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Thread: Lens Design Revolution?

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    Senior Member drunkenspyder's Avatar
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    Lens Design Revolution?

    If this was posted elsewhere, my apologies for the redundancy. But I found this article about a solution for Spherical Aberration quite intriguing. A tidbit:
    To the average person, that equation is probably just more confirmation that a career in physics and mathematics wasn’t for them. But for lens makers, it can provide an exact blueprint for designing a lens that completely eliminates any spherical aberration. It doesn’t matter the size of the lens, the material it’s made from, or what it will be used for, this equation will spit out the exact numbers needed to design it to be optically perfect.
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    Re: Lens Design Revolution?

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    Senior Member drunkenspyder's Avatar
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    Re: Lens Design Revolution?

    Quote Originally Posted by onasj View Post
    Better still. Not sure how I missed that in PetaPixel, but I did. So thanks.

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    Senior Member drunkenspyder's Avatar
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    Re: Lens Design Revolution?

    Deleted. Duplicate post. Admins, please remove. Regrets and thanks

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    Subscriber & Workshop Member GrahamWelland's Avatar
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    Re: Lens Design Revolution?

    Ultimately though perfection is over rated ...
    Remember: adventure before dementia!

    The World is a book, and those that do not travel read only one page ...
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    Senior Member dchew's Avatar
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    Re: Lens Design Revolution?

    I wouldn’t want to enter that equation into Excel.

    Dave
    How glorious a greeting the sun gives the mountains! - John Muir

    davechewphotography.com

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    Subscriber Member tashley's Avatar
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    Re: Lens Design Revolution?

    Quote Originally Posted by GrahamWelland View Post
    Ultimately though perfection is over rated ...
    From personal experience I can tell you that that's true....


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    Re: Lens Design Revolution?

    Quote Originally Posted by drunkenspyder View Post
    If this was posted elsewhere, my apologies for the redundancy. But I found this article about a solution for Spherical Aberration quite intriguing. A tidbit:
    Should all current lens designers go back to school? Or better go to Mexico

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    Re: Lens Design Revolution?

    Quote Originally Posted by tashley View Post
    From personal experience I can tell you that that's true....

    Agreed. I think perfection is a divine word.

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    Subscriber and Workshop Member MGrayson's Avatar
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    Re: Lens Design Revolution?

    The accomplishment was an analytic solution. Computers and computer operated machinery use numerical solutions. With limited computing power, an analytic solution is more accurate, but modern computers can get to atomic distance tolerances (i.e., much better than the machinery) without breaking a sweat. In other words, this doesn't change lens design at all.

    Besides, it solves ONE aberration. There are many, and they interact. That's why we have multiple element lenses.

    Don't get me wrong. I'm a mathematician, and such a result is important, and the author deserves all recognition. It just won't change lens design.

    Matt

    Disclaimer: I could be completely wrong about all this, and would LOVE to be for the learning it would imply. But I'd be very surprised.
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    Senior Member JoelM's Avatar
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    Re: Lens Design Revolution?

    I agree with MGrayson. I am a theoretical physicist, that means too much math, and believe that the headline is sensationalism exemplified. Firstly, I don't think that it was a 2000 year old problem and with respect to current optics, it has no practical use. HOWEVER, it is an elegant solution and wonderful piece of work on his part. He deserves much credit.

    Joel

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    Re: Lens Design Revolution?

    And the solution is for two conjugate planes: the plane of focus and the image plane. You may find the bokeh really horrendous. I can't remember who said this, but every solution results in two new problems...
    Last edited by Shashin; 10th August 2019 at 12:15.
    Will

    http://www.hakusancreation.com
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