Post by Robert Netzlof Post by J. Clarke Post by Jorgen Grahn
Why is it called RGB -- can you also get CMYK?
You could, but black LEDs are generally considered to be defective
for some reason.
I believe you are actually thinking of the little-known Dark Emitting
Diode, once promoted for use in constructing portable photographic
darkrooms. With the decline in film photography in favor of digital,
darkrooms and thus the DED declined in popularity until today, both
are practically unknown.
Before the Dark Emitting Diode, the was heliotex, the crystalkanoogin
valve and the Hay field.
The Best of The Journal of Irreproducible Results, 1983 (original
pub. date unknown) pp. 180-1
DEFINITION OF A DARKBULB
Edited by Dr. George H. Scherr, Workman Publishing, New York
James L. DeLucas
The darkbulb is an electronic device thai produces darkness. It is
similar in appearance to the ordinary lightbulb. Whereas the lightbulb
is considered an energy source, the darkbulb could be considered an
The darkbulb looks like the ordinary lightbulb. It is much heavier, a
typical 60 watt bulb weighing about two pounds. The darkbulb's outer
shell is made of a special metallic material called heliotex. Heliotex
was made specially for the bulb, and it is necessary for the bulb's
operation. The bulb screws into an ordinary light socket and can be
run on house current. The bulbs are normally coated black for easy
identification. Darkbulbs come in power sizes similar to the
lightbulb. Two and three-way bulbs and special purpose bulbs are also
The Hay Field
Unlike the simple heating filament of the lightbulb, the inner
contents of the darkbulb are complicated and electronic. The heart of
this device is the crystalkanoogin valve. The crystalkanoogin valve
was designed by Edison A. Thomas, an engineer at General Electric.
(See "An Inexpensive Dissipator of Radiant Energy," Electronics,
Vol. 42, No. 7, pp. 59-67, July 1970.) The valve is made up of a
series of miniature electronic components. The sole purpose of the
valve is the production of the Hay field.
The Hay Reverse Electromagnetic Field, or Hay (REF), was theoretically
proven to exist by R.E.F. Hay at MIT in late 1969. This invisible
field is able to dissipate normal electromagnetic energy, such as
light, by converting this energy into the reverse electromagnetic
energy of the Hay field. This energy conversion process is the means
by which the Hay field propagates through the air. In a vacuum the Hay
field would propagate indefinitely. In air, however, the Hay field
would lose energy to the surrounding medium and it would soon
disappear. Thus, the crystalkanoogin valve must continuously produce
the Hay field. Also, the Hay field will not propagate unless the
surrounding medium contains electromagnetic energy, since the Hay
field uses this energy to sustain itself.
The Hay field is analogous to a vacuum cleaner that sucks
electromagnetic energy from the air. Electromagnetic energy such as
light can be thought of as being absorbed by the darkbulb and then
converted into the Hay field. The recycling of the trapped light
energy not only solves the energy dissipation problem but also puts
this energy to useful work.
The crystalkanoogin valve sets up the Hay field on the inside surface
of the heliotex shell. The properties of the heliotex material cause
it to radiate the Hay field into the surrounding space, much like a
lightbulb would radiate light energy from the heating filament. The
heliotex shell thus acts as a radiating antenna for the Hay field. The
type of radiation absorbed by the bulb is dependent on the impurities
present in the heliotex shell. The impurities can be controlled during
the making of the heliotex. Thus, special purpose bulbs that absorb
only one kind of electromagnetic energy can be made. For instance, it
is possible to Create a darkbulb that absorbs only red light, or a
bulb that absorbs only cosmic rays.
During operation, the surface of the bulb will actually become cool
due to dissipation of heat from the heliotex material. The darkbulb
"sucks" light energy from the air, but the bulb is not a perfect
discriminator, and very small amounts of other forms of energy in the
vicinity of the bulb will also be dissipated. The bulb will become
cold because of a loss of heat energy to the field.
The ordinary darkbulb is one that will absorb light. The bulb will
dissipate light, that is, produce darkness in as large an area and to
as comparable a degree as a lightbulb of the same wattage will produce
The Dark Fantastic
The ordinary darkbulb has many uses. A flip of the switch makes it
possible to sleep in the daytime
[ Image not available]
Sunlight streaming into a room inhibits sleep, but flipping on
the darkbulb envelops the subject in soothing darkness.
[Image not available]
Darkbulbs come in a variety of sizes, shapes, and wattages.
without the use of eyepatches. Photographic enthusiasts no longer need
to spend money "lightproofing" a darkroom. Just screw a darkbulb into
a socket and any room becomes an instant darkroom. Eye doctors have
found darkbulbs particularly useful for conducting eye
examinations. There are applications of the bulb in the scientific
fields, where many experiments require the absence of surrounding
radiant energy. The darkbulb also seems to be popular at parties.
Special purpose darkbulbs are finding wider applications. The special
purpose radio wave darkbulb will absorb radio waves from the
surrounding area. One application of this bulb is in the scientific
field where certain experiments require shielding from radio
waves. The cosmic and X-ray darkbulbs absorb cosmic energy and X-rays
from the air. These potentially hazardous forms of energy can now be
snatched from the air before they reach the vulnerable human being.
As scientific technology advances, the special purpose infrared
darkbulb will eventually be produced. Such a bulb would absorb
infrared (heat) energy. The invention of this type of darkbulb would
have a profound effect on modern society.
Refrigerators would no longer need a complex mechanical cooling
system -- just an infrared darkbulb inside. Sunbathers in the
vicinity of an infrared darkbulb could get a tan without worrying
about the harmful rays that cause sunburn. Air cooling could be
accomplished with a darkbulb. Unfortunately, technology has not found
a way to prevent the heliotex shell from becoming frozen solid during
the bulb's operation. In the frozen condition, the heliotex shell
fails to maintain the Hay field.
The darkbulb can be found in any store that carries lightbulbs. The
cost of this modern advance in technology has been considerably
reduced, although it is still much more expensive than the
lightbulb. However, the darkbulb is not beyond the reach of the
average-income American family. Indeed, they are becoming as common as
the home radio.
Mike Spencer Nova Scotia, Canada