1999 AMI Wafer
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1999 AMI Wafer
Yet another different wafer. I think the BW are interesting. Can't wait to do a nice panorama.
-JW:
-JW:
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
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Here's a quick video of the 1999 5" AMI Idaho Wafer at 40x with a Mirau Interferometer objective on a Nikon MM-11 with universal epi illuminator using bright field.
https://www.youtube.com/watch?v=MJ-ke9Y0dB0
-JW:
https://www.youtube.com/watch?v=MJ-ke9Y0dB0
-JW:
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
- Contact:
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
- Contact:
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
- Contact:
- rjlittlefield
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Challenging subject, nice result!
This one is entirely JW's work, by the way. The one I helped him with was a completely different stack.
I do wonder whether this is intended to be cross-eyed or parallel. It looks more "natural" to me if viewed parallel. That puts the big contact pads in front of the other structures, versus pads behind when viewed cross-eyed.
--Rik
This one is entirely JW's work, by the way. The one I helped him with was a completely different stack.
I do wonder whether this is intended to be cross-eyed or parallel. It looks more "natural" to me if viewed parallel. That puts the big contact pads in front of the other structures, versus pads behind when viewed cross-eyed.
--Rik
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
- Contact:
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
- Contact:
I shot this one with a green filter and converted it to BW. This turned out excellent 3D wise with my Pocket 3Duv glasses. Lot's of dept and layers are visible. Probably at least 6 layers .. very cool. Same camera 50D with 2.5x relay lens and a Nikon BD Plan APO 100/0.90. Only a 9 image stack.
-JW:
-JW:
Last edited by Smokedaddy on Mon Feb 26, 2018 9:14 am, edited 3 times in total.
- rjlittlefield
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Those are nice little tools, aren't they?Smokedaddy wrote:My intent was only viewing with my Berezin Pocket 3Dvu glasses.
They give what I've called "parallel" view, with each eye seeing the image on its same side.
That's beautiful! Much less obvious artifacts than the full-color version.I shot this one with a green filter and converted it to BW.
--Rik
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
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- Posts: 1976
- Joined: Sat Oct 07, 2006 10:16 am
- Location: Bigfork, Montana
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Adding some technical information about the stereo...
JW tells me that the image is not cropped, but in addition to the 100X objective there was a 2.5X relay lens.
So then I work the numbers like this...
Depth is about 3 microns (9 frames @ 1/3 micron per frame)
Width is nominally 89.2 microns (22.3 mm sensor width, divided by 250X total optical magnification (=100*2.5))
-2% corresponds to view angle about -30.7 degrees. (Crosscheck using the formulas at zerenesystems.com: TAN(RADIANS(-30.7)) * (3/89.2) * 100 = -1.997)
+4% corresponds to view angle about 49.9 degrees. (Crosscheck: TAN(RADIANS(49.9)) * (3/89.2) * 100 = 3.994)
Total viewing angle is 80.7 degrees (=49.9+30.7, rounded from extra digits not shown) .
Typical max viewing angle in real life is only about 8-10 degrees (10 degrees = 2.5 inches between eyes, 14" viewing distance), so the stereo pair is exaggerating depth by about 10X. If you were able to look at something this small through a real stereo microscope, it would look a lot more flat.
Looking again this morning, I'm still really pleased by the gray-scale pair. Nice job, JW!
--Rik
JW tells me that the image is not cropped, but in addition to the 100X objective there was a 2.5X relay lens.
So then I work the numbers like this...
Depth is about 3 microns (9 frames @ 1/3 micron per frame)
Width is nominally 89.2 microns (22.3 mm sensor width, divided by 250X total optical magnification (=100*2.5))
-2% corresponds to view angle about -30.7 degrees. (Crosscheck using the formulas at zerenesystems.com: TAN(RADIANS(-30.7)) * (3/89.2) * 100 = -1.997)
+4% corresponds to view angle about 49.9 degrees. (Crosscheck: TAN(RADIANS(49.9)) * (3/89.2) * 100 = 3.994)
Total viewing angle is 80.7 degrees (=49.9+30.7, rounded from extra digits not shown) .
Typical max viewing angle in real life is only about 8-10 degrees (10 degrees = 2.5 inches between eyes, 14" viewing distance), so the stereo pair is exaggerating depth by about 10X. If you were able to look at something this small through a real stereo microscope, it would look a lot more flat.
Looking again this morning, I'm still really pleased by the gray-scale pair. Nice job, JW!
--Rik