Re: Anyone given Color Daguerreotypes a try?

The diffraction method works on a different
physical principle. The one that I referred to
utilizes the phenomena of prismatic dispersion.
Gabriel Lippmann did work on theories
related to prismatic dispersion as well as
diffraction techniques in 1906.

Lippmann communicated the theory to the
Academie in the summer of 1906. However,
two years earlier Dr. Julius Rheinberg
(those familiar with microscopy will recognize
the name for his invention of optical staining
termed "Rheinberg Illumination") presented papers
in England and received a patent for an apparatus
of his design that created color photography using
prismatic dispersion.

Evidently, Gabriel Lippmann worked out the
principles independently of Rheinberg; having
no translations available of Rheinberg's earlier work.

-phillip

MARTINM wrote:

> "And the other is a little know process
> which creates colors by Micro-Dispersion. Sometimes
> spoken of as the Spectral-Dispersion process."
>
> Are you referring here to Lippmann's suggestion (1906) to use
> some diffraction encoding device in order to make full color
> photographs?
>
> Martin
>
> ----- Original Message -----
> From: "Phillip Murphy" <pmurf@bellsouth.net>
> To: <alt-photo-process-l@sask.usask.ca>
> Sent: Sunday, June 20, 2004 7:27 AM
> Subject: Re: Anyone given Color Daguerreotypes a try?
>
> > The technique you describe is an adaptation of the method
> > used by Fox Talbot in his patent applied for in 1841.
> > The phenomenon was also discovered independently by
> > Kratochwila in Vienna and later by Francis R. Wells
> > who applied for a patent using heat as the developer.
> > As it turned out, the image was much weaker than the
> > silver image of the Daguerreotype and was abandoned.
> > There were attempts at using the image as a basis for
> > making etchings.
> >
> > Colors appear on the plate, however, they have no
> > relationship to the spectra which created the image.
> >
> > The Hillotype was the first photographic means by
> > which a record of nature's colors appeared in the image
> > with any degree of accuracy and could remain in the
> > daylight without fading. This was in the early part of
> > the 1850's. Levi Hill's process is not a Daguerreotype,
> > yet, the technique does use the Daguerreotype plate as it's
> > foundation.
> >
> > Fifty years later, two processes could reproduce
> > natural colors in the lab with good results. One is
> > the Nobel Prize winning process of Gabriel
> > Lippmann. And the other is a little know process
> > which creates colors by Micro-Dispersion. Sometimes
> > spoken of as the Spectral-Dispersion process.
> >
> > -phillip
> >
> >
> >
> >
> >
> >
> > Jeff Sumner wrote:
> >
> > > >From the back of an old Daguerreotype manual:
> > >
> > > [quote]
> > > COLORED DAGUERREOTYPES ON COPPER.--To effect this, take a polished plate
> of
> > > copper and expose it to the vapor of iodine, or bromine, or the two
> > > substances combined; or either of them in combination with chlorine.
> This
> > > gives a sensitive coating to the surface of the plate, which may then be
> > > submitted to the action of light in the camera. After remaining a
> sufficient
> > > time in the camera, the plate is taken out and exposed to the vapor of
> > > sulphuretted hydrogen. This vapor produces various colors on the plate,
> > > according to the intensity with which the light has acted on the
> different
> > > parts; consequently a colored photographic picture is obtained. No
> further
> > > process is necessary as exposure to light does not effect the picture.
> > > By this process we have an advantage over the silvered plate, both in
> > > economy, and in the production of the picture in colors.
> > > [/quote]
> > >
> > > Anyone give it a go? What colors, exactly? Doesn't sound like the color
> > > process that someone else was trying to perfect at the time, and it most
> > > CERTAINLY isn't the Polaroid answer to the color problem.
> > >
> > > It _is_ interesting, though.
> > > JD
> >
Received on Mon Jun 21 04:43:11 2004