Exquisite Technology: Superb Double-sided solid coating, precision slicing, polishing and grinding process, Reduced laser loss, wiping resistant, high temperature resistance, excellent optical properties, high working efficiency.
High efficiency: PVD ZnSe CO2 laser focus lens has Focusing Spot Size more Smaller, the energy is more concentrated, making the CO2 laser engraving, cutting machine more efficient.
Application: CO2 laser lens are mainly used in CO2 laser engraving and cutting well.
Product Specifications
Part Number: LENS-20-508
Item Weight: 0.634 ounces
Package Dimensions: 2.83 x 2.4 x 0.91 inches
Country of Origin: China
Item model number: 905211
Is Discontinued By Manufacturer: No
Size: Dia:20mm FL:50.8mm/2"
Shape: Round
Item Package Quantity: 1
Batteries Included?: No
Batteries Required?: No
Product Information
Product description
PARAMETERS
Material
PVD Znse
Transmittance
≥99.5%
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
Surface Quality
40-20 scratch and dig
AR/AR Coating
R<0.5% per surface
Compatible Power
30W-100W
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 is as high as 99.5%
Normally, 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 SHAPES
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.