Confocal microscope and wide field microscope

A confocal microscope for observing the image of an object to be observed by scanning a spot light for illuminating the object through an objective lens, comprises an aperture stop for adjusting the numerical aperture of the objective lens; and a control unit for calculating a contrast of the image...

Full description

Saved in:
Bibliographic Details
Main Author OGINO KATSUMI
Format Patent
LanguageEnglish
Published 26.07.2001
Edition7
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A confocal microscope for observing the image of an object to be observed by scanning a spot light for illuminating the object through an objective lens, comprises an aperture stop for adjusting the numerical aperture of the objective lens; and a control unit for calculating a contrast of the image of the object corresponding to each focal position while varying the focal position of the objective lens along the direction of the optical axis so as to determine the height of the unevenness on the surface of the object from a change of the contrast, thereby setting the aperture stop to have the focal depth substantially equal to the height of the unevenness.
Bibliography:Application Number: US20010767717