https://petapixel.com/2013/07/29/hack-t ... x8apPa1Lf4
http://www.biophot.caltech.edu/research/fpm.html
https://www.caltech.edu/about/news/push ... mits-39959
Hack Transforms Common Microscopes Into Gigapixel Superscope
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- iconoclastica
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Microscopy illumination engineering using a low-cost liquid crystal display
I am still looking for a suitable LCD display that doesn't use sub-pixels.
I am still looking for a suitable LCD display that doesn't use sub-pixels.
--- felix filicis ---
What software are you going to use ?iconoclastica wrote:Microscopy illumination engineering using a low-cost liquid crystal display
I am still looking for a suitable LCD display that doesn't use sub-pixels.
- iconoclastica
- Posts: 486
- Joined: Sat Jun 25, 2016 12:34 pm
- Location: Wageningen, Gelderland
At high magnification (and NA), with moving subjects, concentrating light efficiently is no less important than shaping light.
I was able to use simple masks under condenser at objective NA of 1.3 to obtain good 3D visual effects. But contrast was not good from resulting a camera images (my sensor is micro 4/3 of Olympus e-M1 mk1; dynamic range is not as good as bigger sensors). And due to low light efficiently (most light was lost by masking), I had to use high iso to get fast shutter speed for freezing motion.
Using light concentrating ability of Leitz Heine condenser (which has internal mirror surface), I was able to get better contrast and similar 3D effects. But I could not broaden the light cone of Heine (it is not user-controllable) and shadows/halos increased significantly as contrast increased and eventually destroyed images. Those experiments were done with a 30W DIY LED.
I hope a fancy software can help with that one day. I volunteer to be a guinea pig if a software developer can gift me a free software to try
I was able to use simple masks under condenser at objective NA of 1.3 to obtain good 3D visual effects. But contrast was not good from resulting a camera images (my sensor is micro 4/3 of Olympus e-M1 mk1; dynamic range is not as good as bigger sensors). And due to low light efficiently (most light was lost by masking), I had to use high iso to get fast shutter speed for freezing motion.
Using light concentrating ability of Leitz Heine condenser (which has internal mirror surface), I was able to get better contrast and similar 3D effects. But I could not broaden the light cone of Heine (it is not user-controllable) and shadows/halos increased significantly as contrast increased and eventually destroyed images. Those experiments were done with a 30W DIY LED.
I hope a fancy software can help with that one day. I volunteer to be a guinea pig if a software developer can gift me a free software to try