Newsmeldung von slashCAM:Black Silicon CMOS image makes ultra-sensitive transducer of rudi - 6 Feb 2009 10:27:00 How heise (and deti in our forum) have been reported, the American company SiOnyx discovered a material that is significantly photosensitive than conventional silicon from the current CCD and CMOS manufacturing. This new material should be easy to be a hundred times more sensitive and a large spectral bandwidth covering of the infrared to ultraviolet range. The "Black Silicon" is also in the normal CMOS manufacturing process used to what the company is a fast market adaptation hoped. Once we are already excited about Sony's new low-light technology, the HDR-XR500 Series wait, this might be a further milestone in the weak light videography are: Light sets you only have to accentuate with weak light. And outside you need centimeter thick ND;)
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Here is the link to the news with links and images on the pages Slashcam Magazine
Antwort von WoWu:
How new is it's not .... since it discovered in
1997 Harvard and 1999 was published, has, in an attempt to chip the Fuji in a mixture with "normal" silicon into a camera is inserted, nothing done next.
But good that the German synonymous Press after 10 years shall take note.
http://www.hno.harvard.edu/gazette/1999/12.09/silicon.html
Here are some additional details of the TU Ilmenau:
http://www.tu-ilmenau.de/fakmb/index.php?id=3719#10364
Whether the Relavants sensors for the market is rather questionable.
It reduces the noise in the Sensorauslesung, which plays against the noise in any photo in low light only a minor role. On the Dynamics of the sensor size would change nothing and the next spectrum in the UV / IR area is more harmful to the photography, but we tried with filters, as these areas to get away.
Furthermore, a common sensor today an efficiency of approx. 90-95%.
Where is the progress since then?
That should be an issue for electricity generation or for night vision equipment, but less for video.
Antwort von jarod84:
I would be pretty awesome if this would come. That could be synonymous to digital photography in low light revolutionize the field. And so we still shooting in bright daylight / photography can could be quite an elektrochromatisch abdunkelndes glass front of the sensor set such as for auto dimming mirrors in the car (only effective).
Antwort von LarsProgressiv:
Hello Wolfgang
[...] On the Dynamics of the sensor size would change nothing and [...] why is this so? Had it not much more when reading levels?
Can you just try to explain to ordinary?
Thank you
Lars
Antwort von WoWu:
Hello Lars ...
.. because you are not synonymous Photo Noise get away.
The dynamic range is always a signal to noise ratio for.
Theoretically, each sensor has an arbitrary dynamic range, the noise you would not see it.
And it changes nothing, unfortunately, because the photo is the real noise problem ... and that is always in proportion to the amount of light processed ... and remains committed to the "image illumination" is always the same and in the present chip design through the amplification of the photons (Spieglung) is created, similar to L3CCDs or EMCCDs.
Relevant experience with such devices are not new.
One solution would consist in the noise (as in the film) back to "cultivate". Strangely, everyone can find the movie the "Grain" good at any video rümpft nose ....
But these are synonymous is not really the whole problem of this sensor ... look just at the unspeakable sensitivity to UV and IR. When ND is the use of quite conventional sensors is a problem ... probably not even really know.
So, I do not know where the euphoria regarding the use of video comes from. ... And the industry does not seem synonymous, or else there would have such sensors in the cameras.
Note: Strangely the article is not synonymous of Störabständen ....
@ jarod84
I would be pretty awesome if this would come. That could be synonymous to digital photography in low light revolutionize the field. Not really, because the problems described above, you are already at DSLR s.6400 ASA.
Antwort von LarsProgressiv:
Hello Wolfgang,
I have now times with the term
Antwort von WoWu:
Hi Lars.
There are not more photons on the sensor, when another sensor synonymous. The increased sensitivity is not merely by an electrical amplification generated, as in "normal sensors" but rather by a quasi generated by Spieglung Photo multiplication. Therefore, the noise increases synonymous with equally. I have a high light output so the same effect as if I am a long time to enrich photons. Instead of the other 7 Noise (here and summarized as readout noise) Photo noise as dominant factor.
