Material: High class CVD ZnSe material (US II-VI). High-quality materials ensure more stable laser system; excellent High-Power density endurance. Compatible power: 40W-200W.
Exquisite Coating Process: Superb Double-sided solid coating, increase service life, precision slicing, polishing and grinding process, Reduced laser loss, wiping resistant, high temperature resistance, excellent optical properties, high working efficiency.
High efficiency: CVD ZnSe Laser Focus Lens has smaller focusing spot size, the energy is more concentrated, making the CO2 laser engraving, cutting machine more efficient.
Usage: CO2 replacement laser lens are mainly used in CO2 laser engraving and cutting well.
Lens Shape: Plano-convex( some meniscus shape may mixed together when manufacturing, but it is the same effect as Plano-convex shape).
Product Specifications
Package Dimensions: 3.66 x 2.99 x 0.98 inches
Item model number: IIVI-20-635
ASIN: B01DP2HGYM
Customer Reviews: 4.5 out of 5 stars 58Reviews
Best Sellers Rank: #132,937 in Arts, Crafts & Sewing (See Top 100 in Arts, Crafts & Sewing) #482 in Jewelry Making Engraving Machines & Tools
Is Discontinued By Manufacturer: No
Item Weight: 0.915 ounces
Manufacturer: Shanghai Top Nine Industiral Co.,Ltd
Country of Origin: China
Date First Available: March 31, 2016
Product Information
Product description
Parameters
Material
CVD Znse/ ll-VI Znse
Transmittance
≥99.8%
Diameter Tolerance
+0 / -0.13mm
Thickness Tolerance
±0.25mm
FL Tolerance
<±2%
Centration
<3 arc minutes
Clear Aperture
>90%
Surface Figure
<λ/2 per 1" Dia
AR/AR Coating
R<0.5% per surface
Compatible Power
40W-200W
Attentions:
Double-sided solid coating, wiping resistant, extended durability, precision slicing polishing and grinding processes, high temperature laser resistance, excellent optical properties, high working efficiency. Laser transmittance can be as high as 99.8%.
Normally, the short focal length is suitable for engraving. If used for cutting, we suggest to work with long focal length.
Causes of lens broken and tips:
(1) Ensure that the air cooling is good, otherwise the temperature will be too high and the lens will overheat and crack
(2) There are condensation water drops in the lens barrel, which may cause the lens to break.
(3)The lens is stuck or pollute with the jets of the cut or engrave material, Uneven heating for a long time is easy to cause broken. It should be cleaned with cotton ball dipped in absolute alcohol or acetone in time.
(4) When adjusting the light path, the light path is not correct, the laser accidentally hit the edge of the lens and the junction of the lens barrel, resulting in broken.
About Lens Shape
Focal length is the distance between the lens and the workpiece(material being cut or engraved). Before replace or install the lens, please confirm the diameter and focal length firstly. It is recommended to use convex upward, flat or concave facing the engraving or cutting material.