New Color Movies Projected Through Tinted Gelatine Shutters (Jan, 1929)
New Color Movies Projected Through Tinted Gelatine Shutters
A NEW natural color process, the O’Grady natural color film process, is soon to be available for 16 mm. films and cameras. This system is based on the Kinemacolor process invented many years ago. Ordinary panchromatic film is used and is exposed through a color wheel having two semi-circular segments, one of red and orange, the other of blue and green. The film is developed the same as any black and white panchromatic film and a print made in black and white from it. The projector is equipped with a different shutter blade than ordinarily. It consists of alternate transparent and semi-opaque segments of the seven colors of the spectrum. When the black and white print is projected through this all the colors of the original subject are produced with great fidelity. Flicker and fringing, the bane of color experimenters in the past, are practically eliminated. Frederick T. O’Grady, the inventor, has been perfecting his process for the past fifteen years and is at present engaged on the production of a 16 mm. color camera and projector.
Apparently he worked on his process for a while….
http://www.google.com/patents?.....38;f=false
http://www.google.com/patents?.....38;f=false
http://www.google.com/patents?.....38;f=false
Comment by Firebrand38 — February 23, 2010 @ 5:39 pm
It’s the same principle as the CBS mechanical color televison of the early 1950s.
(And the Apollo color TV cameras!)
Comment by jayessell — February 27, 2010 @ 12:39 pm
jayessell: I had no idea that’s how the Apollo color camera worked (using a mechanical color wheel). After your post I found this link http://history.nasa.gov/alsj/Niemyer-Paper.pdf
Comment by Firebrand38 — February 27, 2010 @ 1:16 pm
FB: I’m surprised to surprise you.
The CBS/RCA battle for color is fascinating.
Millions of existing monochrome sets made the incompatible system a non-starter.
That, and the mechanical requirements for a 22″ inch screen!
(A 10 horsepower motor and a 5 foot disk!)
$#@!!!
Can’t Google the magazine article I wanted to show you!
(Congressional wheeler dealings and Sarnoff’s nearly underhanded shenanigans!)
Well… there’s this:
http://www.tvhistory.tv/1950_A.....GE-pg3.JPG
Now, in the 21st century, his miracle of technology is obsolete!
Comment by jayessell — February 27, 2010 @ 11:36 pm
Oops…
The complete article:
http://www.tvhistory.tv/1950_A.....GE-pg3.JPG
http://www.tvhistory.tv/1950_A.....GE-pg4.JPG
http://www.tvhistory.tv/1950_A.....GE-pg5.JPG
http://www.tvhistory.tv/1950_A.....E-pg21.JPG
Comment by jayessell — February 27, 2010 @ 11:49 pm
FB:
Here’s the article I couldn’t google!
http://www.earlytelevision.org/color_war.html
Comment by jayessell — February 28, 2010 @ 11:08 pm
jayessell: Thanks for taking the time.
Comment by Firebrand38 — February 28, 2010 @ 11:51 pm