After you successfully placed an order at RenhotecIC.com, you will receive a confirmation email with your invoice. Once your order is shipped, you will be emailed with the tracking information of your package. Also, you can choose your preferred shipping method during the checkout process. Kindly advise: please select DHL/FedEx if you need our product urgently.

The timeline of the whole shipping process is shown below:

The total delivery time is calculated from the time your order is successfully placed to the time received. Total delivery time is broken down into processing time and shipping time.

Processing time: The time it takes to prepare your item(s), includes preparing your items, performing quality inspections, and packaging for shipment. Normally, the processing time is 1-3 days (Only include Monday to Saturday ) after getting your order.

Shipping time: The time for your item(s) to travel from our warehouse to your destination. The shipping time depends on the shipping method you chose. Please refer to the shipping rate section for details.

Shipping Rates

You could choose the shipping method based on your preference during checkout, different shipping methods will apply different rates and shipping times. Please check the following chart for detail:

Shipping Method Shipping Rates Shipping Times
Flat Shipping (Promotion)
$10 About 5-30 Working Days to Worldwide (Only include Monday to Saturday )
Standard Express（0.5KG starting price listed）
Based On Weights About 5-15 Working Days to Worldwide (Only include Monday to Saturday )
Priority Express （0.5KG starting price listed）
Based On Weights About 3-7 Working Days to Worldwide (Only include Monday to Saturday )

In addition, the transit time depends on where you're located, the shipping method you choose, and where your package comes from. We will keep you informed of any problems here to help you get your order as soon as possible.

If you want to know more information, please contact the customer service by contact form or sales@renhotecic.com. We will settle your problem as soon as possible. Enjoy shopping!