| The
Clinton DS5100P Monitor is an Orwin Associates
designed high contrast diagnostic gray scale
with exceptional contrast modulation. The 36
mm optics permits high beam currents for peak
luminance to be controlled from the 50% point
of luminance energy down to the critical 5%
point for optimum MTF. In combination with the
new faster video amplifier, the horizontal component
of the pixel is held in a narrow column of energy
that provides increased depth of modulation
across the spatial frequencies of complex medical
images.
The
On-Screen Display (OSD) user controls provide
access to a quick menu and software protected
service functions. If the video source is either
incorrect or not present, the OSD provides an
error message. The OSD menu functions can access
five test patterns and switch the input impedance
to match either 50 or 75 ohm terminations.
The
microprocessor analyzes the video source and
automatically selects the proper scaling for
optimized writing speed for the pixel format
and refresh rate.
Total
Quality Assurance (TQA) of the luminance response
is maintained with the built in luminance sensor
subsystem designed for low ambient conditions
of reading rooms. Using one of the three serial
ports, the luminance data is transferred to
the dome TQA software for hands free calibration
from the initial verification of black and peak
white levels to the gamma correction LUT. Performance
history is logged and maintained at the workstation
or transferred to a Network archive via thedome
TQA protocols.
The
Clinton Monitor DS-5100P comes standard with
P45 phosphor finely milled to minimize spatial
noise and structured artifacts. The large 300
x 400 mm active video area is the maximum useable
space for a 21 inch diagonal CRT. The addressable
pixel size at five megapixel is .146 mm and
the actual physical pixel is .139 mm for an
RAR of .95, well within the optimum range of
.9 to 1.1 RAR.
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