Cylindrical fiber probes and methods of making them
Patent 5570441 Issued on October 29, 1996. Estimated Expiration Date: 
May 20, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 20, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesEtching of optical fibers Optical near-field scanning microscope Near field scanning optical microscopy Photon scanning tunneling microscopy Near-field scanning optical microscope using a fluorescent probe Near field scanning optical microscope having a tapered waveguide Fiber probe device having multiple diameters Patent #: 5394500 InventorsAssigneeApplicationNo. 247165 filed on 05/20/1994US Classes:385/43, Tapered coupler65/429, With etching or leaching385/123OPTICAL FIBER WAVEGUIDE WITH CLADDINGExaminersPrimary: Lee, John D.Assistant: Palmer, Phan T. H. Attorney, Agent or FirmForeign Patent References
International ClassG02B 006/26AbstractThis invention involves a fiber probe device and a method of making it. The probe includes a relatively thick upper cylindrical portion, typically in the form of a solid fight circular cylinder, terminating in a tapered portion that terminates in a relatively thin lower cylindrical portion, typically also in the form of a solid right circular cylinder, the lower portion having a width (diameter) in the approximate range of as little as approximately 0.05 μm.Other References
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