Axicons

Everything relating to microscopy hardware: Objectives, eyepieces, lamps and more.
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MichaelG.
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Axicons

#1 Post by MichaelG. » Sun Jan 22, 2023 10:55 am

Just stumbled across this KODAK patent from 1956, which may be of interest:

Optical aligners employing axicons

https://worldwide.espacenet.com/patent/ ... US2759393A

MichaelG.
Too many 'projects'

GerryR
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Location: Virginia, USA

Re: Axicons

#2 Post by GerryR » Sun Jan 22, 2023 6:17 pm

For others who may be in the same boat as me, not knowing what an axicon is, try this:
https://www.edmundoptics.com/knowledge- ... t-axicons/

Never to old to learn something new!!

MichaelG.
Posts: 3980
Joined: Mon Apr 10, 2017 8:24 am
Location: North Wales

Re: Axicons

#3 Post by MichaelG. » Sun Jan 22, 2023 6:55 pm

Thanks for the additional link, Gerry

I had assumed that the patent would provide sufficient explanation of what they were :oops:
… but it’s good to know that they are alive and well, and living at Edmund Optics

MichaelG.
Too many 'projects'

Scarodactyl
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Joined: Sat Mar 03, 2018 9:09 pm

Re: Axicons

#4 Post by Scarodactyl » Sun Jan 22, 2023 8:17 pm

Seems like they might be interesting for darfield. I suppose the conical reflector on cheap gemological darkfield condensers is analogous.

Sure Squintsalot
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Re: Axicons

#5 Post by Sure Squintsalot » Tue Feb 07, 2023 4:33 am

My brain shuts down when I see the words "coherent light applications include...".

BramHuntingNematodes
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Re: Axicons

#6 Post by BramHuntingNematodes » Tue Feb 07, 2023 5:30 am

Image
Yeah they're neat!
1942 Bausch and Lomb Series T Dynoptic, Custom Illumination

MichaelG.
Posts: 3980
Joined: Mon Apr 10, 2017 8:24 am
Location: North Wales

Re: Axicons

#7 Post by MichaelG. » Tue Feb 07, 2023 8:43 am

Thanks for the picture, Bram

… it’s worth the proverbial ‘thousand words’

MichaelG.
Too many 'projects'

Scarodactyl
Posts: 2775
Joined: Sat Mar 03, 2018 9:09 pm

Re: Axicons

#8 Post by Scarodactyl » Tue Feb 07, 2023 3:35 pm

Looks like fun. It is also one of the only lens shapes I might be able to DIY with my own equipment...

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