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wiki:groups:lasercutter:laser_focus_lens_focal_length [2026/08/07 15:58] – phbwiki:groups:lasercutter:laser_focus_lens_focal_length [2026/08/07 16:00] (current) – phb
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 ![Laser focus diagram](https://vanhack.ca/_media/tool/laser-focus-lens-focal-length.png) ![Laser focus diagram](https://vanhack.ca/_media/tool/laser-focus-lens-focal-length.png)
  
-![Material focus length diagram](https://vanhack.ca/_media/wiki/groups/lasercutter/beam-diagram.jpg)+Different lenses have different average sizes for the focal point: 
 +![Lens size to point focus diagram](https://vanhack.ca/_media/wiki/groups/lasercutter/beam-diagram.jpg)
  
 As the diagram indicates, material surfaces that are placed above or below the focal point will have a larger cutting area than the potential minimum size. A larger area means the same energy is dispersed over a larger area, and therefore may not create as deep of a cut as you are expecting. As the diagram indicates, material surfaces that are placed above or below the focal point will have a larger cutting area than the potential minimum size. A larger area means the same energy is dispersed over a larger area, and therefore may not create as deep of a cut as you are expecting.