Tech Help
SOLVE THE MYSTERIES OF CAMERA TUBES!The
camera tube is a electronic device that is used to convert light
(images) into a electronic signal that can be used for either
digital or analog signal processing. This conversion is accomplished
via the use of a photosensitive material applied to the
light-receptive surface in the tube. Each manufacturer uses a
unique photosensitive material. Each of these materials have
characteristics that affect resolution, lag or contrast.
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PLUMBICON
Plumbicon sometimes, called
Leddicon, is a
registered trademark of Philips. It is suited for use in
digital subtraction and angio applications. These tubes have low output, but a high
signal-to-noise ratio. VIDICON
Vidicon is the most common
type of camera tube. It offers good resolution, moderate lag and low
image distortion. NEWVICON
Newvicon is a registered trademark of Matsushita. Newvicon tubes are characterized by high light sensitivity. The response of the photosensitive material extends into the infrared range. |
SATICON
Saticon is a registered trademark of
Hitachi. Most of these types of tubes are made by Heimann. They
provide high resolution
and excellent contrast, but with more lag than the plumbicon. Good
for quick moving images. PASECON
Pasecon is a registered trademark of
Heimann, sometimes
called Chalnicon when made by Hamamatsu. This tube is highly sensitive with a low dark
current, good signal uniformity and resolution. OTHER
RESISTRON: a registered
trademark of Heimann. This tube is a vidicon type tube that is good
for routine work, since it has high contrast and good
resolution. PRIMICON: a registered
trademark of Thomson. These tubes are no longer in production. X-CON: a registered trademark of Teltron. These tubes use the same photo-conductor as the Newvicon.
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