Author Topic: 5.5w vertical lines recent cutting problem (not wood grain)  (Read 6699 times)

just_doug

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Re: 5.5w vertical lines recent cutting problem (not wood grain)
« Reply #15 on: September 29, 2019, 07:06:36 AM »
This conversation got off on a tangent here, but while we are there let me mention this.  When my laser is in perfect focus I can see a faint, sharp image of the diode face.  Focus the image of a light bulb on a piece of paper with a standard magnifying lens and you will see what I am talking about.  On some LED flashlights the bright spot they project is an image of the diode face, even the lead connections are visible.  I am going to go out on a limb here and make a guess that no two diodes are exactly the same. and that the shape of the beam, at focus is the shape of the emitting portion of the diode itself.
Doug LaFleur
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ggallant571

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Re: 5.5w vertical lines recent cutting problem (not wood grain)
« Reply #16 on: September 29, 2019, 07:15:37 AM »
I think the optics play a significant role. My 5.5W is very much a rectangle and when I rotate the focus lens the orientation of the rectangle changes.
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