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TOPIC: Lapped and Un-lapped Micro-Fine Stones at 800x

Re: Lapped and Un-lapped Micro-Fine Stones at 800x 2 years 4 days ago #4727

  • wickededge
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Lagrangian,

I think I did the last scale incorrectly. Here is another, uncompressed TIFF with the scale added using a much simpler and more accurate method: Uncompressed Image It's still been shrunken by Blogger. If you send me your email address, I can send you the full image via dropbox or something similar - it's over 28 MB in size.
--Clay Allison
Last Edit: 2 years 4 days ago by wickededge.
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Re: Lapped and Un-lapped Micro-Fine Stones at 800x 2 years 4 days ago #4728

  • AnthonyYan
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Hi Clay,

Thanks! I sent you a private message with my e-mail. :)

Sincerely,
--Lagrangian
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Re: Lapped and Un-lapped Micro-Fine Stones at 800x 2 years 2 days ago #4785

  • AnthonyYan
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Hi Clay,

Thanks for the updated and uncompressed image. :)
I measured the 20 micron line to be 216 pixels long.

So a micron is about 10.8 pixels in length.

So the wavelengths of visible light (0.38 - 0.74 microns) would be 4 to 8 pixels.

The highest theoretical resolution for an optical microscope is about 1/2 wavelength, or 0.2 microns, which is around 2 pixels. Of course, most microscopes don't have such a high resolution in practice, but some get close.

Pretty neat! :D

Sincerely,
--Lagrangian

P.S. For the .jpg that Clay posted above, the 20 micron bar is about 97 pixels wide. So the pixel measurements are approximately one half the numbers above.
Last Edit: 2 years 2 days ago by AnthonyYan. Reason: Added P.S.
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