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Difference between 2.5D and 3D dynamic focus system

There are 2.5D and 3D dynamic focus system in the market, what’s the difference between them?
Today,we have the topic on this.
2.5D system is a End-focusing unit. It works with a f theta lens. Its working logical is:
The Z axis adjusts focal length of central point on working field, it minor adjusts in according to work depth’s change, the f theta lens adjusts focal length of working field.
Generally, the aperture size of 2.5D system is within 20mm, working field is focus on small size. It is especially suitable for precision micro processing application such as deep engraving, drilling.
The 3D dynamic focus system is a Pre-focusing unit. The working logical is:
Through software control of the joint coordination of the Z axis and XY axis, with the different scanning position, the Z axis moves back and forward to compensate the focus, ensuring the spot uniformity and consistency in the whole working range.
When a 3D  focus system processes flat and 3D surface working,, the movement of Z axis compensate the focus without f theta’s limitation, so it has more options for aperture and work field, articulately suitable for super large laser processing.
At present, the maximum aperture FEELTEK can offer is 70mm, that can achieve 2400mm work width with unlimited length.
Well, I believe you have a better understanding of the different dynamic focus system right now.
This is FEELTEK, your customizable partner for 2D to 3D scan head.
More sharing is coming soon.

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Post time: Jun-21-2021