Re: Contious optical receiver

On 10 Aug, 00:40, Randy Poe <poespam-t...@xxxxxxxxx> wrote:
On Aug 9, 5:50 pm, jonas.thornv...@xxxxxxxxxxx wrote:





On 9 Aug, 23:14, j...@xxxxxxxxxxxxxxxxxxxx wrote:

jonas.thornv...@xxxxxxxxxxx wrote:
On 9 Aug, 19:54, j...@xxxxxxxxxxxxxxxxxxxx wrote:
jonas.thornv...@xxxxxxxxxxx wrote:
On 9 Aug, 18:14, j...@xxxxxxxxxxxxxxxxxxxx wrote:
jonas.thornv...@xxxxxxxxxxx wrote:
On 9 Aug, 16:52, Sam Wormley <sworml...@xxxxxxxxx> wrote:
jonas.thornv...@xxxxxxxxxxx wrote:
Is it possible to blend light frequencies from different sources
through a prism?

Certainly.
What differ a prism from a RGB mask?
I guess there must be somekind of relation between the size of the
pixel unit and the receiver/receptor device for the actual blending of
wavelength to take place. Given big enough pixels no blending take
place.

There is no physical "blending" of light from an RGB mask, rather
it is in how the eye and brain work leading to the perception that
the individual colored dots blend into one of another color.
So you say the blending a CCD record is not physical?
So our brain create the RECORDED CCD result so when you print out the
picture from a recorded monitor or TV you still have the RGB
information "IDIOT"?

No, I said the human perception of a CRT's three discrete colored
dots as a single dot of another color is an optical illusion caused
by the way the brain and eye work.

You do know movies are a rapid series of still pictures the brain and
eye "blend" into what appears to be motion, don't you?

Same thing, sorta.

As far as CCD's go, they work like CRT's in reverse.

The sensor array has a color filter mask over it so each "pixel" is
actually three pixels of three different colors.

There is no mixing of light frequencies to produce light of a different
frequency in any of this.

That would require something that reacts none-linearly to light, which
don't exist either in the human body, CRT's or CCD's.
If you cared to read what i wrote...

It would be easier if you learned English.

Well if receptors and brain can do there sure have to be an algorithm
behind doing the blending of the three sources with different
luminance, and i see no problem with an electronic DEVICE LIKE A CCD
doing the same thing.

That's because you have no understanding of what is going on.

The whole point of CCD cameras, or any color camera for that matter, is
to "unblend" the light frequencies into three discrete values.

It doesn't matter if there are three filters picking up 3 different
wavelenghts they are mixed down using an algorithm. The question is
there a way to bypass the computational effort "algorithm" mixing
using an optical device like a small lens or prism.

There is NO, repeat, NO mixing going on in a CCD.

The output is 3 numbers for each "pixel" which represent the intensity
of 3 different colors.

One more time, there is NO, repeat, NO mixing going on in a CCD.

There is quite the opposite happening.

Well visible light have a range Wikipedia"The visible spectrum (or
sometimes optical spectrum) is the portion of the electromagnetic
spectrum that is visible to (can be detected by) the human eye.
Electromagnetic radiation in this range of wavelengths is called
visible light or simply light. There are no exact bounds to the
visible spectrum; a typical human eye will respond to wavelengths in
air from 400 to 700 nm, "450-750 terahertz"

The response in your brain is a combination of the responses
from your 3 color receptors. An entire complex spectrum
creates three R, G, B signals in your brain which then maps
to what you perceive as "color". It isn't simply pure wavelength.
There is no wavelength that corresponds to "brown", for
instance.

If your eyes is attached to a blue wall the wall reflect the incoming
light 450-495 nm "i do not know how to convert to terahertz".

c = f*lambda, so f = c/lambda. Divide c in m/sec (3e8) by lambda
in meters to obtain f in Hz.

Ex, for 450 nm: (3e8 m/sec)/(450e-9 m) = 6.67*10^14 Hz, or
667 THz.

NOW THE CONCLUSION IDIOT... LIGHT DO NOT TRAVEL AS RGB...EACH COLOR
HAVE A LIMITED RANGE SPECTRA....WHEN YOU LOOK ON A MONITOR AND SEE
BLUE...THE MONITOR SENDS OUT WAVELENGTH OF 400 TO 700 NM

The monitor sends out a complicated spectrum, some from the
R source, some from the G source, some from the B source.
If you are looking at a photograph, this spectrum might not
look at all like the spectrum from the original object, which
might have had some nonzero values at every visible
wavelength. However, it's designed to excite the same response
from your RGB receptors so to you it looks the same.

THE PIXEL FILTER/SHADER BLENDS RGB TO "ONE WAVE LENGTH". SIMILAR THE
CCD SPLIT THE WAVELENGTH INTO COMPONENTS.

RGB OR CMYK IS JUST FILTERS FOR "ONE WAVE LENGTH" YOU COULD PROBABLY
MAKE A CMYK SHADER FOR A MONITOR AND IT WOULD WORK JUST FINE IF THE
YOU HAD A CMYK SPLITTER AND THE TRANSMISSION WAS CMYK

THERE WILL NEVER BE ANY CMYK OR RGB CODED LIGHT TRAVELLING THE AIR
BLUE IS BLUE AND EACH BLUE COLOR HAVE ONE SPECIFIC SPECTRUM WITHIN THE
RANGE OF 400 TO 700 NM

But there can be light with a complicated spectrum containing
some blue, some red, some green, some yellow, some orange,
etc.

I'm not sure what point you're trying to make. I'm late to this
discussion.

The point is that you and Jim Pennino claim that the values travel
through air as 3 separate wavelengths, i claim they travel through air
blended and that the single color wavelength is measurable, without
measure the 3 separate wavelengths and interpolate the wavelength you
and Jim only think is an apparent wavelength.

I "think" the 3 RGB wavelenghts actually is blended and measurable as
one wavelength without having to pass a lens or prism.

J


- Randy- Dölj citerad text -

- Visa citerad text -


.

Relevant Pages

  • Re: Contious optical receiver
    ... What differ a prism from a RGB mask? ... So you say the blending a CCD record is not physical? ... BLUE...THE MONITOR SENDS OUT WAVELENGTH OF 400 TO 700 NM ...
    (sci.physics)
  • Re: Contious optical receiver
    ... What differ a prism from a RGB mask? ... spectrum that is visible to the human eye. ... It isn't simply pure wavelength. ... HAVE A LIMITED RANGE SPECTRA....WHEN YOU LOOK ON A MONITOR AND SEE ...
    (sci.physics)
  • Re: Primary colors
    ... a paint shop and ask for white paint and black paint -- you should ... that can be found somewhere in the visible spectrum. ... white do not- any wavelength with zero ...
    (sci.astro.amateur)
  • Re: Contious optical receiver
    ... What differ a prism from a RGB mask? ... by the way the brain and eye work. ... spectrum that is visible to the human eye. ... It isn't simply pure wavelength. ...
    (sci.physics)
  • Re: Contious optical receiver
    ... What differ a prism from a RGB mask? ... by the way the brain and eye work. ... spectrum that is visible to the human eye. ... It isn't simply pure wavelength. ...
    (sci.physics)
Loading