3 element / G2 / G7 / Laser focus Lenses - Sanwu Lasers
3 element / G2 / G7 Laser lenses
3 element / G2 / G7 Laser lenses
3 element / G2 / G7 Laser lenses
3 element / G2 / G7 Laser lenses
3 element / G2 / G7 Laser lenses
3 element / G2 / G7 Laser lenses
Brand:Sanwu
Product Code:Lens
weight:5g
Product Condition:New
$10.00 inc. tax
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Description
3-element lens (Standard lens, best for low power lasers)
3-element lens has a long focal length, low divergence and clean beam profile but it has a noticeable output loss with its multiple lens layers.

Advantage
Tight laser beam with the cleanest beam profile
Downsides  70% efficiency (1W diode = 700mw with it)

G2 lens(best for 405nm lasers)
G2 is a high pass single lens which allows more laser light to pass through, it is the lens for maximum power and engraving.

Advantage 95% efficiency, small beam aperture perfect for close range burning
Downsides Increase beam divergence(thicker beam) and affects the beam profile 

G7 lens(best for most wavelengths)
G7 is the second best high pass single lens but it won't increase the beam divergence like G2 does. G7 has a long focus length just like 3-elements lens, a well balanced lens between 3-element(divergence) and G2(power).

Advantage  88% efficiency, long focal length and tight beam profile





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