Measuring head
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United States of America Patent
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Sep 12, 1989
Grant Date -
N/A
app pub date -
Aug 31, 1988
filing date -
Oct 1, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A measuring head for the determination of the optical reflectance properties of color measuring fields co-printed with color sheets includes an optical illuminating device having two Mangin mirrors and an aplanar system located in alignment with the Mangin mirrors in a central opening. The light emitted by a light source and reflected by the measuring area arrives in a glass rod and is fed through an optical measuring device into a light waveguide, through which the reflected light is fed into a spectrometer for spectral analysis.
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