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-   -   does this spell the end for lenses as we know them? (https://forums.steves-digicams.com/news-discussion-107/does-spell-end-lenses-we-know-them-201804/)

kazuya Sep 21, 2012 10:48 AM

does this spell the end for lenses as we know them?
 
Scientists are reporting development of a revolutionary new lens -- flat, distortion-free, so small that more than 1,500 would fit across the width of a human hair -- capable in the future of replacing lenses in applications ranging from cell phones to cameras to fiber-optic communication systems. The advance could lead to smart phones as thin as a credit card

http://www.sciencedaily.com/releases...0919125606.htm

SIMON40 Sep 21, 2012 11:03 AM

Small devices are fragile... :)

TCav Sep 21, 2012 11:10 AM

Quote:

Originally Posted by kazuya (Post 1319625)
does this spell the end for lenses as we know them?

In forty or fifty years, maybe.

TCav Sep 21, 2012 11:12 AM

Quote:

Originally Posted by kazuya (Post 1319625)
... The advance could lead to smart phones as thin as a credit card.

My guess is that the lens on a smartphone isn't what makes it as thick as it is.

Add the thickness of the display to the thickness of the battery, and you've probably got it.

peripatetic Sep 23, 2012 12:25 PM

Yes, undoubtedly the end of lenses as we know them. But not for a while.

Mark1616 Sep 23, 2012 5:54 PM

Cool, roll on a 500mm f2.8 that weighs 500g (or probably well less), I'm just not looking forward to the 200,000+ price tag :)

I love tech and honestly this is such a cool period in time to be living in, it rocks!

peripatetic Sep 26, 2012 2:25 AM

Quote:

Originally Posted by SIMON40 (Post 1319628)
Small devices are fragile... :)

Not necessarily - especially when they are really small.

SIMON40 Sep 26, 2012 3:42 AM

Ah... but then you'll lose them.... :)

VTphotog Sep 26, 2012 9:20 AM

Sounds somewhat less than useful. A human hair is about .004 inch, or .1mm . This would make each individual lens about 60 nanometers (I think- my abacus is in need of oiling, so I may have slipped a decimal point) . Good depth of field there, but you might run into some diffraction problems. Might also have some problems passing visible light.

brian

kazuya Sep 27, 2012 2:48 PM

Although the new lens is ultra-thin, it has a resolving power that actually approaches the theoretical limits set by the laws of optics. The lens surface is patterned with tiny metallic stripes which bend light differently as one moves away from the center, causing the beam to sharply focus without distorting the images. The current version of the lens works at a specific design wavelength, but the scientists say it can be redesigned for use with broad-band light.


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