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Engineering
General Engineering
Optics for High Resolution Laser Imaging: Finding the Best Path
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[QUOTE="Mike Gaffer, post: 6859844, member: 555019"] Hi Baluncore, I didn't think about beam stability with the galvanometers. I guess they cant perform a raster scan efficiently without quite a bit of "vibration settling." For the beam path I provided, it actually is in 2-D --- the actual printer I own, and it scans the bottom of a translucent plastic build tray in the exact pattern of each layer of a 3D part... then moves it upward and does the next layer. I do believe you are correct with using a 1D scanning method. Something like: Laser diode -> focusing lens -> spinning scanning octagonal mirror with an optical encoder on the motor -> then a diverging meniscus lens -> concave lens... [ATTACH type="full" alt="xp6UK.gif"]322918[/ATTACH] or [ATTACH type="full" alt="images.jpg"]322919[/ATTACH] or [ATTACH type="full"]322920[/ATTACH]and move the workpiece on a set of acme ball screws for the 2nd dimension, slowly forward. Is there any good way of calculating what last 2 lenses I need? Is there like an Ansys of optics? or a SolidWorks focused on optics? Thanks for your thoughts! Ted [/QUOTE]
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Optics for High Resolution Laser Imaging: Finding the Best Path
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