Optical waveguides – Optical fiber bundle – Transition between geometric shapes
Reexamination Certificate
2006-02-28
2006-02-28
Kim, Ellen E. (Department: 2874)
Optical waveguides
Optical fiber bundle
Transition between geometric shapes
C385S116000, C385S126000, C385S127000
Reexamination Certificate
active
07006741
ABSTRACT:
A broad-spectrum, high spatial and time resolution contact-field optical microscope comprises a fiber optical taper, a vacuum chamber, a photocathode, a magnetic lens photoelectron image enlarger, a micro-channel plate image intensifier, a phosphor screen and a CCD. Sample is placed directly in contact with a smaller sampling face of the optical taper. Light which is emitted, reflected or transmitted by the sample is launched into each of the fiber core ends on the sampling face and conveyed by the optical fibers to a larger imaging face of the optical taper, thereby presenting an enlarged image at the imaging face. The image is converted into a photoelectron image by photocathode which is deposited on the surface of the imaging face. The photoelectron image is further enlarged by magnetic lenses and intensified by micro-channel plate. The enlarged and enhanced electron image is displayed on phosphor screen and coupled through faceplate to CCD.
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