[HN Gopher] Image formation with multiple wavelengths - simulati...
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       Image formation with multiple wavelengths - simulation [video]
        
       Author : nothacking_
       Score  : 27 points
       Date   : 2024-02-26 20:35 UTC (1 days ago)
        
 (HTM) web link (www.youtube.com)
 (TXT) w3m dump (www.youtube.com)
        
       | hrnnnnnn wrote:
       | If you enjoyed that, I can recommend the section in this video
       | about computational photolithography in ASML machines.
       | 
       | https://www.youtube.com/watch?v=rdlZ8KYVtPU
        
       | next_xibalba wrote:
       | How would this be explained to a non-physicist? The video
       | description doesn't really help (not complaining, I am sure I'm
       | not the intended audience here).
        
         | araes wrote:
         | At least one of the effects in the video (different wavelengths
         | responding differently going through a clear object) is shown
         | much better with this type of video.
         | 
         | https://upload.wikimedia.org/wikipedia/commons/f/f5/Light_di...
         | 
         | The red (long) wave lengths only get bent a little bit. The
         | purple (short) wave lengths get bent a really large amount.
         | 
         | The video linked is basically simulating something like a red
         | lightbulb (750 nm) and a purple lightbult (375 nm) shining
         | through a glass lens simultaneously. See this article on lenses
         | and lens phenomena:
         | 
         | https://en.wikipedia.org/wiki/Lens
         | 
         | Or, simply go try this optics simulator, which gives a much
         | better ability to play around with the ideas. The link shared
         | should go to an example that's almost the same.
         | 
         | https://phydemo.app/ray-optics/simulator/#XQAAAAIDAgAAAAAAAA...
         | 
         | Don't turn the rays up to much though or it will cripple your
         | GPU unless its high end. Color simulation can be turned on/off
         | on the upper-right settings (it's a huge resource hog compared
         | to no color effects).
        
           | next_xibalba wrote:
           | This is fantastic. Thank you very much.
        
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       (page generated 2024-02-27 23:01 UTC)