Cloudray II-VI CVD ZnSe CO2 Laser Focus Lens

2 sold in last 8 hours
CO2 Laser
$ 35.00 USD $ 30.00 USD
Size Guide
Diameter *
Focal Length *
$ 30.00 USD

II-VI Focusing Lens — USA CVD ZnSe

Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light.
II-VI Infrared is the world leader in laser optics, delivering an unbeatable combination of innovation, quality, and expertise.
II-VI Infrared also delivers the largest vertically integrated CO2 laser optics manufacturing process -- from raw materials to finished coated products -- in the world.

Product Structure


 High-quality ZnSe crystal

USA CVD ZnSe material

Up to 300W CO2 laser resistance
High precision process

Precise sling, polishing, grinding processes

High temperature, laser resistance
High Transmittance 99.5%

High quality material and exquisite coating reduce the loss of laser
Superb Coating Process

Doble-sided solid coating Wipeing resistance extended durability

Product Size

Laser Path

How to determine focal length

 Diameter       38.1mm(1.5") 50.8mm(2") 63.5mm(2.5") 76.2mm(3") 101.6mm(4")
19.05mm Plano convex Plano convex Plano convex - -
20mm Plano convex Meniscus Meniscus Meniscus Meniscus
Material: USA CVDZnSe  Wavelength:10.6um 
Diameter:12,18,19.5,20,25mm  Diameter Tolerance:±0.1mm 
FocusLength:1.5,2,2.5,3,4,5inches Focus Length Toleance:±2% 
Transmittance:99.5% Clear Aperture(Polished)>90% 
AR CoatingReflectivity<0.3% Scratch-Dig:20-10


Cloudray Test Process

Clean instructions

1.Use an air bulb to blow off any loose contaminants. (dust, lint particles)
2.Squeeze a few drops of acetone onto the lens tissue, wetting the complete optic's diameter. (smudges, fingerprints)
3.Using the cotton swab and distilled vinegar, wipe the lens. Immediately use a wet cotton swab to remove any acetic acid, then clean with a clean dry cotton swab. (spittle, oils)


Returns Policy

You may return most new, unopened items within 30 days(contact us: of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.(You can return it to the address below after contacted us: Room 101, 3-A, No.10 Huashenmiao, Huashen Technology Park Yuhuatai District, Nanjing, China 210000)


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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