Phase shift method and apparatus for implementing phase-contrast or modulation-contrast observation on microscopes
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United States of America Patent
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Mar 17, 2009
Grant Date -
Jun 24, 2004
app pub date -
Oct 2, 2003
filing date -
Oct 2, 2002
priority date (Note) -
Expired
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Abstract
The invention concerns an apparatus for implementing phase-contrast or modulation-contrast observation on microscopes with the aid of a modulator (7) arranged in each pupil plane in the observation beam path and containing at least one layer modifying the phase or amplitude, and of a stop (3) arranged in the illumination beam path. For stepless adaptation of the phase shift, the modulator (7) is mounted tiltably. The invention further concerns a method for implementing a defined phase shift.
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