As I said, the experiments with EMCCDs or L3CCDs did not synonymous usable results. As for the faster reading is concerned, you are in similar problems as before. Higher speeds lead to higher temperatures and with both 7 ° doubles the noise.
For EMCCDs in which the electrons on the way to the output are multiplied, one has tried, with high clock speeds to operate and can thus reduce the readout noise, but not the photo noise.
But I would like to reiterate the values of above 700nm indicates ... This is with the filtering techniques that are currently available to a massive problem.
There were still several points that are not necessarily synonymous for use speak.
I really think that an application for special purposes (astronomy, because if instead of one day only a few minutes exposure to contribute significantly to the sharpness in) is given, but the one in the (high quality) video technology was not so happy, already have the last 10 years have shown that the technique known, but (except for the Fuji-test) remained unused.
Antwort von domain:
One solution would consist in the noise (as in the film) back to "cultivate". Strangely, everyone can find the movie the "Grain" good at any video rümpft nose ....
This is an interesting finding in the area of viewing and quite right was observed. Previously, it was especially high in SW-shooting in connection with lots of contrast (but ultimately rather detailarm) drawing high-performance lenses in the range of 1:1, (x), a certain quality characteristic of the first rank a beautiful grain to show and that was mitigated somewhat synonymous in the Color.
All the beauty lies only in the eye of the beholder and is usually totally dependent fashion and, just like the beautiful 24p shakes in the movie.
Aesthetic sensibility is teiweise education thing. In a South American Indian tribe girls with strong Turmschädeln and squint eyes especially desires.
Antwort von WoWu:
... For most middle today .... :-))
They give it to rarely.
Without fun, it really is as you say. I still know how to Early Youth photo times Illford AGP with the paper in the darkroom have tried just with the grain to work.
And yes, I think corn is still a good stylistic means.
Did you know that an AVC Grain Modeling involves the Grain originating in material analyzed, the grain in the transfer removed in order to save data and the model in parallel s.die STB transmits, in which it returned to the picture is.
It can be seen on the model for the treatment of influence. So it is back to the future style and resources will be standing when I then Grain in the positive impression can change it myself synonymous in Picture no longer interfere.
Attempts are we so high on the wish list.
Antwort von domain:
Pointillism on AVCHD sounds interesting, synonymous if the idea already 120 years old
http://www.poster.net/seurat-georges/seurat-georges-seine-grande-jatte-2602499.jpg
Antwort von darg:
Is it not that the video Grain is frowned upon because it is a simple rectangular always equal and so bored with mold, while the film is irregular shapes and therefore has more of an offset pattern is? Is simply a question of how the brain with the bypasses and just regular pattern of the brain can sometimes not so forth can be processed, such as random and irregular pattern.
Perhaps it is simply not the CCDs with square pixels more finished, but rather to bring irregular shapes. Is it difficult in the Fab that teach the people ....
Antwort von domain:
Nee, the roaring grains are synonymous with electronic sensors repeatedly s.anderen points. This can be seen only in single image viewing really.
A beautiful grain has the FX1 to Gain. Rare so nice grain in the video field of view, is still original and by no noise filter at the affected coding :-)
Antwort von MarcBallhaus:
A beautiful grain has the FX1 to Gain. Rare so nice grain in the video field of view, is still original and by no noise filter at the affected coding :-) If your not serious? It is the colorful and ugliest G (r) ain thing I have ever seen, honestly now, find it quite appalling. Is this a typical CMOS Noise ... I mogs nit.
MB
Antwort von WoWu:
As noisy as a CMOS?
Antwort von domain:
If your not serious? It is the colorful and ugliest G (r) ain thing I have ever seen, honestly now, find it quite appalling.
You have absolutely right and it was my Ernst. Super CCD noise in all colors. And if you only remember that at the beginning of this camera in several tests almost complete noise was granted freedom. Worse was really only the HC1.
But I know people who really appreciate this feature, this is no joke.
