The single-element "flat" lens. Take it with a grain of salt

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf

==
Later...
Ron C
--

On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

On 6/4/2016 5:39 PM, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.


No need to speculate. See page 8 and fig. 4 of the above paper.

==
Later...
Ron C
--

On Sat, 4 Jun 2016 18:16:47 -0400, Ron C wrote:

On 6/4/2016 5:39 PM, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.


No need to speculate. See page 8 and fig. 4 of the above paper.

I missed page 8: thanks.

==
Later...
Ron C
--

Regards,

Eric Stevens

On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

So, another story blown so out of proportion, it's basically B.S. Thanks for proving it.

I think it's premature to say that.
--

Regards,

Eric Stevens

On Sat, 4 Jun 2016 19:48:04 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 19:28:08 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

So, another story blown so out of proportion, it's basically B.S. Thanks for proving it.

I think it's premature to say that.

Premature to call this anything more than a theory. But there have been other "glad" hyped discoveries that amounted to nothing. Quantum dots, invisibility cloaking, buckyballs, graphene, carbon nanotubes, aerogel. None have amounted to anything much yet.

Not to mention lasers, which once were described as a phenomenon
looking for an application.
--

Regards,

Eric Stevens

On 05/06/2016 14:48, RichA wrote:
On Saturday, 4 June 2016 19:28:08 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

So, another story blown so out of proportion, it's basically B.S. Thanks for proving it.

I think it's premature to say that.

Premature to call this anything more than a theory. But there have been other "glad" hyped discoveries that amounted to nothing. Quantum dots, invisibility cloaking, buckyballs, graphene, carbon nanotubes, aerogel. None have amounted to anything much yet.

Quantum dots are being used in TV (Samsung UHD wide gamut displays),
several hundred million dollars worth of aerogel is sold per annum, and
carbon nanotube composite materials are already commercialised.
In those cases "expensive" is an issue, but that will change.
(Synthetic) diamond cutting tools used to be very expensive - now I can
buy masonry / tile cutting blades for a few dollars at my local hardware
store.

On Sun, 5 Jun 2016 15:30:13 -0700 (PDT), RichA
wrote:

On Sunday, 5 June 2016 05:22:58 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 19:48:04 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 19:28:08 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

So, another story blown so out of proportion, it's basically B.S. Thanks for proving it.

I think it's premature to say that.

Premature to call this anything more than a theory. But there have been other "glad" hyped discoveries that amounted to nothing. Quantum dots, invisibility cloaking, buckyballs, graphene, carbon nanotubes, aerogel. None have amounted to anything much yet.

Not to mention lasers, which once were described as a phenomenon
looking for an application.
--

Regards,

Eric Stevens

An exception doesn't prove a rule.

If you do a little research on the list you have produced you will
find they are all going places. They are certainly much further down
the road than is the Federico flat lens.
--

Regards,

Eric Stevens

On Sun, 5 Jun 2016 17:57:12 -0700 (PDT), Rich A
wrote:

On Sunday, June 5, 2016 at 7:03:33 PM UTC-4, Eric Stevens wrote:
On Sun, 5 Jun 2016 15:30:13 -0700 (PDT), RichA
wrote:

On Sunday, 5 June 2016 05:22:58 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 19:48:04 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 19:28:08 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

So, another story blown so out of proportion, it's basically B.S. Thanks for proving it.

I think it's premature to say that.

Premature to call this anything more than a theory. But there have been other "glad" hyped discoveries that amounted to nothing. Quantum dots, invisibility cloaking, buckyballs, graphene, carbon nanotubes, aerogel. None have amounted to anything much yet.

Not to mention lasers, which once were described as a phenomenon
looking for an application.
--

Regards,

Eric Stevens

An exception doesn't prove a rule.

If you do a little research on the list you have produced you will
find they are all going places. They are certainly much further down
the road than is the Federico flat lens.
--

Regards,

Eric Stevens

Darn, and here I was thinking 300mm f/2.8 lenses weighing 2 pounds were just around the corner. But then, how will Canon and Nikon charge $5000 each for a metal tube with a glass plate and some titanium dioxide on it?

They may not have to, but it depends on how many they plan to sell.
--

Regards,

Eric Stevens

On 6/6/2016 9:03 AM, RichA wrote:
On Monday, 6 June 2016 05:14:58 UTC-4, Whisky-dave wrote:
On Sunday, 5 June 2016 03:48:09 UTC+1, RichA wrote:
On Saturday, 4 June 2016 19:28:08 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 15:52:29 -0700 (PDT), RichA
wrote:

On Saturday, 4 June 2016 17:38:53 UTC-4, Eric Stevens wrote:
On Sat, 4 Jun 2016 13:46:57 -0400, Ron C wrote:

On 6/3/2016 8:00 PM, RichA wrote:
I remember when they announced this for microwaves. Whether it works
is a big "IF" and I'll believe it when I see it, for ANY visual light
optical device. Scientists have a way of peppering websites with all
kinds of happy new inventions that NEVER see the light of day.

http://www.bbc.com/news/science-environment-36438686


Haven't seen Federico in ages. Interesting work that's
still in the laboratory curiosity stage.

For a deeper understanding check out this publication:

https://arxiv.org/ftp/arxiv/papers/1605/1605.02248.pdf


As I suspected: it's basically monochromatic and will, presumably,
suffer from chromatic aberration.
--

Regards,

Eric Stevens

So, another story blown so out of proportion, it's basically B.S. Thanks for proving it.

I think it's premature to say that.

Premature to call this anything more than a theory. But there have been other "glad" hyped discoveries that amounted to nothing. Quantum dots, invisibility cloaking,

But that was the media calling it invisible. We have a $5 million dollar contract with a coupld of other universities. They are NOT talking about invisible in the visible spectrum but in the IR spectrum. We know how to do it we just haven't the fabrication technigues to do it as yet.

buckyballs, graphene, carbon nanotubes,

Just because yuo can;t buy them in the local supermarket doesn;t mean they have no uses.

https://en.wikipedia.org/wiki/Potent...rbon_nanotubes
As of 2013, carbon nanotube production exceeded several thousand tons per year, used for applications in energy storage, automotive parts, boat hulls, sporting goods, water filters, thin-film electronics, coatings, actuators and electromagnetic shields.[2][3] CNT-related publications more than tripled in the prior decade, while rates of patent issuance also increased.[4]

Carbon nanotubes as envisioned were to be continuous, not little bits mixed in to epoxy like fiberglas or simple carbon fiber. Remember the "space elevator" and how carbon nanotube filament was going to make it possible? Haven't heard much from that recently.

Wake me up when the popular science media reports on the creation of scrith.
==
Later...
Ron C
--