Device and method for controlling the contrast in an image observation system provided with an MCP image intensifier
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United States of America Patent
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Aug 23, 1994
Grant Date -
N/A
app pub date -
Nov 16, 1992
filing date -
Apr 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for determining a control signal for an image observation system including an image intensifier and an image converter wherein the control signal is representative of the contrast range of an output signal of the image converter and with control elements for adjusting the gain of the image intensifier and the gain of the image converter in a manner whereby the control signal at a value representative of a large contrast range in the output of signal of the converter results in higher adjustment gain of the image intensifier and a lower adjustment gain to the image converter and where the control signal at a value representative of a low contrast range in the output signal of the image converter results in lower adjustment gain to the image intensifier and higher adjustment gain to the image converter.
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