Epi Design (FS and AS between two lenses)

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microb
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Joined: Wed Mar 27, 2019 6:39 am

Epi Design (FS and AS between two lenses)

#1 Post by microb » Wed Jul 07, 2021 5:20 am

Microscope papers on various techniques use 4F to get image and Fourier conjugate planes to manipulate. But what lens design name goes with this epi design (in orange) where two lens a distance apart get field stop and aperture stops between? The Olympus AX has AS and FS reversed from the diagram below. It has a light source, a lens, an aperture stop iris, a field stop iris, and then a lens before the optical path hits the filter cube.

Does anyone have pointers to something explaining the optical paths here? Since the two iris controls are removable in the Olympus AX and they are rather hefty large block, I’d like to add in a 4F system to do the stops and some other things. So basically pull those two blocks out and replace with some right angle mirrors to double or triple the path length and monkey around with the light before sending back in to the lens and the filter cube.
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FS_AS.jpg
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microb
Posts: 729
Joined: Wed Mar 27, 2019 6:39 am

Re: Epi Design (FS and AS between two lenses)

#2 Post by microb » Wed Jul 07, 2021 6:57 pm

I might have found a matching diagram here: https://www.researchgate.net/figure/Sch ... _301670651
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Schematic-diagram-of-the-optical-system-L1-aspheric-lenses-L2-imaging-lens-f-14-200.png
Schematic-diagram-of-the-optical-system-L1-aspheric-lenses-L2-imaging-lens-f-14-200.png (96.5 KiB) Viewed 1768 times

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