Upgrade your diode laser with high-quality laser lens pack
Endurance offers a full laser lens pack.
The accuracy of laser cutting and laser engraving depends on the laser lens quality.
The better lens – the better the result you will get.
A better lens means a better laser beam spot.
If the lens is made out of plastics or is defective then it will not be useful for laser cutting or laser engraving.
The engraving will be blurred and fuzzy.
Endurance offers a laser lens pack for laser makers and professionals.
There are 4 types of lenses that we are offering:
• Regular 3 element lens [installed by default] (black one)
• G2 lens (golden with a small lens)
• G7 lens (golden with a big lens and silicone ring)
• G8 lens (the black one with a longer tube)
3-element lens (Cleanest beam profile, best for low power lasers)
3-element lens has a long focal length, low divergence, and clean beam profile but it has a significant output loss.
Advantage Tight laser beam with the cleanest beam profile
Downsides 70% efficiency (1W diode = 700mw using this lens)
G2 lens(best for power)
The G2 is a single lens enabling the maximum true power of the laser diode for rapid close-range burning and engraving.
Advantage 95% efficiency, reduces the beam aperture
Downsides Increase the beam divergence (thickness) and the beam profile
G7 lens(Balanced Multi-Purpose Perfection)
This lens is a cross between the divergence and the power lens. With the G7, the beam divergence won’t increase as it does with the G2 and you will still get very close power of the laser diode.
Advantage 88% efficiency, long focal length and increases beam aperture.
Keep in mind that a low-quality Chinese lens might have some optical artifacts and other issues that might have a poor effect on laser cutting and laser engraving.
All these lenses were designed by professional optics suppliers and tested in the Endurance laser lab.
3 element laser lens
G2 laser lens
G7 laser lens
G8 laser lens
|About the lens||Standard 3 element laser lens||Short focal G2 laser lens||Multi focal G7 laser lens||Long focal G8 lens.|
|G7 Aspheric Glass lens||G8 Precision Glass Molding|
|Optimal focal range||30-100mm||5-30mm||20-100mm||30-100mm|
|Laser lens material||glass||glass||glass||glass|
|Size||M9 x 0.5mm x 10||M9 x 0.5mm x 10||M9 x 0.5mm x 10||M9 x 0.5mm x 10|
|Wavelength||405-450nm||400nm-700nm broadband coated||400-700nm||400-700nm|
|Components||3 element lens||Single Element||Single Element||Element Aspheric|
|Laser lens parameters||FL: about 8mm||Front Focus: 4.02mm||EFL=8mm||EFL: 8mm|
|Lens Size: 6mm||Back Focus: 4.8mm||Laser lens thickness=2.3mm||NA: 0.20|
|Working Focus: 2.357mm||NA=0.2|
|Naked Lens inside: 6.33mm(Diameter)||CA=6.5|
|Focal Length: 7mm|
|Frame material||Black metal||Golden metal||Golden metal||Black metal|
|Laser power||100mW ~ 10W||100mW ~ 10W||100mW ~ 10W||100mW ~ 10W|
|The best tested focal range*||63-67 mm||32-33 mm||83-85 mm||70-75 mm|
|The smallest laser beam spot*||85 x 130 microns (uM)||65 x 130 microns (uM)||88 x 130 microns (uM)||77 x 130 microns (uM)|
* – those measurements were made in Endurance laser lab.