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Full colour sensor research



 
 
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  #1  
Old April 13th 14, 06:27 PM posted to rec.photo.digital
Alfred Molon[_4_]
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Posts: 2,591
Default Full colour sensor research

There has been some research on full colour imaging sensors, with some papers
published as early as 1998. The papers of 1998/99 focus on semiconducting
polymers or organic semiconductors:
http://journals.cambridge.org/action...ge=online&aid=
8062197

http://onlinelibrary.wiley.com/doi/1...4095%28199812%
2910:17%3C1431::AID-ADMA1431%3E3.0.CO;2-4/abstract

while the Nikon patent is about a setup with multiple dichroic mirrors:
http://www.dpreview.com/news/2007/8/9/nikonimagesensor

But there are no commercial products (except for Foveon, which uses a different
technique). So have all these (non-Foveon) approaches resulted in failures?
--

Alfred Molon
------------------------------
Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site
  #2  
Old April 13th 14, 07:00 PM posted to rec.photo.digital
nospam
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Posts: 24,165
Default Full colour sensor research

In article , Alfred
Molon wrote:

There has been some research on full colour imaging sensors, with some papers
published as early as 1998. The papers of 1998/99 focus on semiconducting
polymers or organic semiconductors:
http://journals.cambridge.org/action...ge=online&aid=
8062197

http://onlinelibrary.wiley.com/doi/1...4095%28199812%
2910:17%3C1431::AID-ADMA1431%3E3.0.CO;2-4/abstract

while the Nikon patent is about a setup with multiple dichroic mirrors:
http://www.dpreview.com/news/2007/8/9/nikonimagesensor

But there are no commercial products (except for Foveon, which uses a
different
technique). So have all these (non-Foveon) approaches resulted in failures?


so far, yes. the tradeoffs are not worth it and they might never be.

the benefit (higher chroma resolution) isn't anything humans can see
anyway, and to get that requires giving up stuff they *can* see,
including luminance resolution, dynamic range, cost to manufacture,
speed of processing and more. it's a very bad deal.

even foveon agrees, which is why their new sensor is 'bayer-ish', where
it interpolates nearby pixels. it's actually rather amusing how much
they have to backpedal on their claims now.

bayer is an ideal tradeoff for human generation and consumption of
images and it's going to be *really* hard to beat.
  #3  
Old April 14th 14, 01:21 AM posted to rec.photo.digital
Paul Ciszek
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Posts: 244
Default Full colour sensor research


In article ,
nospam wrote:

bayer is an ideal tradeoff for human generation and consumption of
images and it's going to be *really* hard to beat.


I saw an article recently about a new sensor type involving graphene
"cones" on top of a backdrop pixel. You would get single color
information from the cone, and "everything else" information from
the backdrop pixel. Best of both worlds?

--
Money is Speech
Corporations are People
Freedom is Slavery
Ignorance is Strength

  #4  
Old April 14th 14, 11:09 PM posted to rec.photo.digital
Alfred Molon[_4_]
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Posts: 2,591
Default Full colour sensor research

In article , Paul Ciszek says...

I saw an article recently about a new sensor type involving graphene
"cones" on top of a backdrop pixel. You would get single color
information from the cone, and "everything else" information from
the backdrop pixel. Best of both worlds?


Do you have a URL of it?
--

Alfred Molon
------------------------------
Olympus E-series DSLRs and micro 4/3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site
  #5  
Old April 15th 14, 12:35 AM posted to rec.photo.digital
Alan Browne
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Posts: 12,640
Default Full colour sensor research

On 2014.04.13, 20:21 , Paul Ciszek wrote:

In article ,
nospam wrote:

bayer is an ideal tradeoff for human generation and consumption of
images and it's going to be *really* hard to beat.


I saw an article recently about a new sensor type involving graphene
"cones" on top of a backdrop pixel. You would get single color
information from the cone, and "everything else" information from
the backdrop pixel. Best of both worlds?


Or more worlds.

Graphene is poised to make major disruptions in electronics and
materials over the coming decade - it's unlikely that it won't have
several photography applications.

--
"Big data can reduce anything to a single number,
but you shouldn’t be fooled by the appearance of exactitude."
-Gary Marcus and Ernest Davis, NYT, 2014.04.07

  #6  
Old April 16th 14, 05:39 AM posted to rec.photo.digital
Paul Ciszek
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Posts: 244
Default Full colour sensor research


In article ,
Alfred Molon wrote:
In article , Paul Ciszek says...

I saw an article recently about a new sensor type involving graphene
"cones" on top of a backdrop pixel. You would get single color
information from the cone, and "everything else" information from
the backdrop pixel. Best of both worlds?


Do you have a URL of it?


No, I can't find it, darn it.

--
Money is Speech
Corporations are People
Ignorance is Strength

  #8  
Old April 19th 14, 11:26 PM posted to rec.photo.digital
Paul Ciszek
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Posts: 244
Default Full colour sensor research


In article ,
charles wrote:
On Mon, 14 Apr 2014 00:21:20 +0000 (UTC), (Paul
Ciszek) wrote:


In article ,
nospam wrote:

bayer is an ideal tradeoff for human generation and consumption of
images and it's going to be *really* hard to beat.


I saw an article recently about a new sensor type involving graphene
"cones" on top of a backdrop pixel. You would get single color
information from the cone, and "everything else" information from
the backdrop pixel. Best of both worlds?



this, maybe?

http://phys.org/news/2014-04-pixels-...as.html#ajTabs


YES! That was the article. Not graphene after all, just reduced dimension
silicon on top of more silicon.


--
Money is Speech
Corporations are People
Ignorance is Strength

 




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