Hack Transforms Common Microscopes Into Gigapixel Superscope

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Smokedaddy
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Post by Smokedaddy »


iconoclastica
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Post by iconoclastica »

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.
--- felix filicis ---

Saul
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Post by Saul »

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.
What software are you going to use ?

iconoclastica
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Post by iconoclastica »

Saul, I suppose you mean software to decode the fourier plane? I haven't yet thought that far. I am not even sure it can be done on a finite tube mic. But even then the lcd offers interesting possibilities as a dynamic darkfield, COL, etc insert.
--- felix filicis ---

zzffnn
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Post by zzffnn »

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 :twisted:

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