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US 4,198,571 AGranted
Scanning microscopes
AssigneeNational Research Development Corporation
InventorColin J. R. Sheppard
Life of this patent
Estimating the term…
Abstract
A scanning microscope includes first and second focusing means arranged confocally, at least one focusing means being of annular form, (for example a lens and closely-spaced opaque screen having an annular aperture); coherent radiation detection means arranged to receive radiation from one focusing means; and scanning means to scan an object in the focal plane.
Claims9
Apparatus for use in a scanning microscope comprising first and second focusing means arranged confocally, at least one focusing means being of annular form;
- coherent radiation detection means arranged to receive radiation from one focusing means;
- and scanning means arranged to cause relative movement in the focal plane of an object to be viewed and the position of the focus.
Dependencies are inferred from the claim text.