|Download Optics for CO2-Lasers Datasheet (PDF, 198 KB)|
Dual-focus lenses (DFL) are a revolutionary new type of lens for CO2 laser cutting.
DFL are intended to be used as a direct replacement for conventional lenses in some industrial laser systems and applications. The basic principal of the lenses coming from their title lies in existence of a couple of focal points. Complex design of these lenses allows to distribute an incident laser energy and deliver its calculated fraction into a secondary (lower) focus.
Especially designed to assist in a range of thick-section cutting jobs such lenses give the followings advantages:
Tydex proposed and has been using a novel approach in fabrication of DFL, which in particular did allow us to create DFL of cylindrical shape.
A specification below presents standard product. Custom-made sizes and specifications are available as well. Non-standard lenses can be designed and proposed upon certain RFQ.
|1.||Type of a part:||cylindrical dual-focus lens|
|3.||Overall dimensions, mm:||25.4 (+0/-0.25) x 25.4 (+0/-0.25)|
|4.||Thickness, mm:||4.0 (+0.5/-0.0)|
|5.||Radii of curvature:||the values depend on required combination of EFL|
|6.||EFL tolerance @ 10.6 µm, %:||+/- 2|
|7.||Stripe width, mm:||4 (+0.5/-0)|
|8.||Surfaces quality, scr/dig:||60/40|
|9.||Surface figure, fringe:||8|
|10.||AR Coating reflectivity per surface
10.6 µm, %:
Tydex supplies cylindrical DFL with the following EFL combinations: 127 & 254 mm, 169 & 254 mm.
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